Chatper 5

Question 1

Membrane Structure is…

Answer 1

Highly Organized, phospholipid bilayer, gobular proteins lipid bilayer, and fluid mosiac model

Question 2

Globular Protiens

Answer 2

Lipid Bilayer

Question 3

Phospholipid

Answer 3

Bilayer

Question 4

Fluid Mosiac Model

Answer 4

Mosiac of proteins floating above or on lipid bilayer

Question 5

Cellular Membranes 4 components (PTIC)

Answer 5

Phospholipid Bilayer, Transmembrane Proteins, Interior Protein Network, Cell Surface Markers

Question 6

Phospholipids consist of…

Answer 6

Glycerol, Phosphate group attached to glycerol, and 2 fatty acids attached to glycerol

Question 7

Fatty Acids are ___ and ___

Answer 7

Non-Polar, Hydrophobic

Question 8

Phosphate Group

Answer 8

Polar, Hydrophilic

Question 9

Passive Transport is a

Answer 9

movement of molecules thru a membrane in which no energy is required

Question 10

Molecules move in response to

Answer 10

Concentration Gradient

Question 11

Diffusion moves from

Answer 11

High 2 Low

Question 12

Facilitated Diffusion moves from

Answer 12

Low 2 High

Question 13

3 Conditions determine direction

Answer 13

1. Relative Concentration
2. Voltage Difference
3. Gated Channels, open or closed

Question 14

Osmosis

Answer 14

Net diffusion of H20 across a membrane towards a higher solute

Question 15

Solvent

Answer 15

Water

Question 16

Solute

Answer 16

Dissolved Substance

Question 17

Hypertonic

Answer 17

Higher Solute

Question 18

Hypotonic

Answer 18

Lower Solute

Question 19

Osmotic Pressure is the…

Answer 19

Force needed to stop osmotic flow

Question 20

If membrane is strong enough…

Answer 20

The cell will reach counterbalance

Question 21

If membrane is not strong enough…

Answer 21

The cell may burst

Question 22

Extrusion is used in

Answer 22

Maintaining Osmotic Balance

Question 23

What is Extrusion

Answer 23

Ejecting water out through contractile vacuoles

Question 24

Plant cells use _____ _____ to push the cell membrane against cell wall to keep it ridgid

Answer 24

Turgor Pressure

Question 25

Active Transport requires

Answer 25

ATP

Question 26

Active Transport moves from

Answer 26

a low to high concentration

Question 27

Uniporters

Answer 27

Move 1 molecule at a time

Question 28

Symporters

Answer 28

Move 2 molecules at a time in the SAME direction

Question 29

Antiporters

Answer 29

Move 2 molecules at a time in differing directions

Question 30

Sodium Potassium Pump moves ___ ___ out of cell, and __ __ into the cell

Answer 30

3 Na+, 2+ K