Active Transport And Osmosis

Question 1

What are aquapourins

Answer 1

Proteins embedded in the membrane that regulate the flow of water (osmosis)

Question 2

What are 4 factors that influence the movement of water in diffusion

Answer 2

-concentration gradient
-the presence of aquaporins
-pressure
-the amount of water present in the cytoplasm and exterior environment

Question 3

What is active transport

Answer 3

The movement of molecules or ions into or out of a cell from a region of low concentration to high concentration using ATP and carrier proteins

Question 4

What is step one of active transport

Answer 4

Molecule or ion binds to the specific receptor sites on the carrier protein

Question 5

Step 2 of active transport

Answer 5

ATP binds to the carrier protein causing hydrolysis

Question 6

Step 3 of active transport

Answer 6

Protein changes shape in molecule/ion is released inside

Question 7

Step 4 of active transport

Answer 7

Phosphate is released from the protein, causing the protein to return to its original shape phosphate, then recombines ATP and ADP in respiration