Question 1

The secretion of materials, such as hormones and neurotransmitters, from inside of a cell to the outside is ___________.

diffusion

exocytosis

pinocytosis

intracellular transport

endocytosis

Question 2

Cells are most stable in _________ environments?

hypotonic

hypertonic

isotonic

Question 3

Select one answer.

A cell will uptake large molecules from the extracellular fluid by the process of __________.

diffusion

pinocytosis

exocytosis

endocytosis

active transport

Question 4

Select one answer.


Sodium ions are more highly concentrated outside the cell, in the extracellular fluid. Which process would be used to return any sodium ions that leaked into the cell back to the extracellular fluid?

active transport

osmosis

simple diffusion

exocytosis

facilitated diffusion

Question 5

Select one answer.


An animal cell placed in a hypotonic solution will __________.

burst

shrivel

stay the same

Question 6

Select one answer.


A substance, such as glucose, will enter a cell following its concentration gradient, from the blood and tissues, through the membrane, and into the cytoplasm. Such movement of glucose has a maximal capacity, does not require energy, and is specific only for glucose. How is the entry of glucose into the cell occurring?

By facilitated diffusion

By simple diffusion

By active transport

By osmosis

By endocytosis

Question 7

Select one answer.


Increasing the concentration gradient:

Does not alter the rate of diffusion

Decreases the rate of diffusion

Increases the rate of diffusion

Question 8

Select one answer.


Active transport could also be called facilitated diffusion.

True

False

Question 9

Select one answer.



An immune cell would engulf a pathogenic cell using the process of: ________________ ?

endocytosis

passive transport

exocytosis

active transport

Question 10

Select one answer.

Protein transporters that move materials against a concentration gradient are active transport proteins.

True

False