The Cell
What is the main function of a flagellum? A flagellum is used to infect the host. A flagellum helps in the locomotion of the organism. A flagellum is used to attract other prokaryotic cells for sexual reproduction.
Correct A flagellum helps in the locomotion of the organism is the correct answer. Prokaryotes contain flagellum or flagella that are used for locomotion and body movements. Some cells may contain one or two flagella. The flagellum is not used to infect or cause disease in the host. The flagellum is not used during reproduction in the prokaryotes. The flagellum is solely used for locomotive purposes by the prokaryotes and not for food ingestion.
Which of the following is a function of the cell wall? A plant's cell walls reflect the light. A plant's cell wall prevents any mechanical or osmotic stress. A plant's cell wall attracts the pollinators. A plant's cell wall imparts color to the leaves.
Correct A plant's cell wall prevents any mechanical or osmotic stress is the correct answer. The plant cell wall provides protection to the plants against mechanical and osmotic stress. It also maintains the shape and the turgor pressure. Turgor pressure is the force within the cell that pushes the cell membrane up against the cell wall. It plays an important role in a plant's growth, development, and overall functioning. The cell walls in the plant cell do not reflect light. Pollinators are not attracted to the cell wall. They are attracted to the color or scent. The leaf color is due to the presence of various pigments and not the cell wall.
Endocytosis is a type of __________. Active transport Osmosis Facilitated transport Passive diffusion
Correct Active transport is the correct answer. Endocytosis allows the active transport of large molecules, such as parts of the cells or whole cells, into the cell. The rest of the processes do not facilitate the transport of large molecules into the cell.
What is the difference between active transport and passive transport? Molecules move against the concentration gradient in active transport without needing energy. Active transport uses energy to move the substances against the concentration gradient. Active transport requires energy for the transportation of materials along the concentration gradient. In both, substances move from high to low concentration regions.
Correct Active transport uses energy to move the substances against the concentration gradient is the correct answer. Active transport utilizes cellular energy in the form of ATP to transport the molecules across the cell in the direction opposite to the concentration gradient—from low concentration to high concentration. Passive diffusion allows the movement of molecules from high concentration to low concentration without any energy.
Which of these structures does not differentiate a prokaryotic from a eukaryotic cell? Nucleus Organelles Cell membrane Type of DNA
Correct Cell membrane is the correct answer. Both prokaryotic and eukaryotic cells have a cell membrane that separates the contents of the cell from the external environment. DNA is circular and single-stranded in prokaryotic cells, while it is double-stranded and helical in eukaryotic cells. Prokaryotic cells do not have a nucleus. Instead, they have a nucleoid region in which their DNA is present. Eukaryotic cells have a well-defined nucleus. Cell organelles are absent in prokaryotic cells, while they are present in eukaryotic cells.
Which of these structures does not differentiate a prokaryotic from a eukaryotic cell? Organelles Type of DNA Cell membrane Nucleus
Correct Cell membrane is the correct answer. Both prokaryotic and eukaryotic cells have a cell membrane that separates the contents of the cell from the external environment. DNA is circular and single-stranded in prokaryotic cells, while it is double-stranded and helical in eukaryotic cells. Prokaryotic cells do not have a nucleus. Instead, they have a nucleoid region in which their DNA is present. Eukaryotic cells have a well-defined nucleus. Cell organelles are absent in prokaryotic cells, while they are present in eukaryotic cells.
Which of the following cell organelles are found in plants but not in animal cells? Vacuoles Mitochondria Endoplasmic reticulum Chloroplasts
Correct Chloroplasts is the correct answer. Plant cells contain chloroplasts, which are the primary sites for photosynthesis and are not present in animal cells. Vacuoles are present in both plant and animal cells. Mitochondria carry out cellular respiration in both plant and animal cells. The endoplasmic reticulum is seen in both plant and animal cells.
The phospholipid bilayer has several functions except for _______________. Ion gradient formation Energy production Filtration Provision of rigidity and support to the cell
Correct Energy production is the correct answer. The phospholipid bilayer in the cell membrane does not produce energy. Ion pumps rely on cellular energy to actively transport unwanted ions across the lipid bilayer. The phospholipid bilayer helps in the filtration of molecules from the environment. The phospholipid bilayer helps in the formation of ion gradients. The phospholipid bilayer provides rigidity and support to the cell.
The process that utilizes the membrane's proteins to move a substance across the membrane is called ___________. Osmosis Active diffusion Facilitated diffusion Passive diffusion
Correct Facilitated diffusion is the correct answer. Facilitated diffusion happens with the help of membrane proteins that transfer the molecules in the direction of the concentration gradient across the membrane. In passive diffusion, molecules diffuse in the direction of the concentration gradient without any membrane or carrier proteins. In osmosis, only water molecules can cross the membrane. Active diffusion transfers the molecules against their concentration gradient with the use of energy.
A cell membrane acts as a semipermeable membrane. What does that mean? It allows only certain molecules to diffuse across the membrane. It is impermeable to any molecule trying to cross the membrane. It allows all types of molecules to cross the membrane. It is only permeable to hydrophilic substances.
Correct It allows only certain molecules to diffuse across the membrane is the correct answer. Semipermeable membranes allow only certain types of molecules or ions to cross the cell membrane via diffusion. It allows small, hydrophobic substances to cross the membrane easily.
What is the chief role of cholesterol in the cell membrane's function? It forms receptors in the cell membrane. It decreases the permeability of the cell membrane. It increases the strength of the cell membrane. It enhances the diffusion of polar molecules.
Correct It decreases the permeability of the cell membrane is the correct answer. Cholesterol gets deposited into the phospholipid layer and restricts the movement of the molecules across the cell membrane. Cholesterol does not help in increasing the strength of the cell membrane. Cholesterol prevents the passage of polar molecules whereas proteins in the cell membrane allow the passage of polar molecules across the cell membrane. Glycoproteins help in the recognition of cells and act as receptors for various hormones and drugs.
The cytoskeleton of a eukaryotic cell has the following characteristic features except: It has fibres that stabilize the cell. It has microfilaments made up of proteins. It contains microtubules that stimulate cell movement. It is present inside the nucleus.
Correct It is present inside the nucleus is the correct answer. The cytoskeleton is present inside the cytoplasm, which holds microfilaments, microtubules, and fibers that aid in cellular movement. The cytoskeleton is made up of microtubules, microfilaments, and intermediate filaments. Microfilaments are made up of protein. Microtubules stimulate cell movement. Intermediate filaments are cellular structural elements that stabilize the cells.
Which of these functions is performed by lysosomes? Lysosomes carry out intracellular digestion and disintegrate the cell after its death. Lysosomes help in destroying foreign substances. Lysosomes have a basic internal pH that helps disintegrate the cell. Lysosomes contain specific enzymes that help in carrying out the body's process of food digestion.
Correct Lysosomes carry out intracellular digestion and disintegrate the cell after its death is the correct answer. Lysosomes are cellular organelles that contain digestive enzymes, helping in the intracellular digestion of various substances. They also disintegrate the cell after its death. This ensures the cellular environment is devoid of any waste and dead cells. White blood cells are responsible for the destruction of foreign substances. Lysosomes do not help in the body's process of food digestion. Lysosomal enzymes are acidic in nature and not basic.
Certain dead cells and foreign substances are normally removed from our cells with the help of cellular digestive enzymes. Which organelles contain these enzymes? Endoplasmic reticulum Lysosomes Nucleus Golgi complex
Correct Lysosomes is the correct answer. Lysosomes are cellular organelles that contain more than 50 digestive enzymes in the acidic environment. They are able to digest any intracellular foreign particles, dead cells, or waste biomolecules. The endoplasmic reticulum does not contain any digestive enzymes. The nucleus is an organelle that contains DNA and RNA and does not contain any digestive enzymes required for intracellular digestion. The Golgi complex helps in protein modification and assortment but does not contain any cellular digestive enzymes.
Which of the following statements correctly describes mitochondria? Mitochondria is responsible for cellular respiration in both plants and animals. Mitochondria contains digestive enzymes. Mitochondria is responsible for translating mRNA sequences in the cytoplasm. Mitochondria can carry out photosynthesis and produce energy.
Correct Mitochondria is responsible for cellular respiration in both plants and animals is the correct answer. Mitochondria is a double membraned organelle that is primarily responsible for the production of ATP molecules and is, hence, considered to be the powerhouse of the cell in both plants as well as animals. Mitochondria do not carry out photosynthesis. Photosynthesis occurs in chloroplast. Mitochondria do not translate mRNA. This process occurs in the cytoplasm by ribosomes. Mitochondria do not contain digestive enzymes. Digestive enzymes are present in lysosomes.
Which of these is not a part of the endomembrane system of the cell? Golgi apparatus Lysosome Endoplasmic reticulum Mitochondria
Correct Mitochondria is the correct answer. The extensive set of membranes present inside the cell constitutes the endomembrane system. It is formed from the endoplasmic reticulum, Golgi apparatus, and lysosomes.
Diffusion is the process of _______________. Movement of substances from low concentration to high concentration across the membrane Movement of molecules within a cell Movement of water molecules across the cell membrane Movement of substances from high concentration to low concentration across the membrane.
Correct Movement of substances from high concentration to low concentration across the membrane is the correct answer. Diffusion is when substances are moved from high concentration to low concentration across the cell membranes. It differs from osmosis in that water molecules are transferred across the cell membrane in osmosis. Diffusion may be passive, active, and facilitated.
Which of the following body cells have large amounts of ribosomes? Skin cell Adipose cell Egg cell Muscle cell
Correct Muscle cell is the correct answer. The muscle cells / tissues have a large number of ribosomes and, therefore, a higher rate of protein synthesis. They require proteins that help in the contraction and relaxation of muscles or any muscle movement. An egg cell is a gamete that consists of a fair amount of ribosomes required only for its growth. Skin cells also have ribosomes, but not in as large quantities as the muscles. Adipose cells store fat and do not contain as large of a number of ribosomes as compared to muscle cells.
The semipermeable membrane allows the movement of water molecules, along the concentration gradient, using a process called ______________ Osmosis Carrier-mediated transport Passive diffusion Facilitated diffusion
Correct Osmosis is the correct answer. Osmosis is when only water molecules diffuse from an area of high concentration to an area of low concentration. In passive diffusion, molecules move in the direction of the concentration gradient without any membrane or carrier proteins. Facilitated diffusion happens with the help of membrane proteins that transfer the molecules in the direction of the concentration gradient across the membrane. The carrier-mediated cell transport utilizes a protein to transfer the molecules.
Which one of the following is NOT a function of the cell membrane? Help in the interaction of a cell with another cell Transportation of nutrients into the cell Permeability to large and highly charged molecules Protection of the cell from the external environment
Correct Permeability to large and highly charged molecules is the correct answer. The cell membrane protects the cell, allows transport of smaller molecules, and interacts with neighboring cells. It is impermeable to large molecules such as amino acids, sugars, and highly charged molecules like ions. The cell membrane helps in the transportation of nutrients. The cell membrane protects the cell from the external environment. The cell membrane helps in the interaction of a cell with another cell.
The process by which microorganisms are removed from the invaded cells by neutrophils is called _____________. Phagocytosis Exocytosis Endocytosis Pinocytosis
Correct Phagocytosis is the correct answer. Phagocytosis means "cell eating," in which the cell engulfs large particles, including other cells or microbes. Exocytosis is a process by which waste materials are moved out by the cell. In endocytosis, large molecules or cells are moved into a cell. In pinocytosis, the cell engulfs water by budding the cell membrane.
Which of the following statements correctly describes the process of phagocytosis? Phagocytosis is the process of digesting food particles with the help of digestive enzymes. Phagocytosis is the process of excreting the digested food particles through vesicle formation. Phagocytosis is the process where the vesicles pinch off from a membrane to transport the substances. Phagocytosis is the process where the cell membrane invaginates to engulf food particles and forms a vacuole, within, to digest them.
Correct Phagocytosis is the process where the cell membrane invaginates to engulf food particles and forms a vacuole, within, to digest them is the correct answer. Phagocytosis is the process of ingesting food particles from the outside. The cell membrane invaginates to engulf the food and forms a vacuole. The food particles are later digested within this vacuole. Phagocytosis is a series of steps involved in both ingestion and digestion of food. Phagocytosis does not involve any digestive enzymes required for digestion. In protein transportation, the vesicles pinch off from the membrane carrying certain substances for their release. This does not happen in phagocytosis.
Which of the following statements is true? Plant cells contain both rough and smooth endoplasmic reticulum that carry out photosynthesis. Plant cells contain mitochondria that help in the process of photosynthesis Plant cells contain Golgi complexes that aid in the process of photosynthesis. Plant cells contain chloroplasts, photosynthetic organelles which have chlorophyll pigments within.
Correct Plant cells contain chloroplasts, photosynthetic organelles which have chlorophyll pigments within is the correct answer. Plant cells contain a cellular organelle called a chloroplast, which contains a photosynthetic pigment called chlorophyll. Chloroplasts carry out photosynthesis in the presence of water, carbon dioxide, and sunlight to produce glucose and oxygen. Mitochondria help in cellular respiration and not in photosynthesis. The Golgi complexes are responsible for protein modification and sorting. They do not aid in photosynthesis. Both types of endoplasmic reticulum do not carry out photosynthesis because they do not contain any photosynthetic pigments or complexes.
Which one of the following statements justifies the comparison of plant and animal cells? Chloroplast is present in both animal and plant cells. Plant cells have only one large central vacuole, and animal cells have one or more small vacuoles. Both plant and animal cells have a cell wall. Animal cells have a fixed shape while plant cells have an irregular shape.
Correct Plant cells have only one large central vacuole, and animal cells have one or more small vacuoles is the correct answer. Plant cells have one large central vacuole, making up to 90% of cell volume, that stores water. Animal cells have one or more smaller vacuoles that store nutrients, water, and waste material. Animal cells do not have a cell wall. Both animal and plant cells have a fixed shape. Chloroplasts are not present in animal cells.
Which of the following statements about plant vacuoles is correct? Plant cells have one large vacuole whereas animal cells do not have any vacuoles. Plant cells have only one large vacuole whereas animal cells have numerous small vacuoles. Plant and animal cells have numerous vacuoles that differ in size. Plant cells have numerous small vacuoles whereas animal cells have only one large vacuole.
Correct Plant cells have only one large vacuole whereas animal cells have numerous small vacuoles is the correct answer. Plant cells have one large vacuole in the center which occupies almost 90% of the cytoplasmic space whereas animal cells have numerous vacuoles which are smaller in size. Both plant and animal cells have vacuoles within them, though the number differs. Plant cells have only one large vacuole whereas animal cells have small, numerous vacuoles within them. Both plant and animal cells have vacuoles. Plant cells have only one large vacuole whereas animal cells have numerous small vacuoles.
Which of these is present in both prokaryotic and eukaryotic cells? Ribosome Vacuole Endoplasmic reticulum Lysosome
Correct Ribosome is the correct answer. Both prokaryotic and eukaryotic cells have ribosomes. A vacuole is a membrane-bound organelle that can be used to store waste products, food, or water. They are not found in prokaryotic cells since they lack membrane-bound organelles. The endoplasmic reticulum is a membrane-bound organelle that plays an important role in the synthesis, folding, modification, and transportation of proteins. You will not find an endoplasmic reticulum in a prokaryotic cell because they lack membrane-bound organelles. A lysosome is a membrane-bound organelle that contains digestive enzymes. These enzymes are important to the lysosome's function, which is to break down waste materials and/or aid in the destruction of viruses or bacteria. You would not find a lysosome in a prokaryotic cell because they lack membrane-bound organelles.
Which of these is a function of the ribosome? Ribosomes help in amino acid assembly and in the formation of peptide bonds. Ribosomes are responsible for the intracellular digestion of waste products. Ribosomes help in transcribing the DNA information onto the RNA strand. Ribosomes carry out cellular respiration to release oxygen.
Correct Ribosomes help in amino acid assembly and in the formation of peptide bonds is the correct answer. The main function of the ribosome is to aid in protein synthesis. Ribosomes are able to decode the mRNA and help in amino acid assembly. They also help in the formation of peptide bonds that link the amino acids together in order to form proteins. Ribosomes are RNA units and do not digest any waste products in the cell. Cellular respiration occurs in mitochondria and not in ribosomes. The transcription of DNA takes place in the nucleus, which creates RNA.
What is the main function of the rough endoplasmic reticulum? Rough ER is responsible for the detoxification process. Rough ER helps in protein synthesis required for the rest of the cellular function. Rough ER helps in lipid storage. Rough ER helps primarily in protein metabolism.
Correct Rough ER helps in protein synthesis required for the rest of the cellular function is the correct answer. Rough ER or rough endoplasmic reticulum is solely responsible for protein synthesis and their transportation after the modification process. They have ribosomes present on their membrane surface that synthesize proteins, which are required for various cellular functions. This is where it gets its name "rough" ER - the ribosomes on the membrane give the ER a "bumpy" appearance under a microscope. Rough ER does not help in lipid storage, but the Smooth ER does. Rough ER helps in protein synthesis but not in the metabolism or digestion of proteins. Rough ER is not responsible for the detoxification process. Smooth ER is responsible for it.
Smooth endoplasmic reticulum helps in which of the following functions? Smooth ER plays an important role in protein synthesis. Smooth ER regulates the synthesis of various lipids and hormones. Smooth ER helps to store old cellular materials that will eventually need to be digested. Smooth ER aids in protein modification and folding process.
Correct Smooth ER regulates the synthesis of various lipids and hormones is the correct answer. The smooth endoplasmic reticulum (smooth ER) does not have ribosomes on its surface and, hence, cannot carry out protein synthesis. They are mainly responsible for lipid and steroid hormone synthesis. They also regulate calcium levels in the cell. The rough ER (rough endoplasmic reticulum) helps in protein synthesis. The smooth ER does not help in any protein modification process. Vacuoles are specialized lysosomes that are responsible for the storage and removal of waste products and foreign bodies or products that could potentially damage the cell. In other instances, they can be used to store water or nutrients such as lipids, proteins, and carbohydrates.
Which of the following is the function of the Golgi complex? The Golgi complex helps in sorting the new proteins into the vesicles. The Golgi complex helps in the storage of lipids. The Golgi complex helps the endoplasmic reticulum to synthesize the proteins.
Correct The Golgi complex helps in sorting the new proteins into the vesicles is the correct answer. Proteins move from the endoplasmic reticulum (where they are synthesized) to the Golgi complex, which helps in sorting the newly formed proteins and packs them into vesicles before they are transported to other parts of the cell. The Golgi complex also helps in the protein modification process. The Golgi complex is mainly responsible for protein modification and assortment. The Golgi complex does not store any lipids. The Golgi complex does not aid in decoding the mRNA.
Which of the following functions are carried out by the cytoskeleton of the cell? The cytoskeleton helps in cell division and cytokinesis. The cytoskeleton helps in the assembly of amino acids for protein synthesis. The cytoskeleton helps in DNA synthesis. The cytoskeleton gives shape to the entire body structure.
Correct The cytoskeleton helps in cell division and cytokinesis is the correct answer. Cytoskeletons are complex protein networks present in the cytoplasm of the cell and carry out vital functions. They regulate the entire cell division and cytokinesis, making sure that the dividing cells and chromosomes are held in place accurately. DNA synthesis does not take place with the help of the cytoskeleton. The assembly of amino acids and the process of translation is aided by the RNA molecules, not the cytoskeleton. The structure of the body is due to the skeleton, not the cytoskeleton in the cytoplasm.
Mitochondria carry out the most vital function in the cell. What are the end products of this physiological reaction? The end products mainly consist of large amounts of carbon dioxide and water. The end products consist of ATP molecules and glucose with oxygen as a byproduct. The end products mainly consist of ATP molecules with water and carbon dioxide as the byproducts.
Correct The end products mainly consist of ATP molecules with water and carbon dioxide as the byproducts is the correct answer. Mitochondria carry out cellular respiration, which generates 36 ATP molecules in total per cycle. ATP is required for various body functions. The rest of the byproducts are water molecules and the carbon dioxide that we breathe out. The end products of mitochondrial cellular respiration are not oxygen and glucose. The water and carbon dioxide molecules are the byproducts of cellular respiration. The main product is the ATP molecules. NADH and FADH2 are the energy carriers in cellular respiration, not the products.
Which of the following describes the structure of the endoplasmic reticulum? The endoplasmic reticulum is an interwoven network of membranes that extends from the surface of the nuclear membrane. The endoplasmic reticulum is a double-membrane vesicle that transports proteins. The endoplasmic reticulum is a fibrous complex of proteins suspended in the cytoplasm. The endoplasmic reticulum is a double-membraned organelle that contains nucleic acids.
Correct The endoplasmic reticulum is an interwoven network of membranes that extends from the surface of the nuclear membrane is the correct answer. It is responsible for processing all the proteins. The nucleus contains the nucleic acids and not the endoplasmic reticulum. The endoplasmic reticulum is responsible for processing the proteins but they themselves do not form any membrane vesicles. The endoplasmic reticulum is a membrane-bound organelle and not a complex network of fibrous proteins.
Identify the cell component that is present in both plant and animal cells. Central vacuole Nucleolus Chloroplast Cell wall
Correct The nucleolus is present inside the nucleus and is present in both plant and animal cells. Cell walls, chloroplasts, and central vacuoles are the structures present only in plant cells. They are absent in animal cells.
Which of the following best defines the function of the cell nucleus during reproduction? The nucleus plays a major role in zygote formation. The nucleus helps the fertilization process by attracting the sperm cell to the egg cell. The nucleus is responsible for the production of egg and sperm cells. The nucleus contains hereditary units which are passed on from parents to offspring during reproduction.
Correct The nucleus contains hereditary units which are passed on from parents to offspring during reproduction is the correct answer. The nucleus contains hereditary units in the form of DNA, which contains genes. The DNA is passed on from the parents to their offspring during reproduction. The nucleus is not responsible for the production of egg and sperm cells. These are formed from germ cells in the reproductive organs. The nucleus does not attract the sperm cell. The nucleus of a sperm cell fuses with the nucleus of an egg cell. They do not play any other role.
Which of the following functions are carried out by the nucleus? The nucleus synthesizes ribosomes. The nucleus is responsible for the storage of substances in the cell. The nucleus helps in the disposal of wastes from the cell. The nucleus regulates the DNA transcription and translation process.
Correct The nucleus regulates the DNA transcription and translation process is the correct answer. The cell's nucleus regulates the transcription process, within itself, and also the process of translation (protein synthesis) in the cytoplasm. It synthesizes mRNA during transcription and regulates its exit into the cytoplasm where protein synthesis takes place. The nucleus does not store substances in the cell. This is done by the vacuole. The nucleus does not play a role in disposing of wastes from the cell. This is done by vacuoles and lysosomes. Ribosomes are synthesized in the cytoplasm.
What is the main difference between the two types of endoplasmic reticulum? The rough ER has ribosomes on its membrane surface whereas the smooth ER does not. The rough ER is double membraned whereas the smooth ER is a single membraned organelle. The rough ER is present in the nucleus whereas the smooth ER is present in the cytoplasm. The rough ER is responsible for detoxification whereas smooth ER is responsible for protein synthesis.
Correct The rough ER has ribosomes on its membrane surface whereas the smooth ER does not is the correct answer. The lack of ribosomes is what makes the membranes appear "smooth". Both rough ER and smooth ER are single-membraned organelles. Both rough ER and smooth ER are present in the cytoplasm. Rough ER is responsible for protein synthesis whereas the smooth ER is responsible for the detoxification process.
How does a semipermeable membrane prevent the entry of toxic substances into a cell? By blocking the movement of any molecules Only through active diffusion of molecules across the membrane Through the passage of certain types of molecules or ions by passive diffusion By allowing all the molecules to diffuse easily across the membrane
Correct Through the passage of certain types of molecules or ions by passive diffusion is the correct answer. The cell membrane is semipermeable, made up of phospholipid bilayer, that allows the movement of only certain types of molecules (like nonpolar molecules), to cross the membrane easily by passive diffusion. It protects the cell from harmful substances by restricting their entry into the cell. The cell membrane does not allow the diffusion of all the molecules. The cell membrane does not block the movement of all molecules.
Exocytosis facilitates which of the following functions? Transport of material from the extracellular matrix to the intracellular matrix Transport of large material, including cells, into the cell Transport of water from the extracellular matrix to the intracellular matrix Transport of material from the intracellular matrix to the extracellular matrix
Correct Transport of material from the intracellular matrix to the extracellular matrix is the correct answer. Through exocytosis, cellular debris is moved out by the cell into the extracellular region. Large materials move into the cell by endocytosis. Water moves into the cell by osmosis. Various materials move into the cell by diffusion or active transport.
Which of the following statements correctly describes plant vacuoles? Vacuoles are a complex network of proteins that help in photosynthesis. Vacuoles are empty spaces that are filled with air required for cellular respiration. Vacuoles are empty spaces that exert pressure on the cell wall known as the turgor pressure. Vacuoles are small membrane vesicles that help in digesting the wastes from the body.
Correct Vacuoles are empty spaces that exert pressure on the cell wall known as the turgor pressure is the correct answer. Vacuoles are large empty spaces that cover almost 90% of the cytoplasm and maintain the turgor pressure. Turgor pressure is the force within the cell that pushes the cell membrane up against the cell wall. It plays an important role in a plant's growth, development, and overall functioning. Vacuoles also store various substances like salts, minerals, and proteins. Vacuoles usually store certain amounts of salts and minerals but do not help in any excretion process. Vacuoles do not contain air needed for cellular respiration. Vacuoles are not a complex group of proteins that help in photosynthesis. They are empty spaces in the cell, which act as a storage hub for certain substances.
