Question 1

Which of these puts the steps of the 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 2

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 3

The sensory receptors found in skeletal muscles and joints are

Accepted Answer

A)  hair cells. 
B)  otoliths. 
C)  rods. 
D)  cutaneous receptors. 
E)  proprioceptors. 
A)  hair cells. 
B)  otoliths. 
C)  rods. 
D)  cutaneous receptors. 
E)  proprioceptors.

Question 4

The spiral organ is located in the

Accepted Answer

A)  vestibule. 
B)  saccule. 
C)  utricle. 
D)  cochlea. 
E)  semicircular canals. 
A)  vestibule. 
B)  saccule. 
C)  utricle. 
D)  cochlea. 
E)  semicircular canals.

Question 5

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.

Question 6

Martha is 57 years old and has been overweight for the past several years. Although she hasn't changed her daily activity level, Martha is now experiencing pain in her hips and knees. What is most likely to be the cause of Martha's discomfort?

Accepted Answer

A)  rheumatoid arthritis 
B)  sprains 
C)  strains 
D)  osteoarthritis 
E)  bursitis 
A)  rheumatoid arthritis 
B)  sprains 
C)  strains 
D)  osteoarthritis 
E)  bursitis

Question 7

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 8

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 9

Which is the more slender bone of the lower leg?

Accepted Answer

A)  radius 
B)  tibia 
C)  ulna 
D)  fibula 
E)  femur 
A)  radius 
B)  tibia 
C)  ulna 
D)  fibula 
E)  femur

Question 10

The smell of crayons always brings back fond memories of kindergarten and makes you feel happy. This is because the olfactory bulbs have direct connections with the

Accepted Answer

A)  limbic system. 
B)  thalamus. 
C)  medulla oblongata. 
D)  cochlear nerve. 
E)  vestibular system. 
A)  limbic system. 
B)  thalamus. 
C)  medulla oblongata. 
D)  cochlear nerve. 
E)  vestibular system.

Question 11

According to the sliding filament model, when muscle tissue contracts,

Accepted Answer

A)  the Z lines slide away from one another. 
B)  the myosin filaments shorten, while the actin filaments remain the same length. 
C)  the sarcomeres shorten. 
D)  the actin and myosin filaments shorten. 
E)  the T tubules shorten. 
A)  the Z lines slide away from one another. 
B)  the myosin filaments shorten, while the actin filaments remain the same length. 
C)  the sarcomeres shorten. 
D)  the actin and myosin filaments shorten. 
E)  the T tubules shorten.

Question 12

Which of the following correctly describes the structure of a compound eye?

Accepted Answer

A)  composed of many independent visual units, each of which possesses a lens to focus light rays on photoreceptors 
B)  composed of a single visual unit that possesses a lens to focus light rays on photoreceptors 
C)  composed of many independent visual units that will collectively focus light rays on a singlephotoreceptor 
D)  composed of many independent visual units, each of which possesses a lens to focus light rays on a single photoreceptor 
E)  composed of a single visual unit that possesses a lens to focus light rays on a single photoreceptor 
A)  composed of many independent visual units, each of which possesses a lens to focus light rays on photoreceptors 
B)  composed of a single visual unit that possesses a lens to focus light rays on photoreceptors 
C)  composed of many independent visual units that will collectively focus light rays on a singlephotoreceptor 
D)  composed of many independent visual units, each of which possesses a lens to focus light rays on a single photoreceptor 
E)  composed of a single visual unit that possesses a lens to focus light rays on a single photoreceptor

Question 13

You are taking notes in a 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 Ca 2+, 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 Ca 2+, 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 14

A grasshopper has a(n) _____ composed mainly of chitin.

Accepted Answer

A)  exoskeleton 
B)  hydrostatic skeleton 
C)  metaskeleton 
D)  endoskeleton 
E)  preskeleton 
A)  exoskeleton 
B)  hydrostatic skeleton 
C)  metaskeleton 
D)  endoskeleton 
E)  preskeleton

Question 15

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 16

In order for sensory receptors for hearing to be stimulated, vibrations must pass through

Accepted Answer

A)  air, then fluid, then bone. 
B)  fluid, then bone, then air. 
C)  air, then bone, then air again. 
D)  bone, then air, then fluid. 
E)  air, then bone, then fluid. 
A)  air, then fluid, then bone. 
B)  fluid, then bone, then air. 
C)  air, then bone, then air again. 
D)  bone, then air, then fluid. 
E)  air, then bone, then fluid.

Question 17

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

Accepted Answer

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

Question 18

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 19

Which of these is mismatched?

Accepted Answer

A)  cutaneous receptors - skin 
B)  rods and cones - eye 
C)  taste buds - tongue 
D)  ganglion cells and intermediate cells - ear 
E)  hair cells - lateral line 
A)  cutaneous receptors - skin 
B)  rods and cones - eye 
C)  taste buds - tongue 
D)  ganglion cells and intermediate cells - ear 
E)  hair cells - lateral line

Question 20

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

Exam 28: Sensory Input and Motor Output

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

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

The sensory receptors found in skeletal muscles and joints are

The spiral organ is located in the

Your skeleton is a(n)

Martha is 57 years old and has been overweight for the past several years. Although she hasn't changed her daily activity level, Martha is now experiencing pain in her hips and knees. What is most likely to be the cause of Martha's discomfort?

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

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

Which is the more slender bone of the lower leg?

The smell of crayons always brings back fond memories of kindergarten and makes you feel happy. This is because the olfactory bulbs have direct connections with the

According to the sliding filament model, when muscle tissue contracts,

Which of the following correctly describes the structure of a compound eye?

You are taking notes in a 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?

A grasshopper has a(n) _____ composed mainly of chitin.

Which statement about the spiral organ is incorrect?

In order for sensory receptors for hearing to be stimulated, vibrations must pass through

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

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

Which of these is mismatched?

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

Biology: the Science 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

Meiosis and the Genetic Basis of Sexual Reproduction

Patterns of Inheritance

Dna Biology

Biotechnology and Genomics

Mutations and Genetic Testing

Darwin and Evolution

Evolution on a Small Scale

Evolution on a Large Scale

Viruses, Bacteria, and Protists

Plants and Fungi

Animals

Plant Anatomy and Growth

Plant Responses and Reproduction

Being Organized and Steady

The Transport Systems

The Maintenance Systems

Digestion and Human Nutrition

Defenses Against Disease

The Control Systems

Reproduction and Embryonic Development

Ecology and Populations

Communities and Ecosystems

Human Impact on the Biosphere

Filters

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

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