Chapter 5

Question 1

A cell has a _____ and is ____ permeable

Answer 1

Phospholipid bilayer; selectively

Question 2

____ model illustrates structure and function of plasma membrane

Answer 2

Fluid mosaic

Question 3

A cell’s membrane is

Answer 3

Selectively permeable

Question 4

A membrane allows

Answer 4

small, non-polar molecules

Question 5

Molecules passing through the bilayer with no energy required

Answer 5

Passive transport

Question 6

Non-polar and small polar molecules pass through by

Answer 6

Simple Diffusion

Question 7

Molecules flow across a ____ from a high density do a small density

Answer 7

Concentration gradient

Question 8

Diffusion of water across the membrane

Answer 8

Osmosis

Question 9

Less solute

Answer 9

Hypotonic

Question 10

More solute

Answer 10

Hypertonic

Question 11

Balanced

Answer 11

Isotonic

Question 12

Animal cells like to be___

Answer 12

Isotonic

Question 13

Plant cells like to be ___

Answer 13

Hypotonic

Question 14

Larger ions are able to pass through membrane with help from ___

Answer 14

Transport proteins

Question 15

Passive transport with the help of transport proteins

Answer 15

Facilitated Diffusion

Question 16

Active transport

Answer 16

Requires energy; against concentration gradiant

Question 17

Phagocytosis

Answer 17

Solid energy source

Question 18

Pinocytosis

Answer 18

Liquid energy source

Question 19

Exocytosis

Answer 19

Exports bulky materials from cell

Question 20

Endocytosis

Answer 20

Cells take in large molecules or fluids; has receptors

Question 21

Energy

Answer 21

Capacity to do work

Question 22

Energy that is doing the work

Answer 22

Kinetic energy

Question 23

Stored Energy

Answer 23

Potential energy

Question 24

ATP

Answer 24

Cells Energy, lots of potential energy

Question 25

When ATP is being used it releases a ____ and has a lot of ___ energy

Answer 25

Phosphate; Kinetic

Question 26

Thermodynamics

Answer 26

Study of energy transformations that occur in a collection of matter

Question 27

First Law of thermodynamics

Answer 27

Energy can not be created or destroyed only changed from one state to another

Question 28

Second Law of thermodynamics

Answer 28

Energy conversions lead to entropy

Question 29

Reactants

Answer 29

Object going into a reaction

Question 30

Product

Answer 30

Object coming out of a reaction

Question 31

Endergonic Reactions

Answer 31

Require net input of energy

Question 32

Exergonic Reaction

Answer 32

Reaction releases energy

Question 33

Reactants have more ___ energy than products

Answer 33

Potential

Question 34

Ea is the energy ____ required to start a reaction

Answer 34

input

Question 35

A ___ lowers the Ea

Answer 35

catalyst

Question 36

____ are biological catalysts

Answer 36

Enzymes

Question 37

Enzyme Inhibitors

Answer 37

Block certain binding sites on enzymes

Question 38

Non Competitive inhibitors

Answer 38

Change shape of enzyme