7.4 Rec. Lecture Cards Flashcards
Why is the cytoplasm so important for the cell?
It creates a medium for the organelles to be in as well as being the medium that allows the transport of most materials within the cell.
How does the cytoskeleton provide support of the cell and keep organelles anchored?
It keeps the organelles anchored by using protein fibers to connect them to the plasma membrane. It also provides support by making a web of the fibers around the entire plasma membrane.
What are the components of the cytoskeleton and what do they do?
Microtubules for the skeleton of the cell and help transport materials. Microfilaments give the cell shape and allow the cell to move.
Why is the nucleus so important?
It contains and gives out all of the instructions on how the cell will function.
Why are ribosomes not membrane bound?
They produce proteins that are usually not used in places other than the cytoplasm.
Why does the endoplasmic reticulum have so many folds?
So they can synthesize proteins and lipids faster due to the larger surface area.
How does the golgi apparatus package proteins?
It takes the proteins and wraps them in a membrane so that they fuse into the plasma membrane and release the proteins into the open environment.
Why do cell walls exist on plant cells?
Cell walls exist to protect the cells of a plant better than just a membrane normally would.
What organelles do plant cells have that animal cells don”t?
Chloroplasts, Vacuoles, and Cell Walls.
Why do vacuoles need to contain the molecules that they do?
They contain them so that they cant get in the way or contaminate any of the delicate processes in the cell.
