Biochemistry Exam 4

Question 1

What uses ATP energy to build larger molecules?

Answer 1

Anabolic reactions (metabolism)

Question 2

What is the break down of large complex molecules to provide energy and smaller molecules?

Answer 2

Catabolic reactions (metabolism)

Question 3

What are the three stages of catabolic reactions?

Answer 3

Stage 1:

Question 4

The ____ contains the genes that control DNA replication and protein synthesis.

Answer 4

Cell Nucleus

Question 5

Where does protein synthesis based mRNA templates happen?

Answer 5

Ribosome

Question 6

Which molecule is used in anabolic reactions and considered the energy storage molecule?

Answer 6

ATP

Question 7

What is the product of fATP hydrolysis?

Answer 7

ADP + Pi

Question 8

The _______ is a series of reactions that connects the intermediate acetyl CoA from the catabolic pathways in stage 2 with electron transport and the synthesis of ATP in stage 3.

Answer 8

• citric acid cycle

Question 9

What cycle and stage produces reduced coenzymes NADH and FADH2?

Answer 9

• The citric acid cycle (stage 3)

Question 10

• operates under aerobic conditions.
• oxidizes the two-carbon acetyl group in acetyl CoA to CO2.
• produces reduced coenzymes NADH and FADH2.
• is named for the six-carbon citrate ion from citric acid (C6H8O7), a tricarboxylic acid, formed in the first reaction.
• is also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle.

Answer 10

• The citric acid cycle (stage 3)