cell

Lakukan tugas rumah & ujian kamu dengan baik sekarang menggunakan Quizwiz!

nucleolus characteristics-Image result for nucleolus characteristics The nucleolus is a round body located inside the nucleus of a eukaryotic cell. It is not surrounded by a membrane but sits in the nucleus. The nucleolus makes ribosomal subunits from proteins and ribosomal RNA, also known as rRNA.

jelly is not nucleolus

cell wall-a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.

cell wall. The definition of a cell wall is the protective coating for a plant cell. An example of a cell wall is the rigid cellulose outside the cell membrane of a plant.

chlorophyll-a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring.

chlorophyll. Any of a group of green pigments that capture light energy used as the energy source in photosynthesis and that are found in the chloroplasts of plants and other photosynthetic organisms such as cyanobacteria, especially

chromosomes-a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

chromosome. The definition of a chromosome is a thread-like structure of DNA (nucleic acids and proteins) that carries genes. The "X" or "Y" gene that determines whether you will be a boy or a girl is an example of a chromosome.

organ system-Image result for organ system The 11 organ systems of the body are the integumentary, muscular, skeletal, nervous, circulatory, lymphatic, respiratory, endocrine, urinary/excretory, reproductive and digestive.

circulatory system. respiratory system. digestive system. nervous system. reproductive system. leaf canopy.

cytoplasm-the material or protoplasm within a living cell, excluding the nucleus.

cytoplasm. Cytoplasm is the substance that fills living cells. The definition of cytoplasm is the clear, gel-like substance outside the nucleus of the cell of plants and animals. An example of cytoplasm is the substance that fills every living cell in our bodies.

Unicellular-(of protozoans, certain algae and spores, etc.) consisting of a single cell. (of an evolutionary or developmental stage) characterized by the formation or presence of a single cell or cells.

diatom,Brewer's yeast,Nostoc commune,etc...

cell membrane-the semipermeable membrane surrounding the cytoplasm of a cell.

examples-The most common example is the phospholipid bilayer cell membrane that surrounds every cell in our bodies. Another example of a selectively permeable membrane is the inner membranes of an egg. ... Phospholipids are molecules composed of a hydrophilic, or water-loving, head and a hydrophobic, or water-fearing, tail.

Image result for eukaryotic characteristicscourses.lumenlearning.com Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes. However, unlike prokaryotic cells, eukaryotic cells have: a membrane-bound nucleus. numerous membrane-bound organelles (including the endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria)

hair

organisms characteristics-1 Nutrition. Living things take in materials from their surroundings that they use for growth or to provide energy. ... 2 Respiration. ... 3 Movement. ... 4 Excretion. ... 5 Growth. 6 Reproduction. ... 7 Sensitivity.

rocks are not organisms

characteristics-a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

a basketball is non example

centrioles characteristics-A centriole is a small set of microtubules arranged in a specific way. There are nine groups of microtubules. When two centrioles are found next to each other, they are usually at right angles. The centrioles are found in pairs and move towards the poles (opposite ends) of the nucleus when it is time for cell division.

a book is a non example

organ characteristics-Organ, in biology, a group of tissues in a living organism that have been adapted to perform a specific function. In higher animals, organs are grouped into organ systems; e.g., the esophagus, stomach, and liver are organs of the digestive system.

a car isn't a organ

mitochondria-the outer mitochondrial membrane, the intermembrane space (the space between the outer and inner membranes), the inner mitochondrial membrane, the cristae space (formed by infoldings of the inner membrane), and. the matrix (space within the inner membrane).

a computer isn't a mitochondria

characteristics- Cytoplasm is the fluid where the cellular organelles are suspended. It fills up the spaces that are not occupied by the organelles. ... Cytosol makes up about 70% of the volume of the cell. It is composed of water, salts and organic molecules. ... Organelles mean "little organs", that are membrane bound.

a cup is a non example

characteristics-The primary functions of chromatin are 1) to package DNA into a more compact, denser shape, 2) to reinforce the DNA macromolecule to allow mitosis, 3) to prevent DNA damage, and 4) to control gene expression and DNA replication. The primary protein components of chromatin are histones that compact the DNA.

a non example is a jacket

characteristics-The space between the inner membrane and the thylakoid membrane is filled with stroma, a matrix containing dissolved enzymes, starch granules, and copies of the chloroplast genome. Chloroplasts circulate within plant cells. The green coloration comes from chlorophyll concentrated

a remote isn't an example

cell-the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.

A Eukaryotic cell has a membrane-bound nucleus. ... Bacteria are the only type of cells that are not eukaryotic, they are prokaryotic so they do not have DNA encased within a methe

cell wall characteristics-Cell wall is a characteristic feature to cells of plants, bacteria, fungi, algae and some archaea. It is located outside the cell membrane. The major function of the cell wall is to provide rigidity, tensile strength, structural support, protection against mechanical stress and infection.

A Wall is not a cell wall

The cell nucleus is a double membrane‐bound organelle that contains the genetic information of the cell packaged in the form of chromatin. The nuc leus is a characteristic feature of most eukaryotic cells.

A car isn't an example of a nucleus

The generally accepted parts of modern cell theory include: All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms.

A cell theory isn't water

Unicellular characteristics-A unicellular organism, also known as a single-celled organism, is an organism that consists of only one cell, unlike a multicellular organism that consists of more than one cell. ... The main groups of unicellular organisms are bacteria, archaea, protozoa, unicellular algae, and unicellular fungi.

A chair isn't a unicellular

chloroplast-(in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place.

A chloroplast is an organelle unique to plant cells that contains chlorophyll (which is what makes plants green) and is responsible for enabling photosynthesis to occur so that plants can convert sunlight into chemical energy.

Multicellular characteristics-Characteristic: Feature or trait indicating the typical or distinguishing attributes and qualities of a person, group, action, or thing. Multicellular Organism: Organism consisting of more than one cell. Specialization: The ability of cells in multicellular organisms to perform specific functions.

A mineral isn't multicellular

nucleus-a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material.

A model of an atom showing the nucleus. The nucleus is the center core of an atom that has a positive charge and that contains most of the atom's mass, or the central heart of an organization or group. An example of a nucleus is the center core of an atom.

organelle characteristics-7 characteristics of life. Order. ... Prokaryotic cell. -single celled organism. ... Eukaryotic cell. -part of larger organisms. ... Plant cell. -plasma membrane. ... Animal cell. -plasma membrane. ... plasma membrane. thin layer of protiens and lipids that acts as a selective barrier from the cell and its surrondings. ... nucleus. ... mitochondria.

A mountain isn't a organelle

Characteristics of nucleus membrane-Function of The Nuclear Envelope/Nuclear Membrane. The nuclear membrane, sometimes referred to as the nuclear envelope, is the membrane that encloses the nucleus. This bilayer membrane is made of lipids, and encases the genetic material in eukaryotic cells. The nuclear membrane is made up of a double lipid bilayer.

A nuclear membrane isn't a clock

golgi apparatus/complex-Golgi membrane protein interactions are responsible for its unique shape. These interactions generate the force that shapes this organelle. The Golgi apparatus is very polar. Membranes at one end of the stack differ in both composition and in thickness from those at the other end.

A pair of shoes is a non example

Characteristics- The smooth ER also regulates and releases calcium ions and processes toxins. It is described as 'smooth' to distinguish it from rough ER, which has ribosomes for protein synthesis on its surface. Each organelle in the cytoplasm of a cell is responsible for performing a certain function.

A rough Endoplasmic reticulum is a non example

prokaryotic-a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.

Examples of Prokaryotes. Prokaryotes are all single-celled organisms, most of which you know of as bacteria. For example, the famous (or infamous) Escherichia coli bacterium is a prokaryote, as is the streptococcus bacterium responsible for strep throat.

Multicellular-of an organism or part) having or consisting of many cells.

Here is a Volvox, a colonial algae. Volvox is one of several multicellular protists. Mycoprotists, or fungus-like protists, have characteristics of fungus cells. Examples: Water molds, which are unicellular, and cellular slime molds, which are unicellular and multicellular at different stages of their life cycle.

Golgi apparatus/complex-Image result for golgi apparatus golgi complex definitionbiology.tutorvista.com Golgi Apparatus - Packing Things Up. The Golgi apparatus or Golgi complex is found in most cells. It is another packaging organelle like the endoplasmic reticulum (ER). It was named after Camillo Golgi, an Italian biologist.

Image result for golgi apparatus golgi complex examples The Golgi apparatus or Golgi complex is found in most cells. It is another packaging organelle like the endoplasmic reticulum (ER). It was named after Camillo Golgi, an Italian biologist.

organisms-an individual animal, plant, or single-celled life form.

Image result for organisms examples Some of these organisms do live in large colonies, but each individual cell is a simple living organism. Let's look at some examples of unicellular organisms. Valonia ventricosa is a protist. It is a unicellular algae and is one of the largest unicellular organisms that exists.

characteristics of a cell-The nature and function of cells. The molecules of cells. The cell membrane. Chemical composition and membrane structure. Internal membranes. The nucleus. The mitochondrion and the chloroplast. The cytoskeleton. The cell matrix and cell-to-cell communication. Cell division and grow

Non-cellular life refers to organisms, such as viruses, that exist without any cells

characteristics of tissue-Characteristics of Epithelial Layers. Epithelial tissue is composed of cells laid out in sheets with strong cell-to-cell attachments. ... One side of the epithelial cell is oriented towards the surface of the tissue, body cavity, or external environment and the other surface is joined to a basement membrane.

Not all types of CT are fibrous. Examples of non-fibrous CT include adipose tissue and blood. ... Both the ground substance and proteins (fibers) create the matrix for CT. Connective tissues are derived from the mesenchyme.

centrioles-a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.

Organizing Chromosomes. Every animal-like cell has two small organelles called centrioles. They are there to help the cell when it comes time to divide. They are put to work in both the process of mitosis and the process of meiosis.

chromatin-the material of which the chromosomes of organisms other than bacteria (i.e., eukaryotes) are composed. It consists of protein, RNA, and DNA.

The DNA + histone = chromatin definition: The DNA double helix in the cell nucleus is packaged by special proteins termed histones. The formed protein/DNA complex is called chromatin. The basic structural unit of chromatin is the nucleosome.

organ-a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.

The body's functions are conducted by organs. Each organ is a recognizable structure (for example, the heart, lungs, liver, eyes, and stomach) that performs specific functions. An organ is made of several types of tissue and therefore several types of cells.

cell theory-The three tenets to the cell theory are as described below: All living organisms are composed of one or more cells. ... The cell is the basic unit of structure and organization in organisms. Cells arise from pre-existing cells.

The cell theory states that every single living organism is made of basic units or components called cells. Cells are autonomou

nuclear membrane-A nuclear membrane, also known as the nucleolemma or karyotheca, is the lipid bilayer membrane which surrounds the genetic material and nucleolus in eukaryotic cells.

The definition of a nuclear membrane is a double-layered lining that encloses a cell nucleus and allows certain molecules to pass through. An example of a nuclear membrane is inner and outer membrane of a cell.

organelle -any of a number of organized or specialized structures within a living cell.

The nucleus, the mitochondrion, the chloroplast, the Golgi apparatus, the lysosome, and the endoplasmic reticulum are all examples of organelles. Some organelles, such as mitochondria and chloroplasts, have their own genome (genetic material) separate from that found in the nucleus of the cell.

Characteristics- The membranes that make up the rough endoplasmic reticulum are composed of lipids just like the membrane that surrounds the entire cell itself. The surface of rough endoplasmic reticulum is dotted with other organelles known as ribosomes. Ribosomes are cellular organelles composed of two subunits that produce proteins.

The rough ER, studded with millions of membrane bound ribosomes, is involved with the production, folding, quality control and despatch of some proteins. Smooth ER is largely associated with lipid (fat) manufacture and metabolism and steroid production hormone production. It also has a detoxification function.

Smooth Endoplasmic reticulum- a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials. Origin of endoplasmic reticulum.

The rough ER, studded with millions of membrane bound ribosomes, is involved with the production, folding, quality control and despatch of some proteins. Smooth ER is largely associated with lipid (fat) manufacture and metabolism and steroid production hormone production. It also has a detoxification function.

rough endoplasmic reticulum- a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials. Origin of endoplasmic reticulum.

The rough ER, studded with millions of membrane bound ribosomes, is involved with the production, folding, quality control and despatch of some proteins. Smooth ER is largely associated with lipid (fat) manufacture and metabolism and steroid production hormone production. It also has a detoxification function.

Chlorophyll is vital for photosynthesis, which allows plants to absorb energy from light. Chlorophyll molecules are specifically arranged in and around photosystems that are embedded in the thylakoid membranes of chloroplasts. In these complexes, chlorophyll serves two primary functions.

a tv is a non example

eukaryotic-Characteristic: Feature or trait indicating the typical or distinguishing attributes and qualities of a person, group, action, or thing. Multicellular Organism: Organism consisting of more than one cell. Specialization: The ability of cells in multicellular organisms to perform specific functions.

bacteria

Prokaryotes lack an organized nucleus and other membrane-bound organelles. Prokaryotic DNA is found in a central part of the cell called the nucleoid. The cell wall of a prokaryote acts as an extra layer of protection, helps maintain cell shape, and prevents dehydration.

marble is not prokaryotic

tissue-any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.

muscle, epithelial, connective and nervous. Each is made of specialized cells that are grouped together according to structure and function. Muscle is found throughout the body and even includes organs such as the heart. Our outer layer of skin is epithelial tissue.

nucleolus-a small dense spherical structure in the nucleus of a cell during interphase.

nucleolus. 1845, from Latin nucleolus, literally "a little nut," diminutive of nucleus (see nucleus). A small, typically round granular body composed of protein and RNA in the nucleus of a cell, usually associated with a specific chromosomal site and involved in ribosomal RNA synthesis and the formation of ribosomes.

cell membrane characteristics-Many molecules cross the cell membrane by diffusion and osmosis. The fundamental structure of the membrane is phospho lipid bilayer and it forms a stable barrier between two aqueous compartments. The proteins present in the plasma membrane, act as pumps, channels, receptors, enzymes or structural components.

soap

mitochondria- an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers (cristae).

the "power plants" of both animal and plant cells -- and chloroplasts -- photosynthesis centers found only in plants -- are both examples of specialized eukaryotic cell compartments. These cell compartments are referred to as organelles.

characteristics or organ system-The 11 organ systems of the body are the integumentary, muscular, skeletal, nervous, circulatory, lymphatic, respiratory, endocrine, urinary/excretory, reproductive and digestive. Although each of your 11 organ systems has a unique function, each organ system also depends, directly or indirectly, on all the others.

viruses don't have a organ system


Set pelajaran terkait

Prectice Questions NDEE RENAL ADAPTIVE QUESTIONS N3

View Set

Ap Human Geography Chapter 7 Key Issues 3+4

View Set

6 Managing in the Global Environment exercise

View Set

UNIT 20: PUNK, NEW WAVE & ALTERNATIVE ROCK

View Set