I hate school Flashcards
How does cell-cell recognition take place?
by binding to surface molecules
How does water diffuse across a membrane?
from low concentration to high concentration
what is tonicity?
the ability of a solution to cause a cell to gain or lose water
what’s an electrogenic pump?
a transport protein that generates voltage across a membrane
How do small molecules pass through the membrane?
by diffusion or transport proteins
How do large molecules pass through the membrane?
through vesicles
what is exocytosis?
when a vesicle spits out its contents
What is endocytosis?
When a cell takes in macromolecules
What plus what equals electrochemical gradient?
chemical force + electric force
What are the features of all cells?
plasma membrane, ribosomes, DNA, cytosol
What’s in animal cells that are not in plant cells?
lysosomes, centrioles, flagella
What is Cristae?
The folds in the inner membrane of the mitochondria
What is the mitochondrial matrix?
The space within the inner membrane that includes enzymes, DNA, and ribosomes.
What are amyloplasts?
in plant cells and stores starch
What’s a chromoplast?
like a chloroplast but produces yellow/orange pigments.
