Cellular Transport

Question 1

What is passive transport?

Answer 1

moves molecules through plasma membrane from areas of high concentration to low

Question 2

What are the 3 types of passive transport?

Answer 2

Diffusion, osmosis, and facilitated diffusion

Question 3

What is diffusion?

Answer 3

movement of particles through plasma membrane from areas of high concentration to low

Question 4

What is the rate of diffusion affected by?

Answer 4

temperature, size, pressure, concentration

Question 5

What is concentration gradient?

Answer 5

difference of concentration from one place to another

Question 6

What is osmosis?

Answer 6

diffusion of water from areas of high concentration to areas of low

Question 7

What is facilitated diffusion?

Answer 7

diffusion of molecules through transport proteins from areas of high concentration to low

Question 8

What are the two typed of transport proteins?

Answer 8

channel proteins and carrier proteins

Question 9

What are channel proteins?

Answer 9

open and close to let molecules through

Question 10

What are the carrier proteins?

Answer 10

change shape to let through molecules

Question 11

What are the three types of solutions?

Answer 11

Isotonic, hypotonic, and hypertonic

Question 12

What are isotonic solutions?

Answer 12

If a cell is in a solution in which there is equal amount of water and solute, the solution is isotonic

Question 13

What are hypotonic solutions?

Answer 13

If a cell is in a solution that has less solute than the cell, the solution is said to be hypotonic

Question 14

What is a rule for hypotonic solutions?

Answer 14

If too much water diffuses into the cell, the cell will burst. But this rule does not apply to plant cells because of their vacuoles.

Question 15

What are hypertonic solutions?

Answer 15

If a cell is in a solution that has more solute than the cell, it is said to be a hypertonic solution

Question 16

What is a rule for hypertonic solutions?

Answer 16

The water will flow outside the cell causing it to shrink or even die. But this rule does not apply to plant cells as the water will come from the central vacuole causing the cell to wilt

Question 17

What is active transport?

Answer 17

movement of particles from areas of low concentration to high

Question 18

What energy does active transport use?

Answer 18

ATP - Adenine TriPhosphate

Question 19

What are the three types of active transport?

Answer 19

Sodium potassium pump, exocytosis, and endocytosis