Font size
WorksheetsTransport
Total questions: 8
Worksheet time: 20mins
What is the movement of a substance from an area of higher concentration to an area of lower concentration?
(a)
When a substance diffuses through the lipid portion of a membrane it is called ...
(a)
Which three factors are needed for simple diffusion? (the molecule must be..)
small
uncharged
hydrophobic
large
When a substance diffuses through a membrane via a transmembrane protein (a channel or carrier)
(a)
Additional energy is used at the membrane to move a substance against its concentration gradient is...
(a)
What uses primary active transport to indirectly move a substance against its concentration gradient?
(a)
The sodium potassium pump is more specifically called an exchange pump that...
moves water across a membrane from an area of lower solute concentration to an area of higher solute concentration
actively moves one substance in one direction and another substance in the opposite direction
moves materials into or out of a cell via vesicles
move a substance against its concentration gradient
This pump moves ______ ions extracellularly and ______ ions intracellularly using one molecule of ATP
1. three sodium
2. two potassium
1. four sodium
2. two potassium
1. two potassium
3. three sodium
1. four potassium
2. two sodium
