Question 1

Which of these lists the structures, in the correct sequence, that light must pass through in order to reach the photoreceptors of the human eye?

Accepted Answer

A)  retina→lens→pupil→cornea 
B)  lens→cornea→pupil→retina 
C)  lens→pupil→cornea→retina 
D)  cornea→lens→pupil→retina 
E)  cornea→pupil→lens→retina 
A)  retina→lens→pupil→cornea 
B)  lens→cornea→pupil→retina 
C)  lens→pupil→cornea→retina 
D)  cornea→lens→pupil→retina 
E)  cornea→pupil→lens→retina

Question 2

Which sense requires the stimulation of chemoreceptors?

Accepted Answer

A)  hearing 
B)  smell 
C)  balance 
D)  vision 
E)  touch 
A)  hearing 
B)  smell 
C)  balance 
D)  vision 
E)  touch

Question 3

Which of these puts the steps of sliding filament model of muscle contraction in the correct order?

Accepted Answer

A)  ATP is hydrolyzed as myosin heads bind the actin filament→myosin heads bind ATP→ADP + P are released and the myosin heads pull the actin filament 
B)  Myosin heads bind ATP→ATP is hydrolyzed as myosin heads bind the actin filament→ADP + P are released and the myosin heads pull the actin filament. 
C)  ADP + P are released and the myosin heads pull the actin filament→ATP is hydrolyzed as myosin heads bind the actin filament→myosin heads bind ATP. 
D)  Myosin heads bind ATP→ ADP + P are released and the myosin heads pull the actin filament→ATP is hydrolyzed as myosin heads bind the actin filament. 
E)  ATP is hydrolyzed as myosin heads bind the actin filament→ADP + P are released and the myosin heads pull the actin filament→myosin heads bind ATP. 
A)  ATP is hydrolyzed as myosin heads bind the actin filament→myosin heads bind ATP→ADP + P are released and the myosin heads pull the actin filament 
B)  Myosin heads bind ATP→ATP is hydrolyzed as myosin heads bind the actin filament→ADP + P are released and the myosin heads pull the actin filament. 
C)  ADP + P are released and the myosin heads pull the actin filament→ATP is hydrolyzed as myosin heads bind the actin filament→myosin heads bind ATP. 
D)  Myosin heads bind ATP→ ADP + P are released and the myosin heads pull the actin filament→ATP is hydrolyzed as myosin heads bind the actin filament. 
E)  ATP is hydrolyzed as myosin heads bind the actin filament→ADP + P are released and the myosin heads pull the actin filament→myosin heads bind ATP.

Question 4

You are taking notes in lecture, writing as fast as you can, when suddenly your hand become so stiff that you can't write any more! You pull the pencil from between your frozen fingers with your other hand, and after a few worried moments your hand is able to relax again. What happened?

Accepted Answer

A)  The muscles in your hand depleted their supply of ATP, and the myosin heads could not detach from actin. 
B)  The muscles in your hand depleted their supply of acetylcholinesterase. 
C)  The muscles in your hand depleted their supply of Ca2+, and the myosin heads could not attach to actin. 
D)  The actin and myosin filaments in your hand muscles became detached from their Z lines. 
E)  The motor neurons stimulating your hand muscles depleted their supply of acetylcholine. 
A)  The muscles in your hand depleted their supply of ATP, and the myosin heads could not detach from actin. 
B)  The muscles in your hand depleted their supply of acetylcholinesterase. 
C)  The muscles in your hand depleted their supply of Ca2+, and the myosin heads could not attach to actin. 
D)  The actin and myosin filaments in your hand muscles became detached from their Z lines. 
E)  The motor neurons stimulating your hand muscles depleted their supply of acetylcholine.

Question 5

Which bones articulate at the joint stabilized by the rotator cuff?

Accepted Answer

A)  humerus and scapula 
B)  coxal bone and femur 
C)  radius and humerus 
D)  femur and tibia 
E)  scapula and clavicle 
A)  humerus and scapula 
B)  coxal bone and femur 
C)  radius and humerus 
D)  femur and tibia 
E)  scapula and clavicle

Question 6

In the figure shown here, which of the following is the sclera?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 7

Skeletal muscles do not

Accepted Answer

A)  assist the movement of blood. 
B)  store calcium and fat. 
C)  help maintain body temperature. 
D)  protect internal organs. 
E)  enable the movement of body parts. 
A)  assist the movement of blood. 
B)  store calcium and fat. 
C)  help maintain body temperature. 
D)  protect internal organs. 
E)  enable the movement of body parts.

Question 8

Which of these statements about contracting muscles is incorrect?

Accepted Answer

A)  A contracting muscle shortens. 
B)  A contracting muscle uses cellular energy. 
C)  A contracting muscle may work as part of an antagonistic pair. 
D)  A contracting muscle can only push, it cannot pull. 
E)  A contracting muscle cannot push, it can only pull. 
A)  A contracting muscle shortens. 
B)  A contracting muscle uses cellular energy. 
C)  A contracting muscle may work as part of an antagonistic pair. 
D)  A contracting muscle can only push, it cannot pull. 
E)  A contracting muscle cannot push, it can only pull.

Question 9

Which sense is found in all animals, and is thought to be the most primitive sense?

Accepted Answer

A)  photoreception 
B)  mechanoreception 
C)  chemoreception 
D)  hearing 
E)  proprioception 
A)  photoreception 
B)  mechanoreception 
C)  chemoreception 
D)  hearing 
E)  proprioception

Question 10

The contractile units of skeletal muscle are the

Accepted Answer

A)  myofibrils. 
B)  sarcomeres. 
C)  sarcolemma. 
D)  sarcoplasmic reticulum. 
E)  osteons. 
A)  myofibrils. 
B)  sarcomeres. 
C)  sarcolemma. 
D)  sarcoplasmic reticulum. 
E)  osteons.

Question 11

Which bone belongs to the appendicular skeleton?

Accepted Answer

A)  skull 
B)  vertebra 
C)  rib 
D)  sternum 
E)  scapula 
A)  skull 
B)  vertebra 
C)  rib 
D)  sternum 
E)  scapula

Question 12

Which of these is mismatched?

Accepted Answer

A)  utricle - ear 
B)  taste bud - tongue 
C)  tympanic membrane - ear 
D)  fovea - eye 
E)  ossicles - joints 
A)  utricle - ear 
B)  taste bud - tongue 
C)  tympanic membrane - ear 
D)  fovea - eye 
E)  ossicles - joints

Question 13

The structural unit of compact bone is the

Accepted Answer

A)  osteoclast. 
B)  osteocyte. 
C)  osteon. 
D)  osteoblast. 
E)  sarcomere. 
A)  osteoclast. 
B)  osteocyte. 
C)  osteon. 
D)  osteoblast. 
E)  sarcomere.

Question 14

Which statement about the spiral organ is incorrect?

Accepted Answer

A)  Its hair cells synapse with the cochlear nerve. 
B)  Each part is responsive to a different pitch. 
C)  It is found in the cochlea. 
D)  It contains the sensory receptors for hearing. 
E)  It has two main parts: the utricle and the saccule. 
A)  Its hair cells synapse with the cochlear nerve. 
B)  Each part is responsive to a different pitch. 
C)  It is found in the cochlea. 
D)  It contains the sensory receptors for hearing. 
E)  It has two main parts: the utricle and the saccule.

Question 15

If you want to prevent osteoporosis and strengthen muscles, your best approach would be to

Accepted Answer

A)  eat foods rich in vitamin A. 
B)  exercise. 
C)  take calcium supplements. 
D)  lose weight. 
E)  seek medical treatment. 
A)  eat foods rich in vitamin A. 
B)  exercise. 
C)  take calcium supplements. 
D)  lose weight. 
E)  seek medical treatment.

Question 16

You can tell "up" from "down" even when your eyes are closed. This is due to your

Accepted Answer

A)  rotational equilibrium. 
B)  statocysts. 
C)  sense of hearing. 
D)  lateral line system. 
E)  gravitational equilibrium. 
A)  rotational equilibrium. 
B)  statocysts. 
C)  sense of hearing. 
D)  lateral line system. 
E)  gravitational equilibrium.

Question 17

The spaces in the ends of a long bone such as the femur contain

Accepted Answer

A)  yellow bone marrow. 
B)  plasma. 
C)  osteocytes. 
D)  osteons. 
E)  red bone marrow. 
A)  yellow bone marrow. 
B)  plasma. 
C)  osteocytes. 
D)  osteons. 
E)  red bone marrow.

Question 18

In a sarcomere, thick filaments are composed of _____ and thin filaments of _____.

Accepted Answer

A)  actin; myosin 
B)  sarcoplasm; actin 
C)  myosin; actin 
D)  Z lines; T tubules 
E)  myosin; sarcolemma 
A)  actin; myosin 
B)  sarcoplasm; actin 
C)  myosin; actin 
D)  Z lines; T tubules 
E)  myosin; sarcolemma

Question 19

In order to lift a book from a table, your _____ must contract; to put the book back down, the _____ must contract.

Accepted Answer

A)  meniscus; bursa 
B)  biceps; triceps 
C)  actin filament; myosin filament 
D)  bursa; meniscus 
E)  triceps; biceps 
A)  meniscus; bursa 
B)  biceps; triceps 
C)  actin filament; myosin filament 
D)  bursa; meniscus 
E)  triceps; biceps

Question 20

Your skeleton is a(n)

Accepted Answer

A)  exoskeleton. 
B)  hydrostatic skeleton. 
C)  cartilaginous skeleton. 
D)  endoskeleton. 
E)  osteon. 
A)  exoskeleton. 
B)  hydrostatic skeleton. 
C)  cartilaginous skeleton. 
D)  endoskeleton. 
E)  osteon.

Exam 28: Sensory Input and Motor Output

Which of these lists the structures, in the correct sequence, that light must pass through in order to reach the photoreceptors of the human eye?

Which sense requires the stimulation of chemoreceptors?

Which of these puts the steps of sliding filament model of muscle contraction in the correct order?

You are taking notes in lecture, writing as fast as you can, when suddenly your hand become so stiff that you can't write any more! You pull the pencil from between your frozen fingers with your other hand, and after a few worried moments your hand is able to relax again. What happened?

Which bones articulate at the joint stabilized by the rotator cuff?

In the figure shown here, which of the following is the sclera?

Skeletal muscles do not

Which of these statements about contracting muscles is incorrect?

Which sense is found in all animals, and is thought to be the most primitive sense?

The contractile units of skeletal muscle are the

Which bone belongs to the appendicular skeleton?

Which of these is mismatched?

The structural unit of compact bone is the

Which statement about the spiral organ is incorrect?

If you want to prevent osteoporosis and strengthen muscles, your best approach would be to

You can tell "up" from "down" even when your eyes are closed. This is due to your

The spaces in the ends of a long bone such as the femur contain

In a sarcomere, thick filaments are composed of _____ and thin filaments of _____.

In order to lift a book from a table, your _____ must contract; to put the book back down, the _____ must contract.

Your skeleton is a(n)

A View of Life

The Chemical Basis of Life

The Organic Molecules of Life

Inside the Cell

The Dynamic Cell

Energy for Life

Energy for Cells

Cellular Reproduction

Sexual Reproduction

Patterns of Inheritance

DNA Biology and Technology

Gene Regulation and Cancer

Genetic Counseling

Darwin and Evolution

Evolution on a Small Scale

Evolution on a Large Scale

The Microorganisms: Viruses, Bacteria, and Protists

Land Environment: Plants and Fungi

Both Water and Land: Animals

Plant Anatomy and Growth

Plant Structure and Function

Being Organized and Steady

The Transport Systems

The Maintenance Systems

Human Nutrition

Defenses Against Diseases

Control Systems

Reproduction and Development

Ecology and Populations

Communities and Ecosystems

Human Impact on the Biosphere

Filters

In a sarcomere, thick filaments are composed of _ and thin filaments of _.

In order to lift a book from a table, your _ must contract; to put the book back down, the _ must contract.