7.3 Energy for Life

Question 1

What is a metabolism?

Answer 1

Metabolism is the chemical processes that occur within a living organism.

Question 2

What is an anabolic reaction?

Answer 2

An anabolic reaction, the same as an endergonic reaction, is where the products of a chemical reaction has more energy that the reactants.

Question 3

What is a catabolic reaction?

Answer 3

A catabolic reaction, the same as an exergonic reaction, is where the amount of energy required to break bonds is less than the amount of energy released when making bonds.

Question 4

Which reaction: exergonic or endergonic, releases energy?

Answer 4

Exergonic reactions release energy.

Question 5

True or False?
Exergonic reactions must be performed to provide the energy for endergonic reactions.

Answer 5

True.

Question 6

True or False?
Photosynthesis is an example of an exergonic reactions.

Answer 6

False.
Photosynthesis is an example of an endergonic reaction. It requires an input of energy to synthesize carbohydrate.

Question 7

ADP converting into ATP is an example of which process? Anabolic or catabolic?

Answer 7

ADP converting into ATP is an example of an anabolic reaction.

Question 8

ATP breaking down into ADP is an example of which process? Endergonic or exergonic?

Answer 8

ATP breaking down into ADP is an example of an exergonic reaction.

Question 9

What does ATP stand for? What does ADP stand for?

Answer 9

ATP stands for adenosine triphosphate, and ADP stands for adenosine diphosphate.

Question 10

Why do exergonic reactions happen spontaneously?

Answer 10

Exergonic reactions are also called spontaneous reactions, because they can occur without the addition of energy.