active transport

Question 1

step 1

Answer 1

transport through carrier proteins spanning through the cell membrane

Question 1

active transport

Answer 1

movement of substances from a low concentration to a high concentration using metabolic energy and a carrier protein

Question 2

step 2

Answer 2

molecules bind to a receptor complementary in shape on the protein

Question 3

step 3

Answer 3

ATP binds to carrier protein from inside of the cell and is hydrolysed into ADP + pi

Question 4

step 4

Answer 4

this causes the carrier protein to change shape and release molecules on the other side

Question 5

step 5

Answer 5

phosphate ion is released and the protein returns to its original shape