Question 1(Multiple Choice Worth 4 points)

Question

(02.05 LC)

Which of the following releases energy?

Nutrients entering a cell through the cell membrane
Removing a phosphate group from an ATP molecule
Building sugar or starch molecules for long-term energy storage
Adding an additional phosphate group to an ADP molecule
Question 2(Multiple Choice Worth 4 points)
(02.05 MC)

What molecules can be used for long-term energy storage?

ADP and fat
Starch and fat
ADP and ATP
Starch and ATP
Question 3(Multiple Choice Worth 4 points)
(02.05 LC)

Energy is released to be used by a cell when a phosphate group is

removed from ADP to form ATP
added to ADP to form ATP
removed from ATP to form ADP
added to ATP to form ADP
Question 4(Multiple Choice Worth 4 points)
(02.05 MC)

Why do cells use fat and starch for long-term energy storage instead of ATP molecules?

ATP is used for long-term storage, while fat and starch are used for immediate energy.
ATP is used for short-term energy and to build molecules of starch and fat.
Fat and starch are unstable and can be stored short-term, while ATP molecules are stable and stored long-term.
Fat and starch are stable if used as energy immediately, while ATP is used as long-term storage.
Question 5(Multiple Choice Worth 4 points)
(02.05 MC)

What molecule is represented by the molecular model shown below?

The molecule is made up of adenine, a five-carbon sugar called ribose, and a chain of two phosphate groups.

Glucose
Adenosine triphosphate (ATP)
Adenosine diphosphate (ADP)
Starch

Answer 1

Here are the answers to the questions based on the provided options:

Question 1: Which of the following releases energy?

• Answer: Removing a phosphate group from an ATP molecule

Question 2: What molecules can be used for long-term energy storage?

• Answer: Starch and fat

Question 3: Energy is released to be used by a cell when a phosphate group is

• Answer: removed from ATP to form ADP

Question 4: Why do cells use fat and starch for long-term energy storage instead of ATP molecules?

• Answer: ATP is used for short-term energy and to build molecules of starch and fat.

Question 5: What molecule is represented by the molecular model shown below?

• Answer: Adenosine triphosphate (ATP)

These answers align with basic principles of cellular biology and bioenergetics.