Unit 2 Test (study vocab)

Question 1

Cytolysis/Lyse

Answer 1

swelling and bursting of ANIMAL CELLS when water enters as the cell sits in a hypotonic solution

Question 2

Osmotic Pressure

Answer 2

pressure exerted on the cell membrane of a cell/vacuole from the water. usually used to describe plant cell water pressure

Question 3

Turgor Pressure/ Turgid

Answer 3

pressure placed on a plant’s cell wall as a result of the amount of water in the cell

Question 4

Plasmolysis

Answer 4

when a cell shrinks inside its cell wall while the cell wall remains intact. this occurs when plant cells are exposed to hypertonic solutions

Question 5

Sodium-Potassium Pump

Answer 5

a transport protein in the membrane (animal cells). it actively transports 3 sodium (na+) OUT of the cell and 2 potassium (k) INTO the cell. Requires ATP

Question 6

Receptor-mediated endocytosis

Answer 6

the uptake of specific molecules based on a cell’s receptor proteins

Question 7

Active Transport

Answer 7

movement of a substance across the membrane. goes against its concentration gradient, so it goes LOW to HIGH. goes through specific transport proteins, and requires ATP

Question 8

Concentration Gradient

Answer 8

a difference in the concentration of a substance across a distance

Question 9

Pinocytosis

Answer 9

type of endocytosis. the cell ingests extracellular fluid and its dissolved solutes (“cell-drinking”)

Question 10

Prabhas’s birthday?

Answer 10

oct 23rd, 1979

Question 11

Pooja Hegde’s birthday?

Answer 11

oct 13th, 1990