Question 1

Some antibiotics target enzymes specific to bacteria.  Some work by binding to the active site and; therefore,act as noncompetitive inhibitors.

Accepted Answer

A) True 
 B)False

Question 2

Active transport is different from simple diffusion because active transport

Accepted Answer

A)  requires energy. 
B)  moves molecules against a concentration gradient. 
C)  requires the use of proteins embedded within the cell membrane. 
D)  moves molecules from an area of lower concentration to an area of higher concentration. 
E)  All answers are correct. 
A)  requires energy. 
B)  moves molecules against a concentration gradient. 
C)  requires the use of proteins embedded within the cell membrane. 
D)  moves molecules from an area of lower concentration to an area of higher concentration. 
E)  All answers are correct.

Question 3

The amount of energy required to raise the temperature of one gram of water by one degree Celsius is a

Accepted Answer

A)  calorie. 
B)  joule. 
C)  kilocalorie. 
D)  measure of density. 
E)  measure of light. 
A)  calorie. 
B)  joule. 
C)  kilocalorie. 
D)  measure of density. 
E)  measure of light.

Question 4

Which of the following statements is incorrect about turgor pressure?

Accepted Answer

A)  It occurs in organisms with cell walls when placed into a hypertonic environment. 
B)  It is necessary to keep plants from wilting. 
C)  It is the force of water against the inside of the cell wall. 
D)  It is maintained by osmosis. 
E)  It occurs organisms with cell walls when placed into a hypotonic environment. 
A)  It occurs in organisms with cell walls when placed into a hypertonic environment. 
B)  It is necessary to keep plants from wilting. 
C)  It is the force of water against the inside of the cell wall. 
D)  It is maintained by osmosis. 
E)  It occurs organisms with cell walls when placed into a hypotonic environment.

Question 5

Plants require energy from light to perform photosynthesis in which glucose is formed from carbon dioxide and water.This is an example of

Accepted Answer

A)  a reaction that releases energy. 
B)  kinetic energy. 
C)  a reaction that takes up energy. 
D)  potential energy. 
E)  equilibrium. 
A)  a reaction that releases energy. 
B)  kinetic energy. 
C)  a reaction that takes up energy. 
D)  potential energy. 
E)  equilibrium.

Question 6

A ball at the top of a hill is an example of ________ and a ball rolling down the hill is an example of ________.

Accepted Answer

A)  potential energy; kinetic energy 
B)  kinetic energy; potential energy 
C)  exergonic reaction; endergonic reaction 
D)  noncompetitive inhibition; competitive inhibition 
E)  competitive inhibition; noncompetitive inhibition 
A)  potential energy; kinetic energy 
B)  kinetic energy; potential energy 
C)  exergonic reaction; endergonic reaction 
D)  noncompetitive inhibition; competitive inhibition 
E)  competitive inhibition; noncompetitive inhibition

Question 7

Energy sometimes appears spontaneously in living systems.

Accepted Answer

A) True 
 B)False

Question 8

Changes in the tide level can cover plants and animals that would usually not be covered by seawater.The exposure to seawater would result in the cells

Accepted Answer

A)  bursting by osmosis of water. 
B)  dehydrating by facilitated diffusion of salts. 
C)  dehydrating by osmosis of water. 
D)  bursting by active transport of salts. 
E)  dehydrating by active transport of salts. 
A)  bursting by osmosis of water. 
B)  dehydrating by facilitated diffusion of salts. 
C)  dehydrating by osmosis of water. 
D)  bursting by active transport of salts. 
E)  dehydrating by active transport of salts.

Question 9

After ATP donates a phosphate group to a coupled reaction,then it becomes ADP.The ADP

Accepted Answer

A)  can be recharged with the release of energy to form ATP. 
B)  is a waste product that will be broken down. 
C)  can be recharged in an equilibrium reaction to form ATP. 
D)  can be recharged in an oxidation reaction to form ATP. 
E)  can be recharged with the uptake of energy to form ATP. 
A)  can be recharged with the release of energy to form ATP. 
B)  is a waste product that will be broken down. 
C)  can be recharged in an equilibrium reaction to form ATP. 
D)  can be recharged in an oxidation reaction to form ATP. 
E)  can be recharged with the uptake of energy to form ATP.

Question 10

The energy source that powers photosynthesis is

Accepted Answer

A)  water. 
B)  glucose. 
C)  carbon dioxide. 
D)  sunlight. 
E)  oxygen. 
A)  water. 
B)  glucose. 
C)  carbon dioxide. 
D)  sunlight. 
E)  oxygen.

Question 11

Cells use energy for which of the following?

Accepted Answer

A)  to do work 
B)  to synthesize proteins 
C)  to expel waste 
D)  to move substances across membranes 
E)  All of the answer choices are correct. 
A)  to do work 
B)  to synthesize proteins 
C)  to expel waste 
D)  to move substances across membranes 
E)  All of the answer choices are correct.

Question 12

Which of the following are examples of potential energy?

Accepted Answer

A)  electrons moving through the electron transport chain, proton gradient 
B)  electrons in chemical bonds, proton gradient, ATP 
C)  protons moving through ATP synthase, ATP 
D)  electrons moving through the electron transport chain, and protons moving through ATP synthase 
E)  All answer choices are correct. 
A)  electrons moving through the electron transport chain, proton gradient 
B)  electrons in chemical bonds, proton gradient, ATP 
C)  protons moving through ATP synthase, ATP 
D)  electrons moving through the electron transport chain, and protons moving through ATP synthase 
E)  All answer choices are correct.

Question 13

Reduction is

Accepted Answer

A)  the gain of oxygen by a cell. 
B)  the loss of oxygen from a cell. 
C)  the gain of electrons by an atom or molecule. 
D)  the loss of electrons by an atom or molecule. 
E)  the loss of protons by an atom or molecule. 
A)  the gain of oxygen by a cell. 
B)  the loss of oxygen from a cell. 
C)  the gain of electrons by an atom or molecule. 
D)  the loss of electrons by an atom or molecule. 
E)  the loss of protons by an atom or molecule.

Question 14

In most cases,the chemical structure of enzymes represents a(an)

Accepted Answer

A)  carbohydrate. 
B)  lipid. 
C)  ion. 
D)  protein. 
E)  inorganic molecule. 
A)  carbohydrate. 
B)  lipid. 
C)  ion. 
D)  protein. 
E)  inorganic molecule.

Question 15

Phagocytosis is the process used by cells to bring in small amounts of fluid.

Accepted Answer

A) True 
 B)False

Question 16

Noncompetitive inhibition of enzymes occurs

Accepted Answer

A)  when a substance other than the correct substrate binds at the active site of an enzyme. 
B)  when a substance binds to an enzyme at a site away from the active site. 
C)  by denaturation of an enzyme. 
D)  by blocking the production of an enzyme. 
E)  when two enzymes bind together. 
A)  when a substance other than the correct substrate binds at the active site of an enzyme. 
B)  when a substance binds to an enzyme at a site away from the active site. 
C)  by denaturation of an enzyme. 
D)  by blocking the production of an enzyme. 
E)  when two enzymes bind together.

Question 17

If you drop a rubber ball and it does not bounce back to the height you dropped it from.This is consistent with

Accepted Answer

A)  conversion of entropy into potential energy. 
B)  energy being neither created nor destroyed. 
C)  conversion of kinetic energy into potential energy. 
D)  conversion of kinetic energy into entropy. 
E)  the tendency to increase disorder. 
A)  conversion of entropy into potential energy. 
B)  energy being neither created nor destroyed. 
C)  conversion of kinetic energy into potential energy. 
D)  conversion of kinetic energy into entropy. 
E)  the tendency to increase disorder.

Question 18

Enzymes speed up chemical reactions.

Accepted Answer

A) True 
 B)False

Question 19

If a cell contains 95% water in its cytoplasm and the environment surrounding the cell contains 90% water will flow

Accepted Answer

A)  into the cell by osmosis. 
B)  out of the cell by active transport. 
C)  out of the cell by osmosis. 
D)  into the cell by active transport. 
E)  into the cell by facilitated diffusion. 
A)  into the cell by osmosis. 
B)  out of the cell by active transport. 
C)  out of the cell by osmosis. 
D)  into the cell by active transport. 
E)  into the cell by facilitated diffusion.

Question 20

When electrons are removed from a food molecule,the molecule is

Accepted Answer

A)  reduced. 
B)  in equilibrium. 
C)  oxidized. 
D)  polymerized. 
E)  conducting an endergonic reaction. 
A)  reduced. 
B)  in equilibrium. 
C)  oxidized. 
D)  polymerized. 
E)  conducting an endergonic reaction.

Exam 4: The Energy of Life

Some antibiotics target enzymes specific to bacteria. Some work by binding to the active site and; therefore,act as noncompetitive inhibitors.

Active transport is different from simple diffusion because active transport

The amount of energy required to raise the temperature of one gram of water by one degree Celsius is a

Which of the following statements is incorrect about turgor pressure?

Plants require energy from light to perform photosynthesis in which glucose is formed from carbon dioxide and water.This is an example of

A ball at the top of a hill is an example of ________ and a ball rolling down the hill is an example of ________.

Energy sometimes appears spontaneously in living systems.

Changes in the tide level can cover plants and animals that would usually not be covered by seawater.The exposure to seawater would result in the cells

After ATP donates a phosphate group to a coupled reaction,then it becomes ADP.The ADP

The energy source that powers photosynthesis is

Cells use energy for which of the following?

Which of the following are examples of potential energy?

Reduction is

In most cases,the chemical structure of enzymes represents a(an)

Phagocytosis is the process used by cells to bring in small amounts of fluid.

Noncompetitive inhibition of enzymes occurs

If you drop a rubber ball and it does not bounce back to the height you dropped it from.This is consistent with

Enzymes speed up chemical reactions.

If a cell contains 95% water in its cytoplasm and the environment surrounding the cell contains 90% water will flow

When electrons are removed from a food molecule,the molecule is

The Scientific Study of Life

The Chemistry of Life

Cells

Photosynthesis

Respiration and Fermentation

DNA Structure and Gene Function

DNA Replication,Binary Fission,and Mitosis

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Populations

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

The Digestive and Urinary Systems

The Immune System

Animal Reproduction and Development

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A ball at the top of a hill is an example of and a ball rolling down the hill is an example of .