Transport Across Cell Membranes Flashcards
1
Q
The cell membrane consists of “…” and “…”
A
“phospholipids” “proteins”
2
Q
The cell membrane is…
A
Selectively permeable.
3
Q
When a substance moves down a concentration gradient and doesn’t require energy it is called…
A
Passive transport.
4
Q
Two types of passive mechanisms of transporting molecules across membranes are…
A
Diffusion and osmosis.
5
Q
The movement of water molecules from an area of higher water concentration to an area of lower water concentration through a selectively permeable membrane is…
A
Osmosis.
6
Q
Animal cells can “..” or “…”
A
“Burst” or “shrink”
7
Q
Plant cells can become “…” or “…” in different situations.
A
“Turgid” or “plasmolysed”
8
Q
Active transport requires energy for membrane proteins to move molecules and ions “…”
A
“Against the concentration gradient”
