Chapter 6- Energy Flow in teh Life of a Cell

Question 1

Potential energy

Answer 1

Stored energy

Question 2

________ energy available in biological molecules.

Answer 2

Chemical

Question 3

_______ energy stored in a wound clock spring

Answer 3

Elastic

Question 4

_____________ energy in a roller-coaster car about to begin its downward plunge.

Answer 4

Gravitational

Question 5

What is Kinetic energy

Answer 5

Energy of movement

Question 6

Waves of light

Answer 6

Radiant energy

Question 7

____ or thermal energy

Answer 7

Heat

Question 8

Flow of charged particles

Answer 8

Electricity

Question 9

Example of Kinetic energy

Answer 9

Plummeting roller-coaster car

Question 10

States that energy can neither be created nor destroyed by ordinary processes. (Nuclear reactions,in which matter is converted into energy are the exception)

Answer 10

First Law of Thermodynamics

Question 11

Second Law of Thermodynamics

Answer 11

States that when energy is converted from one form to another, the amount of useful energy decreases.

Question 12

A measure of the amount of randomness and disorder in a system.

Answer 12

Entropy

Question 13

Solar energy

Answer 13

Is the ultimate source of energy for almost all forms of life on Earth.

Question 14

“Energy Out” releases energy; the starting reactants contain more energy than the end products.

Answer 14

Exergonic reactions

Question 15

“Energy In” requires a net input of energy; The starting reactants contain less energy than the end products.

Answer 15

Endergonic Reactions

Question 16

High-energy molecules that are synthesized at the site of an exergonic reaction, where the capture some of the released energy, behave much like rechargeable batteries- not used for long-term storage

Answer 16

Energy-carrier-molecules

Question 17

The most common energy-carrier molecule in living organisms

Answer 17

Adenosine Triphosphate (ATP)

Question 18

NADH also know as what?

Answer 18

Nicotinamide adenine dinucleotide

Question 19

FADH2 also know as what?

Answer 19

Flavin adenine dinucleotide

Question 20

Nicotinamide adenine dinucleotide and Flavin adenine dinucleotide define

Answer 20

Are other common electron carriers

Question 21

An exergonic reaction that provides energy needed to drive an endergonic reaction; two reactions that involve one providing energy for the other

Answer 21

Coupled reaction

Question 22

Catalysts

Answer 22

Molecules that speed up the rate of a reaction by lowering the activation energy of a biochemical reaction without themselves being used up or permanently altered.

Question 23

Catalysts speed __ reactions by ________ the activation energy required for the reaction to begin.

Answer 23

Up

Lowering

Question 24

Catalysts can speed up ____ exergonic and endergonic reactions, but they _______ make an endergonic reaction occur spontaneously.

Answer 24

Both

Cannot

Question 25

Catalysts are not consumed or ___________ changed by the reactions they _______

Answer 25

Permanently

Promote

Question 26

Enzymes are biological catalysts

Answer 26

Nearly all are proteins

Question 27

The ________ of enzymes is __________ by their __________

Answer 27

Activity
Influenced
Environment