Unit 2: Cells- transport proteins

Question 1

function of transport proteins in cell membrane

Answer 1

help hydrophilic molecules cross membrane using ATP

Question 2

2 types of transport proteins

Answer 2

channel proteins + aquaporins

Question 3

channel proteins

Answer 3

have a hydrophilic channel that allows polar molecules to cross the membrane

Question 4

aquaporins

Answer 4

get water across the cell membrane more efficiently

Question 5

facilitated diffusion

Answer 5

• diffusion with help
• still passive transport
• globular proteins = doors for specific molecules to go through membrane