Question 1

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",what does the deletion of the two base pairs in the genomes of six widely dispersed human populations,and the presence of the two base pairs in non-human primates reveal?

Accepted Answer

A)  The two bases were insertions in the non-human primates.
B)  The deletion occurred before the branch between humans and non-human primates.
C)  The deletion occurred multiple non-human primates.
D)  The deletion occurred at least six times in different human populations.
E)  The deletion occurred after the branch between humans and non-human primates.F) D) and E)
G) A) and B)

Question 2

A condition in which bones become less dense is

Accepted Answer

A)  gigantism.
B)  acromegaly.
C)  osteoarthritis.
D)  rheumatism.
E)  osteoporosis.F) A) and D)
G) B) and E) E

Question 3

If you placed an electrode on a person's triceps and stimulated the muscle,which of the following would occur?

Accepted Answer

A)  They would not be able to straighten their leg.
B)  They would not be able to straighten their arm.
C)  They would not be able to bend their leg.
D)  They would not be able to bend their arm.E) None of the above
F) All of the above

Question 4

The breast muscle of a wild duck is dark,while that of a domesticated chicken is white.What would be true of breast muscle in a domesticated chicken?

Accepted Answer

A)  They are fast-twitch muscles with few capillaries or mitochondriA.
B)  They are slow-twitch muscles with abundant capillaries and mitochondria.
C)  They are slow-twitch muscles with few capillaries or mitochondria.
D)  They are fast-twitch muscles with abundant capillaries and mitochondria.E) A) and D)
F) All of the above A

Question 5

______ keep(s) urine inside the bladder and ______ expel(s) urine from the bladder.

Accepted Answer

A)  Bone;muscles
B)  Tendons;ligaments
C)  Ligaments;tendons
D)  Cartilage;muscle
E)  Muscle;muscleF) A) and E)
G) A) and D)

Question 6

After a muscle cell contracts,which of the following must occur for the muscle to stop contracting?

Accepted Answer

A)  Calcium ions must be pumped back into the endoplasmic reticulum.
B)  Calcium ions must be pumped out of the muscle cell.
C)  Calcium ions must flow out of the endoplasmic reticulum.
D)  Calcium ions must flow into the muscle cell.
E)  Calcium ions must flow out of the muscle cell.F) C) and E)
G) A) and E)

Question 7

The interaction of both the muscular system and the skeletal system is necessary for animals to run,fly,and swim.

Accepted Answer

A) True 
 B)False

Question 8

Fermentation does not require oxygen to generate ATP and is almost as efficient as aerobic respiration in generating ATP in muscle cells.

Accepted Answer

A) True 
 B)False  False

Question 9

You are trying out for the USA Olympic gymnastics team.Everything is going well until you turn your ankle on the landing and tear a connection between two bones.Now you will have to wait another four years.Which of the following could you have done to your ankle?

Accepted Answer

A)  sprained a ligament
B)  strained a ligament
C)  sprained a tendon
D)  strained a tendonE) None of the above
F) A) and D)

Question 10

What keeps your head held up and not drooped forward towards your chest when you are awake?

Accepted Answer

A)  nervous tissue
B)  skeletal muscle
C)  cartilage
D)  bone
E)  tendonsF) A) and D)
G) B) and D)

Question 11

The type of skeleton that consists of fluid constrained within a layer of flexible tissue is a(n)

Accepted Answer

A)  vascular canal.
B)  endoskeleton.
C)  gastrovascular cavity.
D)  exoskeleton.
E)  hydrostatic skeleton.F) B) and D)
G) A) and D)

Question 12

Ligaments are connective tissues that connect _______________ to _________________.

Accepted Answer

A)  muscle;muscle
B)  muscle;bone
C)  tendons;bone
D)  bone;bone
E)  cartilage;boneF) C) and E)
G) B) and E)

Question 13

The axial skeleton consists of the limbs and the bones that support them.

Accepted Answer

A) True 
 B)False

Question 14

After death,muscles remain in a stiff position for several hours.This stiff position is called

Accepted Answer

A)  osteoarthritis.
B)  rheumatoid arthritis.
C)  rigor mortis.
D)  osteoporosis.
E)  flaccid paralysis.F) B) and D)
G) A) and C)

Question 15

An autoimmune disorder in which there is chronic inflammation of the synovial membrane of a joint is

Accepted Answer

A)  osteoarthritis.
B)  scoliosis.
C)  rheumatoid arthritis.
D)  osteoporosis.
E)  acromegaly.F) None of the above
G) B) and D)

Question 16

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",how is the temporalis muscle attached to the skull and jaw?

Accepted Answer

A)  myosin
B)  ligaments
C)  neurons
D)  tendons
E)  actinF) A) and B)
G) B) and E)

Question 17

A disorder of old age in which joint cartilage wears away,exposing bone to bone,is

Accepted Answer

A)  acromegaly.
B)  rheumatoid arthritis.
C)  scoliosis.
D)  osteoporosis.
E)  osteoarthritis.F) D) and E)
G) B) and C)

Question 18

The type of skeleton that is usually composed of either a calcium-containing shell or chitin is a(n)

Accepted Answer

A)  endoskeleton.
B)  exoskeleton.
C)  hydrostatic skeleton.
D)  gastrovascular cavity.
E)  vascular canal.F) A) and E)
G) A) and C)

Question 19

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",what did the researchers propose as the selective advantage for a smaller temporalis muscle?

Accepted Answer

A)  Humans could eat softer foods.
B)  The brain could become larger.
C)  It would take less energy to move the muscle.
D)  It would enable speech.
E)  It forced humans to develop tools to cook their food.F) A) and B)
G) All of the above

Question 20

Bones regulate calcium homeostasis.

Accepted Answer

A) True 
 B)False

Exam 26: The Skeletal and Muscular Systems

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",what does the deletion of the two base pairs in the genomes of six widely dispersed human populations,and the presence of the two base pairs in non-human primates reveal?

Correct AnswerverifiedShow Answer

A condition in which bones become less dense is

Correct AnswerverifiedE

If you placed an electrode on a person's triceps and stimulated the muscle,which of the following would occur?

Correct AnswerverifiedShow Answer

The breast muscle of a wild duck is dark,while that of a domesticated chicken is white.What would be true of breast muscle in a domesticated chicken?

Correct AnswerverifiedA

______ keep(s) urine inside the bladder and ______ expel(s) urine from the bladder.

Correct AnswerverifiedShow Answer

After a muscle cell contracts,which of the following must occur for the muscle to stop contracting?

Correct AnswerverifiedShow Answer

The interaction of both the muscular system and the skeletal system is necessary for animals to run,fly,and swim.

Correct AnswerverifiedShow Answer

Fermentation does not require oxygen to generate ATP and is almost as efficient as aerobic respiration in generating ATP in muscle cells.

Correct AnswerverifiedFalse

You are trying out for the USA Olympic gymnastics team.Everything is going well until you turn your ankle on the landing and tear a connection between two bones.Now you will have to wait another four years.Which of the following could you have done to your ankle?

Correct AnswerverifiedShow Answer

What keeps your head held up and not drooped forward towards your chest when you are awake?

Correct AnswerverifiedShow Answer

The type of skeleton that consists of fluid constrained within a layer of flexible tissue is a(n)

Correct AnswerverifiedShow Answer

Ligaments are connective tissues that connect _______________ to _________________.

Correct AnswerverifiedShow Answer

The axial skeleton consists of the limbs and the bones that support them.

Correct AnswerverifiedShow Answer

After death,muscles remain in a stiff position for several hours.This stiff position is called

Correct AnswerverifiedShow Answer

An autoimmune disorder in which there is chronic inflammation of the synovial membrane of a joint is

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",how is the temporalis muscle attached to the skull and jaw?

Correct AnswerverifiedShow Answer

A disorder of old age in which joint cartilage wears away,exposing bone to bone,is

Correct AnswerverifiedShow Answer

The type of skeleton that is usually composed of either a calcium-containing shell or chitin is a(n)

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",what did the researchers propose as the selective advantage for a smaller temporalis muscle?

Correct AnswerverifiedShow Answer

Bones regulate calcium homeostasis.

Correct AnswerverifiedShow Answer

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A

keep(s) urine inside the bladder and expel(s) urine from the bladder.

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False

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Ligaments are connective tissues that connect _ to ___.

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