4.2 Flashcards
(5 cards)
1
Q
What is simple diffusion goof for?
A
Dissolved gasses
Small uncharged molecules
Hydrophobic molecules
2
Q
What is facilitated diffusion good for?
A
Anything charged
Larger hydrophilic molecules
3
Q
What is secondary active transport?
A
ATP is used as the energy source to create one concentration gradient
This concentration then becomes the energy source to move another solute against the concentration gradient
4
Q
What do gap junctions allow for?
A
Passage of small molecules and ions between many animal cells
5
Q
What are plasmodesmata?
A
Tubes through the cell walls
Lined with cell membrane
Connect most cells in a plant
