Homeostasis and Cell Transport

Question 1

__________ involves the release of materials outside of a cell using a vesicle.

Accepted Answer

Exocytosis

Question 2

When the concentration of molecules is evenly dispersed, it is said to have reached equilibrium

Accepted Answer

True

Question 3

______________ is the maintenance of a constant environment.

Accepted Answer

Homeostasis

Question 4

Movement of molecules form an area of higher concentration to an area of lower concentration.

Accepted Answer

Diffusion

Question 5

Where will water go when a cell is in a hypertonic solution?

Accepted Answer

Out of the cell

Question 6

When the concentration of solutes outside of the cell is lower than inside, water will...

Accepted Answer

Move into the cell

Question 7

The movement of water across a semi-permeable membrane.

Accepted Answer

Osmosis

Question 8

Active transport requires energy.

Accepted Answer

True

Question 9

Facilitated diffusion involves the use of _______ to help move molecules in or out of the cell.

Accepted Answer

Carrier proteins

Question 10

Passive transport requires energy.

Accepted Answer

False

Question 11

A sodium-potassium pump transports...

Accepted Answer

3 Na+ ions out and 2 K+ ions in

Question 12

The difference in concentration between two areas is called a _________________.

Accepted Answer

Concentration gradient

Question 13

___________ is the movement of large molecules into the cell.

Accepted Answer

Endocytosis

Question 14

Which of the following is NOT true of active transport.

Accepted Answer

Moves material from high to low concentration

Question 15

When the solution outside the cell is isotonic, water will _____________.

Accepted Answer

Move in and out

Questions 15