Transport Across The Plasma Membrane

Question 0

Define Term: active transport across cell membrane

Answer 0

Active processes use the energy contained in ATP.

Question 1

Define Term: Passive movement across plasma membrane

Answer 1

Passive processes do not require the use of energy (ATP)

Question 2

Define Term: solvent

Answer 2

Dissolving medium. I.e. Water

Question 3

Define Term: Solute

Answer 3

Solutes are the substances dissolved in the solvent

Question 4

Define Term: Solution

Answer 4

A solution consists of solutes dissolved in a solvent.

Question 5

Define Term: Concentration Gradient

Answer 5

A concentration gradient is said to exist if the concentration of a particular solute is higher on one side of the plasma membrane and lower on the other side of the plasma membrane.

Question 6

Define Term: Hypotonic

Answer 6

A hypotonic solution has a relatively low solute concentration (low in relation to x)

Question 7

Define Term: Hypertonic

Answer 7

A hypertonic solution has a relatively high solute concentration (high compared to x)

Question 8

Define Term: Isotonic

Answer 8

Two solutions are said to be isotonic when they have an equal concentration of solutes.

Question 9

Define term: Osmosis

Answer 9

Osmosis is the movement of water molecules by diffusion across a semi-permeable membrane. During osmosis, water moves from a hypotonic solution to a hypertonic solution until equilibrium is reached.

Question 10

Define term: crenate

Answer 10

Become shoveled with spiked edges. When blood cells are put in a hypertonic solution and the water leaves the cell.

Question 11

Define Term: hemolysis

Answer 11

When a blood cell swells and may even burst after gaining a significant amount of water through osmosis via being placed into a hypotonic solution.