3.2 Cell Organelles
Terms in this set (61)
Specialized structures that work together inside a cell are called....
What is the term for the jelly-like substance that is contained inside the cell membrane?
Modifies, packages and transports proteins.
What is the function of the Golgi apparatus?
It is a dense region where tiny organelles (ribosomes) essential for making proteins are assembled.
What is the function of the nucleolus?
They shape, protect and support individual cells and the entire organism.
What is the main function of a cell wall?
It supports and shapes the cell
What are the functions of the cytoskeleton?
Which organelle can be found in the cytoplasm and on the surface of the endoplasmic reticulum?
Which organelle is a membrane-bound sac that divides material from the rest of the cell and transports material around the cell?
Which organelle contains digestive enzymes that break down damaged cell parts, debris and invading bacteria and viruses?
The organelle involved in defending a cell against viruses is the lysosomes.
Which organelles are involved in defending a cell against viruses?
Which organelle stores water, salts, carbohydrates and wastes in plant cells ( be able to ID it!!!)
Which organelle manufactures proteins?
both inside and on the surface: ribosomes
Which organelles are present both inside the nucleus and on the surface of the E.R.?
Which organelle is the "powerhouse of the cell?" (be able to draw a pic of it and identify it)
Which cell structure contains the cell's genetic material and controls the cell's activities?
They are the cells nuclear envelope, nuclear pores, nucleolus, ribosomes.
What are the components of the nucleus and what is the function of each?
Surrounds the DNA by a double membrane.
What is the nuclear envelope?
Site where ribosomes are assembled to form proteins and RNA.
What is the nucleolus?
They link together with amino acids to make proteins.
What are ribosomes?
They are used for transportation and have holes.
What are nuclear pores?
Trace the path of a protein in the cell from start to finish (being released from the cell).
chloroplasts and cell walls
Which organelles/structures would expect to find only in plants?
chloroplasts and cell walls an big vacuole are present in plant cells but not in animal cells.
What are the main differences between plant and animal cells?
mitochondria and chloroplasts have their own DNA and ribosomes.
What characteristics do mitochondria and chloroplasts share?
They only work with one specific substrate.
There are many different enzymes located in the cytoplasm of a single cell. How is a specific enzyme able to catalyze a specific reaction?
Cells have a division of labor and contain special structures that work together.
How do cells work together to carry out life processes?
Eukaryotic cells are highly organized....
...cell cytoskeleton (a network of protein fibers)
The organelles are anchored in the cytoplasm by the....
long hollow tubes....act as tracks for organelle movement...also add in cell division.
What are Microtubules?
tiny threads that enable cells to move, (muscle contraction )
What is microfilament?
Fluid that is known as cytosol and is mostly water.
What is cytoplasm?
most of the cell devoted to making proteins.
Organelles that are involved in protein production have...
amino acids and have unique characteristics (size, polarity, acidity)
What are proteins made of?
Since proteins carry out critical function, they need to be made..
The nucleus stores the....
The instructions for making proteins.
What does the DNA contain?
1) DNA must be protected
2) Info must be available
What are the 2 major demands of the nucleus?
Most nuclei contain a small spherical area called...
...are tiny organelles that link together amino acids together to make proteins
E.R. (endoplasmic reticulum)
What is an interconnected network of thin folded membranes?
modifies proteins and cellular pathways
What is the role of the ER?
Covered with ribosomes and make the bulk of the proteins and modifies them before export.
Makes lipids and breakdowns toxins
processing, packaging, and secreting organelle of the cell
What is the role of the Golgi apparatus?
by modifying proteins
How does the Golgi apparatus work with the E.R.
Small membrane-bound sacs that divide materials in the cytoplasm and transport materials within the cell.
What are vesicles?
Powerhouse of the cell (energy)
Processes your food energy into chemical energy your cells can use
to supply energy to the cell
What is the roll of Mitochondria
Outer - barrier from cytosol
Inner - membrane is folded to increase surface area (cristae)
What are the names of the mitochondria membranes?
Mitochondria cells have their own DNA and....
Cells that require more energy contain the....
......90% of cell
In plants they contain on very large vacuole which is up to ....
..Lysosomes (somes = body) (Lyse = to break up / destroy)
Common in animal, fungi, and protests...not usually in plants
To produce microtubules
What is the role of the Centrosome?
These are short microtubules that help with cell division and In animal cells it contains 2 small structures called...
cilia and flagella
Centrioles can also form...
....outside of the cell membrane
The cell wall lies...
...algae, plants and bacteria
Cell walls are found in ...
A 2 membrane system that contains ribosomes and DNA
(Photosynthesis reactions-----solar entergy ...turns to food energy)
Chloroplasts contain membrane stacks called...