Chapter 3

Question 1

Two major types of molecules that make up the plasma membrane

Answer 1

Phospholipid and protein

Question 2

Which of the phospholipid and protein make up the majority of the membranes framework

Answer 2

Phospholipids

Question 3

Integral

Answer 3

Extend across the plasma membrane

Question 4

Peripheral

Answer 4

Loosely attached to the surfaces of the cell membrane

Question 5

Electrochemical gradient

Answer 5

Difference in charge inside and outside membrane

Question 6

Active

Answer 6

Movement using atp

Question 7

Passive

Answer 7

Movement not using atp

Question 8

Simple diffusion

Answer 8

Any substance from region of higher concentration to lower

Question 9

Facilitated diffusion

Answer 9

Same as simple diffusion except movement is across a semipermeable

Question 10

Osmosis

Answer 10

Movement of water from high concentration to low

Question 11

Filtration

Answer 11

Movement of molecules from high pressure to low

Question 12

Three principle parts of a generalized animal cell

Answer 12

Plasma membrane, cytoplasm, nucleus