Honor Bio 7.3

Question 1

Metabolism

Answer 1

The total of all chemical reactions occurring in an organism to maintain life.

Question 2

Anabolic

Answer 2

A type of metabolic pathway that builds larger molecules from smaller ones, requiring energy input.

Question 3

Catabolic

Answer 3

A metabolic pathway that breaks down larger molecules into smaller ones, releasing energy.

Question 4

Exergonic

Answer 4

A reaction that releases energy, meaning the products have lower energy than the reactants.

Question 5

Endergonic

Answer 5

A reaction that requires energy input, meaning the products have higher energy than the reactants.

Question 6

Hydrolysis

Answer 6

A chemical reaction that breaks a bond using water, commonly seen in ATP breakdown to release energy.

Question 7

Synthesis

Answer 7

A reaction that combines smaller molecules to form a larger molecule, often requiring energy input.

Question 8

ATP Cycle

Answer 8

The continuous process of ATP being broken down (releasing energy) and regenerated (storing energy) through the phosphorylation of ADP

Question 9

Graph of Exergonic Reaction

Answer 9

The energy of the reactants is higher than the products; energy is released.

Question 10

Graph of Endergonic Reaction

Answer 10

The energy of the reactants is lower than the products; energy is absorbed.

Question 11

Is an anabolic reaction exergonic or endergonic?

Answer 11

Anabolic reactions are endergonic because they require energy input to build larger molecules.

Question 12

Is a catabolic reaction exergonic or endergonic?

Answer 12

Catabolic reactions are exergonic because they break down molecules and release energy.

Question 13

Which part of the ATP cycle is exergonic?

Answer 13

The hydrolysis of ATP into ADP and phosphate releases energy, making it an exergonic reaction.

Question 14

Which part of the ATP cycle is endergonic?

Answer 14

The synthesis of ATP from ADP and phosphate requires energy input, making it an endergonic reaction.