Biology 1010 - Cell Membranes & Transport (Chapter 4)

Question 1

Bulk materials enter the cell through the cell membrane and are surrounded by a vesicle during __________.

Accepted Answer

endocytosis

Question 2

Movement of molecules from an area of high concentration to an area of low concentration is called __________.

Accepted Answer

diffusion

Question 3

Why do plant cells not rupture in a hypotonic solution? (ET)

Accepted Answer

Plants have cell walls.

Question 4

The primary structure of a cell membrane is __________.

Accepted Answer

a phospholipid bilayer

Question 5

The red blood cell on the left is in what kind of solution? (Water is entering the cell.)

Accepted Answer

Hypotonic

Question 6

Facilitated diffusion __________. (ET)

Accepted Answer

does not require energy

Question 7

Active transport __________. (ET)

Accepted Answer

All of the answers are correct.

Question 8

The red blood cell in the middle is in what kind of solution? (Water is entering and leaving at the same rate.)

Accepted Answer

Isotonic

Question 9

A vesicle fuses with the cell membrane and bulk contents leave a cell during __________.

Accepted Answer

exocytosis

Question 10

Which of these does NOT require energy to move materials across a membrane?

Accepted Answer

None of these require energy.

Question 11

The Fluid Mosaic Model includes what types of molecules imbedded in the phospholipid bilayer of a cell membrane?

Accepted Answer

Proteins

Question 12

The red blood cell on the right is in what kind of solution? (Water is leaving the cell.)

Accepted Answer

Hypertonic

Question 13

__________ is the diffusion of water through a selectively permeable membrane.

Accepted Answer

Osmosis

Questions 13