Chapter 4- Basic Energy Concepts

Question 1

Energy

Answer 1

The ability to do work or to move matter

Question 2

Potential Energy

Answer 2

Stored energy

Chemical energy

Question 3

Kinetic Energy

Answer 3

Energy in motion

Light, sound

Movement of atoms and molecules, muscle contraction

Question 4

Thermodynamics

Answer 4

Laws that describe energy transfer

Question 5

1st Law Of Thermodynamics

Answer 5

Energy can neither be created nor destroyed, it can only change forms

Question 6

2nd Law of Thermodynamics

Answer 6

Energy transformations are inefficient

“Entropy”

Question 7

Entropy

Answer 7

The measure of disorder/randomness

Heat is constantly lost to the universe

Question 8

Metabolism

Answer 8

Includes all chemical reactions happening in a cell

Question 9

ATP (adenosine triphosphate)

Answer 9

Cellular energy currency

All cells rely on the potential energy stored in ATP to power chemical reactions

Question 10

Removing a phosphate by hydrolysis from ATP…

Answer 10

Releases stored potential energy

Question 11

ATP (formula)

Answer 11

ATP= ADP+P+Energy

Question 12

For ATP to be reformed…

Answer 12

Mitochondria release energy from food producing ATP from ADP

ADP+P+energy= ATP