Question 1

Which of the following enables a cell to pick up and concentrate a specific type of molecule?

Accepted Answer

A)   passive transport
B)   receptor-mediated endocytosis
C)   osmosis
D)   exocytosis
E)   facilitated diffusionF) A) and E)
G) A) and B)

Question 2

The changing of an enzyme's shape as the substrate binds to the active site is called the

Accepted Answer

A)   substrate binding theory.
B)   induced fit model.
C)   metabolic pathway.
D)   energy of activation.
E)   enzyme binding theory.F) A) and B)
G) C) and D)

Question 3

The second law of thermodynamics states that all energy transformations result in more disordered energy. How do living organisms, which depend on chemical potential converting to kinetic energy to fuel their function, continue to live?

Accepted Answer

A)   they must constantly take in chemical potential energy for fuel and excrete waste
B)   living things do not obey the laws of thermodynamics
C)   they must constantly take in chemical potential energy for fuel
D)   they excrete the disordered molecules and lose the disordered energy as heat
E)   they take the disordered molecules and heat energy and use them to create new fuelF) C) and D)
G) B) and D)

Question 4

Enzymes are named based on the substrate that they bind; this is possible because

Accepted Answer

A)   enzymes all have the same shape.
B)   an enzyme binds one specific substrate.
C)   enzymes are used up in the reaction.
D)   an enzyme is only associated with one metabolic pathway.
E)   enzymes speed up the rate of a reaction.F) A) and B)
G) C) and D)

Question 5

Which of the following is an example of osmosis?

Accepted Answer

A)   Glucose is transported from our blood stream across cell membranes and into the cytoplasm.
B)   Sodium is pumped across a cell to increase its concentration on one side of the cell membrane.
C)   Cells of our kidneys reabsorb water to prevent it from all leaving through our urine.
D)   A broken bottle of perfume is able to be smelled throughout the department store.
E)   A bacterium in the blood stream is engulfed by a white blood cell.F) A) and B)
G) C) and D)

Question 6

What process typically regulates the enzymes involved in metabolic reactions?

Accepted Answer

A)   substrate inhibition
B)   entropy capture
C)   ATP blockage
D)   feedback inhibition
E)   temperature levelsF) B) and C)
G) C) and D)

Question 7

Which of the following statements reflects what occurs in the flow of energy conversions through living systems?

Accepted Answer

A)   Chloroplasts convert solar energy to the chemical energy of nutrient molecules.
B)   Mitochondria convert ATP molecules into glucose.
C)   Chloroplasts produce CO2 and H2O during photosynthesis.
D)   Mitochondria capture solar energy and convert it to oxygen.
E)   Chloroplasts burn glucose into ATP molecules during cell respiration.F) All of the above
G) A) and E)

Question 8

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 E)
G) A) and D)

Question 9

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) A) and D)
G) C) and D)

Question 10

In the following figure, which cell exhibits the condition of plant cells that have been placed in a hypertonic environment?

Accepted Answer

A)   a
B)   b
C)   cD) A) and B)
E) All of the above

Question 11

Which of these words does not belong with the rest as it relates to concentration gradient?

Accepted Answer

A)   osmosis
B)   diffusion
C)   passive transport
D)   active transport
E)   facilitated diffusionF) A) and B)
G) All of the above

Question 12

Simple diffusion across a plasma membrane is called passive transport because it ________.

Accepted Answer

A)   requires transport proteins
B)   requires energy from the cell
C)   does not require energy from the cell
D)   does not require control by the nucleus
E)   moves molecules from low to high concentrationF) A) and C)
G) A) and B)

Question 13

What prevents a plant cell from bursting in a hypotonic solution?

Accepted Answer

A)   plasma membrane
B)   transport proteins which help pump the excess water out of the cell
C)   cell wall
D)   a plant cell will not burst in a hypotonic solution because water is moving out of the cell
E)   the presence of chloroplastsF) A) and B)
G) A) and C)

Question 14

A patient who is admitted to the hospital shares that she has been taking a series of "water pills" to help her lose weight. Her skin and mucous membranes are dry, and she is complaining of a headache. The physician on call asks for an IV treatment to be promptly administered. Based on the information given, what would likely be the type of IV solution given to this patient?

Accepted Answer

A)   hypotonic
B)   isotonic
C)   osmotic
D)   hypertonic
E)   saturatedF) A) and C)
G) A) and E)

Question 15

In the set-up shown in the figure below, which of the following statements would describe what would be observed after 12 hours of time have elapsed?

Accepted Answer

A)   The level of the solution in the tube would rise because there are now more dissolved solutes present in the beaker than in the tube.
B)   The level of the solution in the tube would lower because the glucose and salt would move into the tube.
C)   The level of the solution in the tube would rise because there are now more dissolved solutes in the tube than the beaker.
D)   The level of the solution would not change as the membrane prohibits any exchange between tube and the beaker.
E)   The level of solution in the tubes would see no change because the solute levels are equal on both sides.F) A) and E)
G) B) and D)

Question 16

Which of the following shows the flow of energy at the cellular level through the biosphere?

Accepted Answer

A)   solar energy - mitochondria - chloroplast
B)   chloroplast - solar energy - mitochondria
C)   solar energy - chloroplast - mitochondria
D)   mitochondria - solar energy - chloroplast
E)   chloroplast - mitochondria - solar energyF) A) and E)
G) B) and D)

Question 17

A white blood cell surrounds and engulfs a worn-out red blood cell, forming a vesicle around the red blood cell. This process is called ________.

Accepted Answer

A)   active transport
B)   phagocytosis
C)   exocytosis
D)   pinocytosis
E)   facilitated diffusionF) B) and E)
G) None of the above

Exam 5: The Dynamic Cell

In the following figure, which cell exhibits the condition of plant cells that have been placed in a hypertonic environment?

Correct Answer
verified

Which of the following is an example of osmosis?

Correct Answer
verified

What process typically regulates the enzymes involved in metabolic reactions?

Correct Answer
verified

Which of these words does not belong with the rest as it relates to concentration gradient?

Correct Answer
verified

In the set-up shown in the figure below, which of the following statements would describe what would be observed after 12 hours of time have elapsed?

Correct Answer
verified

Which of the following shows the flow of energy at the cellular level through the biosphere?

Correct Answer
verified

What prevents a plant cell from bursting in a hypotonic solution?

Correct Answer
verified

Simple diffusion across a plasma membrane is called passive transport because it ________.

Correct Answer
verified

Correct Answer
verified

Enzymes are named based on the substrate that they bind; this is possible because

Correct Answer
verified

Which of the following enables a cell to pick up and concentrate a specific type of molecule?

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

Metabolic pathways are known for all of the following except

Correct Answer
verified

Which of the following statements reflects what occurs in the flow of energy conversions through living systems?

Correct Answer
verified

A white blood cell surrounds and engulfs a worn-out red blood cell, forming a vesicle around the red blood cell. This process is called ________.

Correct Answer
verified

The second law of thermodynamics states that all energy transformations result in more disordered energy. How do living organisms, which depend on chemical potential converting to kinetic energy to fuel their function, continue to live?

Correct Answer
verified

The changing of an enzyme's shape as the substrate binds to the active site is called the

Correct Answer
verified

Exam 5: The Dynamic Cell

In the following figure, which cell exhibits the condition of plant cells that have been placed in a hypertonic environment?

Correct AnswerverifiedShow Answer

Which of the following is an example of osmosis?

Correct AnswerverifiedShow Answer

What process typically regulates the enzymes involved in metabolic reactions?

Correct AnswerverifiedShow Answer

Which of these words does not belong with the rest as it relates to concentration gradient?

Correct AnswerverifiedShow Answer

In the set-up shown in the figure below, which of the following statements would describe what would be observed after 12 hours of time have elapsed?

Correct AnswerverifiedShow Answer

Which of the following shows the flow of energy at the cellular level through the biosphere?

Correct AnswerverifiedShow Answer

What prevents a plant cell from bursting in a hypotonic solution?

Correct AnswerverifiedShow Answer

Simple diffusion across a plasma membrane is called passive transport because it ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Enzymes are named based on the substrate that they bind; this is possible because

Correct AnswerverifiedShow Answer

Which of the following enables a cell to pick up and concentrate a specific type of molecule?

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

Metabolic pathways are known for all of the following except

Correct AnswerverifiedShow Answer

Which of the following statements reflects what occurs in the flow of energy conversions through living systems?

Correct AnswerverifiedShow Answer

A white blood cell surrounds and engulfs a worn-out red blood cell, forming a vesicle around the red blood cell. This process is called ________.

Correct AnswerverifiedShow Answer

The second law of thermodynamics states that all energy transformations result in more disordered energy. How do living organisms, which depend on chemical potential converting to kinetic energy to fuel their function, continue to live?

Correct AnswerverifiedShow Answer

The changing of an enzyme's shape as the substrate binds to the active site is called the

Correct AnswerverifiedShow Answer

Correct Answer
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