Question 1

A balloon permeable to water but not to glucose contains a 10% glucose solution.A beaker contains a 5% glucose solution.Which of the following is true?

Accepted Answer

A)   The solution in the beaker is hypertonic relative to the solution in the balloon.
B)   The solution in the balloon is isotonic; the solution in the beaker is hypertonic.
C)   When placed in the beaker, the balloon will lose water by osmosis.
D)   The solution in the balloon is hypertonic relative to the solution in the beaker. D

Question 2

What is energy?

Accepted Answer

A)   the capacity to cause movement
B)   the capacity to cause change
C)   a measure of calories
D)   a measure of disorder

Question 3

If placed in tap water,an animal cell will undergo lysis,whereas a plant cell will not.What accounts for this difference?

Accepted Answer

A)   expulsion of water by the plant cell's central vacuole
B)   the relative impermeability of the plant cell membrane to water
C)   the relative impermeability of the plant cell wall to water
D)   the relative inelasticity and strength of the plant cell wall

Question 4

Anything that prevents ATP formation will most likely ______.

Accepted Answer

A)   result in cell death
B)   force the cell to rely on lipids for energy
C)   force the cell to rely on ADP for energy
D)   have no effect on the cell

Question 5

Diffusion ______.

Accepted Answer

A)   is the result of the potential energy of atoms
B)   requires an input of cellular energy
C)   occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated
D)   proceeds until equilibrium is reached

Question 6

The sum total of all the chemical reactions that occur in organisms is called ______.

Accepted Answer

A)   summation
B)   cellular synthesis
C)   replication
D)   metabolism

Question 7

Enzymes increase the rate of a reaction by ______.

Accepted Answer

A)   increasing the temperature of the substrates
B)   contributing electrons to the reaction
C)   decreasing activation energy
D)   changing the pH of the substrates

Question 8

When two solutions that differ in solute concentration are placed on either side of a selectively permeable membrane,and osmosis is allowed to take place,the water will ______.

Accepted Answer

A)   exhibit a net movement to the side with lower water concentration
B)   exhibit a net movement to the side with higher water concentration
C)   exhibit a net movement to the side with lower solute concentration
D)   exhibit an equal movement in both directions across the membrane

Question 9

When a person cries,tears are exported from cells through the process of

Accepted Answer

A)   facilitated diffusion.
B)   active transport.
C)   endocytosis.
D)   exocytosis. C

Question 10

Energy is transferred from ATP to other molecules by transferring a(n) ______.

Accepted Answer

A)   adenosine
B)   heat unit
C)   photon
D)   phosphate group

Question 11

Which of the following is a measure of randomness in a system?

Accepted Answer

A)   entropy
B)   kinetic energy
C)   potential energy
D)   chemical energy

Question 12

Which one of the following is most similar to the mechanism of an enzyme inhibitor?

Accepted Answer

A)   keeping someone from parking by parking in their designated spot
B)   driving the wrong way on a one-way street
C)   forgetting to put a cap back on a pen
D)   changing the tires on a car

Question 13

You are riding on your bike and stop pedaling,coasting along the road.Eventually,your bike slows down and stops.What happened to the energy of your motion when your bike stopped?

Accepted Answer

A)   It was returned to the bicycle.
B)   It was converted back to chemical energy.
C)   It was released as heat.
D)   It was used to chemically break down the tires.

Question 14

Ten kilocalories are equivalent to ______ calories.

Accepted Answer

A)   1,000
B)   10,000
C)   0.1
D)   100 B

Question 15

The figure below shows that ______.

Accepted Answer

A)   ADP can perform cellular work when it binds to an additional phosphate group
B)   ATP can perform cellular work when it releases a phosphate group
C)   ATP can be converted to ADP by adding a phosphate group
D)   energy is released from ATP during the process of cellular respiration

Question 16

Osmosis can be defined as ______.

Accepted Answer

A)   the diffusion of water
B)   the diffusion of nonpolar molecules
C)   active transport
D)   the diffusion of a solute

Question 17

Usually,enzymes are ______.

Accepted Answer

A)   fats
B)   steroids
C)   chemical reactions
D)   proteins

Question 18

An enzyme's function is dependent on its ______.

Accepted Answer

A)   pH
B)   temperature
C)   shape
D)   size

Question 19

The principle that energy cannot be created or destroyed is known as ______.

Accepted Answer

A)   interconversion
B)   conservation of energy
C)   conservation of heat
D)   entropy

Question 20

You have a 2-kg bottle of liquid water at 0°C.About how many Calories are needed to heat up the water to 100°C?

Accepted Answer

A)   100 Calories
B)   200 Calories
C)   2,000 Calories
D)   10,000 Calories

Exam 5: The Working Cell

A balloon permeable to water but not to glucose contains a 10% glucose solution.A beaker contains a 5% glucose solution.Which of the following is true?

Correct AnswerverifiedD

What is energy?

Correct AnswerverifiedShow Answer

If placed in tap water,an animal cell will undergo lysis,whereas a plant cell will not.What accounts for this difference?

Correct AnswerverifiedShow Answer

Anything that prevents ATP formation will most likely ______.

Correct AnswerverifiedShow Answer

Diffusion ______.

Correct AnswerverifiedShow Answer

The sum total of all the chemical reactions that occur in organisms is called ______.

Correct AnswerverifiedShow Answer

Enzymes increase the rate of a reaction by ______.

Correct AnswerverifiedShow Answer

When two solutions that differ in solute concentration are placed on either side of a selectively permeable membrane,and osmosis is allowed to take place,the water will ______.

Correct AnswerverifiedShow Answer

When a person cries,tears are exported from cells through the process of

Correct AnswerverifiedC

Energy is transferred from ATP to other molecules by transferring a(n) ______.

Correct AnswerverifiedShow Answer

Which of the following is a measure of randomness in a system?

Correct AnswerverifiedShow Answer

Which one of the following is most similar to the mechanism of an enzyme inhibitor?

Correct AnswerverifiedShow Answer

You are riding on your bike and stop pedaling,coasting along the road.Eventually,your bike slows down and stops.What happened to the energy of your motion when your bike stopped?

Correct AnswerverifiedShow Answer

Ten kilocalories are equivalent to ______ calories.

Correct AnswerverifiedB

The figure below shows that ______.

Correct AnswerverifiedShow Answer

Osmosis can be defined as ______.

Correct AnswerverifiedShow Answer

Usually,enzymes are ______.

Correct AnswerverifiedShow Answer

An enzyme's function is dependent on its ______.

Correct AnswerverifiedShow Answer

The principle that energy cannot be created or destroyed is known as ______.

Correct AnswerverifiedShow Answer

You have a 2-kg bottle of liquid water at 0°C.About how many Calories are needed to heat up the water to 100°C?

Correct AnswerverifiedShow Answer

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C

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B

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