Question 1

Refer to the figure above and then answer the quesiton that follows.
-Which of the following, if given enough time, could happen spontaneously?

Accepted Answer

A)  glycogen breaking down into many glucose molecules 
B)  nucleotides forming DNA 
C)  amino acids forming proteins 
D)  glucose molecules forming starch 
A)  glycogen breaking down into many glucose molecules 
B)  nucleotides forming DNA 
C)  amino acids forming proteins 
D)  glucose molecules forming starch

Question 2

________ is an example of kinetic energy, and ________ is an example of potential energy.

Accepted Answer

A)  A rock on top of a hill; a rock rolling down the hill 
B)  A loaded gun; a flying bullet 
C)  Fire; a piece of wood 
A)  A rock on top of a hill; a rock rolling down the hill 
B)  A loaded gun; a flying bullet 
C)  Fire; a piece of wood

Question 3

During muscle contraction:

Accepted Answer

A)  ATP is produced by the joining of a free phosphate group to ADP. 
B)  the myofibrils relax. 
C)  the myofibrils shorten because of the power stroke. 
D)  the muscle elongates. 
A)  ATP is produced by the joining of a free phosphate group to ADP. 
B)  the myofibrils relax. 
C)  the myofibrils shorten because of the power stroke. 
D)  the muscle elongates.

Question 4

Which of the following reactions would produce product(s) with more energy than the substrate(s)?

Accepted Answer

A)  breaking glucose molecules off glycogen 
B)  adding a phosphate group to ADP to form ATP 
C)  lactase breaking lactose down into glucose and galactose 
A)  breaking glucose molecules off glycogen 
B)  adding a phosphate group to ADP to form ATP 
C)  lactase breaking lactose down into glucose and galactose

Question 5

When a product binds to an allosteric enzyme to slow its reaction, it does which of the following?

Accepted Answer

A)  binds to the active site, blocking the binding of substrate 
B)  binds to a site other than the active site, changing the shape of the active site and decreasing the binding of substrate 
C)  binds to the substrate, blocking its binding of the active site 
D)  binds to the product production site, stopping the production of product 
A)  binds to the active site, blocking the binding of substrate 
B)  binds to a site other than the active site, changing the shape of the active site and decreasing the binding of substrate 
C)  binds to the substrate, blocking its binding of the active site 
D)  binds to the product production site, stopping the production of product

Question 6

Refer to the figure above and then answer the quesiton that follows.
-You have a friend who tells you she is lactose intolerant. She asks you to explain what this means. You would say to her:

Accepted Answer

A)  "You cannot digest milk because you cannot absorb it in your intestines." 
B)  "You are allergic to milk." 
C)  "You cannot digest milk because you do not have the enzyme to break down the sugar in the milk." 
D)  "You cannot digest the milk because you do not have the enzyme to break down the protein in the milk." 
E)  "You cannot digest the milk because you do not have the enzyme to break down the lipid in the milk." 
A)  "You cannot digest milk because you cannot absorb it in your intestines." 
B)  "You are allergic to milk." 
C)  "You cannot digest milk because you do not have the enzyme to break down the sugar in the milk." 
D)  "You cannot digest the milk because you do not have the enzyme to break down the protein in the milk." 
E)  "You cannot digest the milk because you do not have the enzyme to break down the lipid in the milk."

Question 7

Cells can store ATP for long periods of time.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following describes negative feedback?

Accepted Answer

A)  the acceleration of enzymatic reactions by a large concentration of substrate 
B)  the slowing of enzymatic reactions by a large concentration of substrate 
C)  the acceleration of enzymatic reactions by a large concentration of product 
D)  the slowing of enzymatic reactions by a large concentration of product 
A)  the acceleration of enzymatic reactions by a large concentration of substrate 
B)  the slowing of enzymatic reactions by a large concentration of substrate 
C)  the acceleration of enzymatic reactions by a large concentration of product 
D)  the slowing of enzymatic reactions by a large concentration of product

Question 9

Enzymes are made up of:

Accepted Answer

A)  vitamins. 
B)  sugars. 
C)  lipids. 
D)  nucleotides. 
E)  amino acids. 
A)  vitamins. 
B)  sugars. 
C)  lipids. 
D)  nucleotides. 
E)  amino acids.

Question 10

All of the following are examples of negative feedback except:

Accepted Answer

A)  a high concentration of lactose inhibiting the function of lactase. 
B)  a low concentration of lipid inhibiting lipase. 
C)  a high concentration of protein inhibiting the function of chymotrypsin. 
D)  a high concentration of glucose inhibiting sucrase. 
A)  a high concentration of lactose inhibiting the function of lactase. 
B)  a low concentration of lipid inhibiting lipase. 
C)  a high concentration of protein inhibiting the function of chymotrypsin. 
D)  a high concentration of glucose inhibiting sucrase.

Question 11

Which of the following is an example of potential energy?

Accepted Answer

A)  a car driving down the road 
B)  a man running down the street 
C)  a bird flying in the air 
D)  a loaded gun 
A)  a car driving down the road 
B)  a man running down the street 
C)  a bird flying in the air 
D)  a loaded gun

Exam 6: An Introduction to Energy

Refer to the figure above and then answer the quesiton that follows. -Which of the following, if given enough time, could happen spontaneously?

________ is an example of kinetic energy, and ________ is an example of potential energy.

During muscle contraction:

Which of the following reactions would produce product(s) with more energy than the substrate(s)?

When a product binds to an allosteric enzyme to slow its reaction, it does which of the following?

Refer to the figure above and then answer the quesiton that follows. -You have a friend who tells you she is lactose intolerant. She asks you to explain what this means. You would say to her:

Cells can store ATP for long periods of time.

Which of the following describes negative feedback?

Enzymes are made up of:

All of the following are examples of negative feedback except:

Which of the following is an example of potential energy?

A Guide to the Natural World

Chemistry, Water and PH

Lifes Components: Biological Molecules

Lifes Home: The Cell

Lifes Border: The Plasma Membrane

Deriving Energy From Food

Photosynthesis

Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

Mendel and His Discoveries

Chromosomes and Inheritance

Dna Structure and Replication

Transcription Translation and Regulation

Biotechnology

Charles Darwin, Evolutionary Thought, and the Evidence for Evolution

Microevolution

Macroevolution

The History of Life on Earth

The Evolution of Human Beings

The Diversity of Life 1

The Diversity of Life 2

The Diversity of Life 3

An Introduction to Flowering Plants

Form and Function in Flowering Plants

The Integumentary Skeletal and Muscular Systems

The Nervous and Endocrine System

The Immune System

Blood and Breath

Digestion, Nutrition and Elimination

Animal Development

Human Reproduction

Populations in Ecology

Communities in Ecology

Ecosystems and Biomes

Animal Behavior

Filters

is an example of kinetic energy, and is an example of potential energy.