Cell function
what is cellular respiration
the process of converting glucose or sugar molecules into a usable form of energy for the cell
Which ER has ribosomes attached to it?
the rough ER
heterotrophs cannot make-
their own food
Inside the chloroplasts, there are large stacks of other membranes called
thylakoids
What is the function of the smooth ER?
to make lipids that will be used in the cell membrane
Lysosomes are filled with-
very strong digestive enzymes
Plants have large, round vacuoles they primarily use for-
water storage
What may the vacuole store
water, salts, proteins, and carbohydrates
A cell is divided into-
2 parts
What are chromosomes made of?
DNA
What is the purpose of the mitochondria
cellular respiration
Which of the following structures can differentiate between a plant and animal cell?
chloroplast
Which organelle is the internal membrane system of a cell?
endoplasmic reticulum
What does the endoplasmic reticulum connect?
connects the nuclear membrane to the cell membrane
heterotrophs are-
consumers
The folds on the inner membrane in mitochondria are known as
cristae
What happens when the vacuole is filled with water
it creates turgor pressure to give strength and support to the cell. This allows the plant to support heavy structures like flowers and leaves
Which organelle helps clean up or destroy any debris that might build up inside the cell
lysosomes
Structures never found in plant cells-
lysosomes, centrioles, and flagella
Autotrophs can-
make their own food
What are the two types if fibers found in the cytoskeleton
micro filament and microtubules
Both plant and animal cells need to produce energy for cellular functions. In both cell types, this function is carried out by the-
mitochondria
Microfilaments also helps cell to-
move. they can assemble and diassemble rapidly causing movement
What is the cytoskeleton also involved in
movement
Autotrophs don't-
need to get food from outside sources
The nucleus is surrounded by a-
nuclear membrane
Chloroplasts are surrounded by an-
outer and an inner membrane
structures never found in animal cells
plastids(chloroplasts) cell wall and central vacuole
Which organelle regulates what enters and exits the cell
the cell membrane
which organelle is made mostly of lipids and proteins
the cell membrane
which organelle separates 1 cell from another
the cell membrane
What is the nucleus
the control center
the organelles of a cell do not float freely in the cytoplasm
the cytoskeleton
This systm of membranes is so extensive throughout the cell that is accounts for more than half the total membrane in a cell
the endoplasmic reticulum
Which organelle modify,sort, and package the proteins that have arrived from the ER
the golgi apparatus
What is the cell membrane also called
the plasma membrane
What is the mitochondria
the powerhouse of the cell
Which ER has no ribosomes
the smooth ER
Which organelle has a function of digestion of carbohydrates, proteins, and lipids to small molecules that can be used by the rest of the cell
Lysosomes
Which of the following lists structures found in both plant and animal cells?
Nucleus, mitochondria, vacuoles, cell membrane
What are the most numerous of the cell's organelles
Ribosomes
What is the nuclear membrane?
a double membrane that is dotted with thousands of pores
What is the cytoskeleton
a network of protein tubes and fibers that help the cell maintain its shape
What is a chloroplast similar to-
a solar power plant
What is a vacuole
a storage area in the cell
what is the cell wall?
a supporting structure found in the cells of plants and fungi
What are lysosomes surrounded by
a thick membrane because the cell would be destroyed if the enzymes were released
Proteins that were produced in the rough Er now move to the-
Golgi apparatus
What is the control center of the cell?
The nucleus
What is a large central vacuole
a very large vacuole found in mature plant cells
Examples of autotrophs
all green plants, some protists, and some bacteria
What does the nucleus contain?
all of the cell's DNA
What do the pores in the nuclear membrane allow?
allows materials to move in and out of the nucleus
cells must have-
an internal framework and support system to give shape and organization to a cell
Examples of heterotrophs
anything that falls into plant and fungi category
The cell structure that regulates the transfer of material in and out of the cell is the-
cell membrane
What are the functions of microtubules
cell shape, cell division-separate chromosomes, and form cilia and flagella
The cell wall is composed mostly of:
cellulose, tough carbohydrate function
Which organelle absorbs energy from the sun and converts it to chemical energy of a molecule of sugar
chloroplasts
The nucleus is a round, double walled structure often found in the center of plant and animal cells. Its function is to-
contain genetic material
The thick, jelly-like substance that holds cell organelles in place inside the cell is the-
cytoplasm
Lysosomes are responsible for
destroying old organelles that no longer can do their job
Chloroplasts are oval discs with green chlorophyll found in plant cells. Animal cells lack chloroplasts because they-
do no perform photosynthesis
microfilaments form-
extensive frameworks inside the cell to give support to the cell. They help to bear mechanical stress
Where are the ribosomes found in the cell?
free floating in cytoplasm or attached to the ER
Where do heterotrophs get their food from?
from outside sources
What are the two functions of chromosomes?
genetic information and cell control
What is the nucleus the carrier of?
genetic information because this is where the genes are found
Each organelle-
has a specific job or function
Plants have a rigid outer layer called the cell wall. The function of the cell wall is to-
help the cell maintain its shape under the changing water pressure
Microtubules are-
hollow structures
how many mitochondria are found in a cell
hundreds or thousands
Ribosomes are the site-
if protein synthesis
What is the cristae in a mitochondria
in crease surface area for respiration
Where are chloroplasts found
in plant cells and other unicellular organisms that do photosynthesis
Where does photosynthesis take place
in the chloroplasts
Mitochondria have an-
inner membrane and an outer membrane
What is the function of the nucleolus?
manufactures the ribosomes
What can a vacuole also storage
organic compounds but they mostly store water
What is the cytoplasm
portion outside of the nucleus
Autotrophs are-
producers
the main function of the cell wall is to-
provide support and protection for the cell
All proteins of cell are made by the-
ribosomes
microfilaments are-
solid threadlike protein structures
What are organelles?
specialized structure found within a cell
The golgi apparatus appears as a-
stack of loosely connected membranes
Vacuoles are round organelles found in both plant and animal cells. Their main function is to-
store water, waste, and nutrients for the cell
The proteins in the golgi apparatus will either be-
stored in the cell or be secreted to the outside of the cell
which organelle maintains the shape of the cell
the cell membrane
What does the thylakoids contain
the green pigment chlorophyll which is needed for photosynthesis
The DNA has-
the instructions for making proteins
the rough ER is involved in-
the making of proteins
Which organelle controls activities
the nucleus
Which organelle controls reproduction
the nucleus
which organelle decides which/ when to make proteins(ribosomes)
the nucleus
What are the two parts of a cell?
the nucleus and cytoplasm