Practice Exam Answers

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Match each part of the water molecule or related concept with its correct description.

Answer:

has a partial positive charge due to unequal electron sharing|results in a bent molecular shape|has a partial negative charge from stronger electron attraction|creates a molecule with two charged ends

30

Which statement correctly explains whether more ATP is found in muscle cells or bone cells?

A
More ATP is found in bone cells because they grow more and need energy from ATP.
B
More ATP is found in bone cells because they need large amounts of energy to produce marrow.
C
More ATP is found in muscle cells because they use energy less efficiently than bone cells.
D
More ATP is found in muscle cells because they need large amounts of energy to power motion.
31

Which statement best describes the process of chemiosmosis and the direct result of its occurrence?

A
Hydrogen ions flow from the thylakoid down a concentration gradient through ATP synthase channels into the stroma. ATP is converted to ADP.
B
Hydrogen ions flow from the stroma down a concentration gradient through ATP synthase channels into the thylakoid. ADP is converted to ATP.
C
Hydrogen ions flow from the thylakoid against a concentration gradient through ATP synthase channels into the stroma. ADP is converted to ATP.
D
Hydrogen ions flow from the thylakoid down a concentration gradient through ATP synthase channels into the stroma. ADP is converted to ATP.
33

Which statement correctly describes what proteins, lipids, and glycogen have in common?

A
They are all used as primary energy sources during exercise.
B
They are each stored in the liver to be used as a ready energy reserve.
C
They each can be broken down to provide ATP to cells.
D
They each contain the same amount of ATP.
34

What would most likely happen to plants if they did not have a waxy outer coating?

A
They would photosynthesize at a faster rate.
B
They would store more water in their leaves.
C
They would store more sugars in their leaves.
D
They would be harmed by insects and UV radiation.
35

In which part of the body is glycogen stored?

A
blood
B
liver
C
pancreas
D
exoskeleton

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