Question 1

Less energy is needed to bring about a reaction when an enzyme is present.

Accepted Answer

A) True 
 B)False

Question 2

Which of the areas shown in the figure below indicates the presence of an enzyme in the movement of reactant over to product?

Accepted Answer

A)   a
B)   b
C)   c
D)   d
E)   Both a & dF) B) and D)
G) A) and E)

Question 3

Where within the cell is ATP built up?

Accepted Answer

A)   mitochondria
B)   cytoplasm
C)   nucleus
D)   endoplasmic reticulum
E)   Golgi bodyF) B) and C)
G) D) and E)

Question 4

What is the biological risk of using salt on icy roads in parts of the country that have a cold winter season?

Accepted Answer

A)   The salt has the risk of leeching into the ground and creating a hypertonic environment for plant cells.
B)   Plant root cells will grow in excess to try to reach fresh water.
C)   Plant cells will take on excess water from the melted ice and become turgid.
D)   Salt is in limited supply in the ecosystem and this type of overuse will make it even more so.
E)   The deer in these areas have the danger of consuming too much of it as they forage for food.F) A) and C)
G) B) and E)

Question 5

Probable factors that affect the passage of materials across cell membranes include all of the following EXCEPT

Accepted Answer

A)   concentration.
B)   size.
C)   color.
D)   time.
E)   charge.F) A) and C)
G) A) and B)

Question 6

Molecules move from greater to lesser concentration through a transport protein in

Accepted Answer

A)   simple diffusion.
B)   facilitated diffusion.
C)   pinocytosis.
D)   active transport.
E)   phagocytosis.F) All of the above
G) B) and C)

Question 7

Which energy association is correct?

Accepted Answer

A)   Kinetic energy is energy of motion.
B)   Water stored behind a dam is an example of kinetic energy.
C)   Energy in the chemical bonds of a molecule is kinetic energy.
D)   Potential energy must be used immediately or it is lost.
E)   Light energy is a form of chemical energy.F) A) and E)
G) A) and C)

Question 8

Both starch and cellulose are made by stringing together many glucose molecules,but starch is easily digested by humans while cellulose is indigestible.The starch polysaccharide has every bond occurring below the sugar rings while the bonds in cellulose alternate between one bond above the ring and the next below the ring.How can you explain the human's inability to digest cellulose?

Accepted Answer

A)   The enzyme that breaks down starch can only fit the specific bond configuration of bonds below the ring.
B)   Humans do not eat cellulose.
C)   The acidic molecules found in stomach acid cannot act on the bonds that are above the sugar rings in cellulose.
D)   The alternating bonds make the cellulose molecule too large and bulk to enter cells for digestion.
E)   Cellular respiration is only capable of breaking down specific bonds.F) None of the above
G) C) and D)

Question 9

Energy of activation

Accepted Answer

A)   is the energy required for molecules to react with each other.
B)   requires the use of enzymes.
C)   allows for feedback inhibition.
D)   acts on the products of metabolic reactions.
E)   is a measure of the amount of solar radiation striking a leaf surface.F) All of the above
G) A) and D)

Question 10

The opposite of a turgid plant cell is a

Accepted Answer

A)   hypertonic plant cell.
B)   osmotic plant cell.
C)   isotonic plant cell.
D)   plasmolyzed plant cell.
E)   ruptured plant cell.F) All of the above
G) B) and E)

Question 11

The part of the enzyme into which the substrate fits is called the

Accepted Answer

A)   feedback site.
B)   active site.
C)   substrate location.
D)   inhibitor.
E)   solute.F) A) and E)
G) B) and E)

Question 12

The figure below reflects how these two cells would respond in a _______ environment.

Accepted Answer

A)   hypotonic
B)   isotonic
C)   hypertonic
D)   diffuse
E)   ionicF) B) and D)
G) C) and D)

Question 13

If blood cells are placed in a hypertonic solution

Accepted Answer

A)   the cells will shrink due to water loss by the cell.
B)   the cells will be unaffected since they have a cell membrane to separate them from the solution.
C)   the cells will swell due to diffusion.
D)   the cells will burst due to active transport.
E)   the cells will shrink due to the loss of solutes from the blood cell.F) None of the above
G) All of the above

Question 14

When neurons release their neurotransmitters,they release them by secretory vesicles fusing with the plasma membrane thereby emptying their contents into an area that can stimulate some response.What type of cellular transport is occurring as the vesicle forms and then surfaces on the cell's plasma membrane?

Accepted Answer

A)   active transport
B)   diffusion
C)   exocytosis
D)   pinocytosis
E)   osmosisF) B) and E)
G) C) and D)

Question 15

Which of the following statements most accurately describes the first law of thermodynamics?

Accepted Answer

A)   energy can be neither created nor destroyed but it can be changed from one form to another.
B)   one usable form of energy cannot be completely converted into another usable form.
C)   one usable form of energy can be completely converted into another usable form.
D)   energy cannot be created or destroyed.
E)   energy cannot be transformed.F) A) and C)
G) B) and D)

Question 16

The second law of thermodynamics states that all energy transformations result in more disordered energy.How does this relate to energy transformation in a living organism?

Accepted Answer

A)   the energy taken in as food is eventually converted into kinetic energy
B)   the energy taken in as food is eventually converted into heat energy
C)   the energy taken in as kinetic energy is eventually converted into heat energy
D)   the energy taken in as heat energy is eventually converted into kinetic energy
E)   no energy in a living organism can undergo more than one transformationF) A) and B)
G) B) and E)

Question 17

Metabolic pathways are known for all of the following EXCEPT

Accepted Answer

A)   the use of energy in small amounts.
B)   linking between pathways.
C)   controlled formation of products.
D)   feedback inhibition.
E)   enzymes to help raise the energy of activation.F) B) and E)
G) A) and E)

Question 18

Osmosis includes

Accepted Answer

A)   a semi-permeable membrane.
B)   transport proteins.
C)   the diffusion of water.
D)   both the diffusion of water and a semi-permeable membrane.
E)   both a semi-permeable membrane and transport proteins.F) A) and E)
G) B) and C)

Question 19

In what function do the embedded membrane proteins at "c" serve?  2-2013

Accepted Answer

A)   simple diffusion
B)   facilitated and active transport
C)   support for the membrane
D)   phagocytosis
E)   osmosisF) A) and E)
G) A) and B)

Question 20

Enzymes,coenzymes,and cofactors provide a mechanism for a cell to regulate the metabolism of a large amount of cell products using small quantities of chemicals.

Accepted Answer

A) True 
 B)False

Exam 5: The Dynamic Cell

Energy of activation

Correct Answer
verified

Molecules move from greater to lesser concentration through a transport protein in

Correct Answer
verified

Enzymes,coenzymes,and cofactors provide a mechanism for a cell to regulate the metabolism of a large amount of cell products using small quantities of chemicals.

Correct Answer
verified

Which of the areas shown in the figure below indicates the presence of an enzyme in the movement of reactant over to product?

Correct Answer
verified

Metabolic pathways are known for all of the following EXCEPT

Correct Answer
verified

In what function do the embedded membrane proteins at "c" serve? 2-2013

Correct Answer
verified

Probable factors that affect the passage of materials across cell membranes include all of the following EXCEPT

Correct Answer
verified

The second law of thermodynamics states that all energy transformations result in more disordered energy.How does this relate to energy transformation in a living organism?

Correct Answer
verified

What is the biological risk of using salt on icy roads in parts of the country that have a cold winter season?

Correct Answer
verified

If blood cells are placed in a hypertonic solution

Correct Answer
verified

Osmosis includes

Correct Answer
verified

Which energy association is correct?

Correct Answer
verified

Correct Answer
verified

Which of the following statements most accurately describes the first law of thermodynamics?

Correct Answer
verified

Where within the cell is ATP built up?

Correct Answer
verified

The figure below reflects how these two cells would respond in a _______ environment.

Correct Answer
verified

The part of the enzyme into which the substrate fits is called the

Correct Answer
verified

Less energy is needed to bring about a reaction when an enzyme is present.

Correct Answer
verified

The opposite of a turgid plant cell is a

Correct Answer
verified

Correct Answer
verified

Exam 5: The Dynamic Cell

Energy of activation

Correct AnswerverifiedShow Answer

Molecules move from greater to lesser concentration through a transport protein in

Correct AnswerverifiedShow Answer

Enzymes,coenzymes,and cofactors provide a mechanism for a cell to regulate the metabolism of a large amount of cell products using small quantities of chemicals.

Correct AnswerverifiedShow Answer

Which of the areas shown in the figure below indicates the presence of an enzyme in the movement of reactant over to product?

Correct AnswerverifiedShow Answer

Metabolic pathways are known for all of the following EXCEPT

Correct AnswerverifiedShow Answer

In what function do the embedded membrane proteins at "c" serve? 2-2013

Correct AnswerverifiedShow Answer

Probable factors that affect the passage of materials across cell membranes include all of the following EXCEPT

Correct AnswerverifiedShow Answer

The second law of thermodynamics states that all energy transformations result in more disordered energy.How does this relate to energy transformation in a living organism?

Correct AnswerverifiedShow Answer

What is the biological risk of using salt on icy roads in parts of the country that have a cold winter season?

Correct AnswerverifiedShow Answer

If blood cells are placed in a hypertonic solution

Correct AnswerverifiedShow Answer

Osmosis includes

Correct AnswerverifiedShow Answer

Which energy association is correct?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following statements most accurately describes the first law of thermodynamics?

Correct AnswerverifiedShow Answer

Where within the cell is ATP built up?

Correct AnswerverifiedShow Answer

The figure below reflects how these two cells would respond in a _______ environment.

Correct AnswerverifiedShow Answer

The part of the enzyme into which the substrate fits is called the

Correct AnswerverifiedShow Answer

Less energy is needed to bring about a reaction when an enzyme is present.

Correct AnswerverifiedShow Answer

The opposite of a turgid plant cell is a

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

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