Biology ch7B - Cell Membranes, Transport, & Specialization

Question 1

Movement of particles from an area of high concentration to an area of lower concentration is:

Accepted Answer

diffusion

Question 2

Water leaves, cell shrinks; higher solute concentration outside cell than inside = ? solution

Accepted Answer

hypertonic

Question 3

What kind of solution is the red blood cell on the left in?

Accepted Answer

hypotonic

Question 4

Requires energy; vacuole fuses with membrane, contents forced out of cell = ?

Accepted Answer

exocytosis

Question 5

Water enters, cell swells; lower solute concentration outside the cell than inside = __solution

Accepted Answer

hypotonic

Question 6

The tonicity of this cell is...

Accepted Answer

isotonic

Question 7

Cell specialization allows cells to...

Accepted Answer

perform different functions.

Question 8

What is structure "D"?

Accepted Answer

a protein

Question 9

What kind of solution is the red blood cell on the right in?

Accepted Answer

hypertonic

Question 10

What is the correct order for cell specialization?

Accepted Answer

cells > tissues > organs > organ systems

Question 11

Which describes a group of similar cells working together in the body?

Accepted Answer

a tissue

Question 12

The stuff that is dissolved is the _________.

Accepted Answer

solute

Question 13

Active transport

Accepted Answer

all of the answers are correct

Question 14

An organ system is a group of organs that work together to accomplish a common purpose

Accepted Answer

True

Question 15

The tonicity of this cell is...

Accepted Answer

hypertonic

Question 16

The basic structure of the cell membrane is

Accepted Answer

a phospholipid bilayer.

Question 17

__________ is the diffusion of water through a semipermeable membrane.

Accepted Answer

osmosis

Question 18

What molecules are imbedded in the bilayer?

Accepted Answer

proteins

Question 19

Equilibrium is reached

Accepted Answer

when particles are evenly distributed through the space.

Question 20

The primary function of the cell membrane is

Accepted Answer

to control what moves in and out of the cell.

Question 21

The tonicity of this cell is...

Accepted Answer

hypotonic

Question 22

Passive transport

Accepted Answer

doesn't require energy.

Question 23

What is concentration?

Accepted Answer

amount of things in a given area

Question 24

All body systems work together to maintain homeostasis

Accepted Answer

True

Question 25

What kind of transport doesn't require the use of energy to move materials across the membrane?

Accepted Answer

all of these don't require the cell to use energy

Question 26

"A" is

Accepted Answer

a hydrophilic phosphate "head"

Question 27

A cell is in a ____solution when: size doesn't change; water goes in and out at the same rate

Accepted Answer

isotonic

Question 28

The stuff that does the dissolving is the __________.

Accepted Answer

solvent

Question 29

Requires energy; materials enter pockets in cell membrane, then forms vacuole in cytoplasm = ?

Accepted Answer

endocytosis

Question 30

What is homeostasis?

Accepted Answer

The ability to maintain a constant internal environment

Question 31

Which of these is selectively permeable?

Accepted Answer

all of these are selectively permeable

Question 32

What kind of solution is the red blood cell in the middle in?

Accepted Answer

isotonic

Question 33

In a cell a signaling molecule binds to a

Accepted Answer

receptor protein

Biology ch7B - Cell Membranes, Transport, & Specialization

Questions 33

Biology ch7B - Cell Membranes, Transport, & Specialization

Questions 33