Question 1

The body of a cnidarian is supported by a(n) hydrostatic skeleton.
____________________

Accepted Answer

A) True 
 B)False

Question 2

Figure 40-5
Use the figure to answer the corresponding question(s).  
-Arrange the events of muscular contraction in chronological order.
1)muscle shortens
2)calcium binds to troponin
3)filaments slide
4)T tubules are depolarized
5)acetylcholine is released
6)ATP molecule is split

Accepted Answer

A)  4 $\rightarrow$5 $\rightarrow$ 2 $\rightarrow$ 1 $\rightarrow$ 3 $\rightarrow$ 6 
B)  4$\rightarrow$ 2 $\rightarrow$ 5$\rightarrow$ 6 $\rightarrow$ 1 $\rightarrow$ 3 
C)  5 $\rightarrow$2 $\rightarrow$ 4 $\rightarrow$ 1 $\rightarrow$6 $\rightarrow$ 3 
D)  6$\rightarrow$1 $\rightarrow$5$\rightarrow$4 $\rightarrow$3 $\rightarrow$ 2 
E)  5 $\rightarrow$4 $\rightarrow$2 $\rightarrow$ 6 $\rightarrow$ 3 $\rightarrow$ 1 
A)  4 $\rightarrow$5 $\rightarrow$ 2 $\rightarrow$ 1 $\rightarrow$ 3 $\rightarrow$ 6 
B)  4$\rightarrow$ 2 $\rightarrow$ 5$\rightarrow$ 6 $\rightarrow$ 1 $\rightarrow$ 3 
C)  5 $\rightarrow$2 $\rightarrow$ 4 $\rightarrow$ 1 $\rightarrow$6 $\rightarrow$ 3 
D)  6$\rightarrow$1 $\rightarrow$5$\rightarrow$4 $\rightarrow$3 $\rightarrow$ 2 
E)  5 $\rightarrow$4 $\rightarrow$2 $\rightarrow$ 6 $\rightarrow$ 3 $\rightarrow$ 1

Question 3

Figure 40-3
Use the figure to answer the corresponding question(s).  
-In Figure 40-3, the function of the structure labeled C, particularly in small children, is:

Accepted Answer

A)  to produce blood cells. 
B)  to act as a growth center. 
C)  to provide mechanical strength. 
D)  to serve as an attachment site for tendons. 
E)  to nourish the bone tissue. 
A)  to produce blood cells. 
B)  to act as a growth center. 
C)  to provide mechanical strength. 
D)  to serve as an attachment site for tendons. 
E)  to nourish the bone tissue.

Question 4

MATCHING
Match the muscle component with its description.
a.actin
e.sarcoplasm
b.myosin
f.sarcoplasmic reticulum
c.sarcolemma
g.troponin
d.sarcomere
h.tropomyosin
-called a "thin filament"

Accepted Answer

The answer of MATCHING
Match the muscle component with its description.
a.actin
e.sarcoplasm
b.myosin
f.sarcoplasmic...

Question 5

MATCHING
Match the muscle component with its description.
a.actin
e.sarcoplasm
b.myosin
f.sarcoplasmic reticulum
c.sarcolemma
g.troponin
d.sarcomere
h.tropomyosin
-the repeating unit of muscle contraction

Accepted Answer

The answer of MATCHING
Match the muscle component with its description.
a.actin
e.sarcoplasm
b.myosin
f.sarcoplasmic...

Question 6

Smooth muscle has all of the following characteristics except:

Accepted Answer

A)  being attached to bones via tendons. 
B)  having sustained contractions. 
C)  requiring less ATP to maintain a high level of force. 
D)  contracting slowly. 
E)  having muscle fibers capable of greater shortening than striated muscle. 
A)  being attached to bones via tendons. 
B)  having sustained contractions. 
C)  requiring less ATP to maintain a high level of force. 
D)  contracting slowly. 
E)  having muscle fibers capable of greater shortening than striated muscle.

Question 7

The spinning glands of insects that make threads and silk develop from:

Accepted Answer

A)  epithelial cells. 
B)  goblet cells. 
C)  osteoblasts. 
D)  osteoclasts. 
E)  sebum. 
A)  epithelial cells. 
B)  goblet cells. 
C)  osteoblasts. 
D)  osteoclasts. 
E)  sebum.

Question 8

The function and structure of the vertebral column include all of the following except:

Accepted Answer

A)  provide for flexibility. 
B)  protect the spine. 
C)  allow passage of the spinal nerves. 
D)  increase stability of the body from the neck to the lower back. 
E)  form the pectoral girdle. 
A)  provide for flexibility. 
B)  protect the spine. 
C)  allow passage of the spinal nerves. 
D)  increase stability of the body from the neck to the lower back. 
E)  form the pectoral girdle.

Question 9

People would take calcium supplements to help them avoid:

Accepted Answer

A)  osteitis. 
B)  osteoporosis. 
C)  osteophoresis. 
D)  osteoarthritis. 
E)  osteon disease. 
A)  osteitis. 
B)  osteoporosis. 
C)  osteophoresis. 
D)  osteoarthritis. 
E)  osteon disease.

Question 10

Which of the following is not a part of the axial skeleton?

Accepted Answer

A)  skull 
B)  vertebral column 
C)  ribs 
D)  pelvis 
E)  sternum 
A)  skull 
B)  vertebral column 
C)  ribs 
D)  pelvis 
E)  sternum

Question 11

The exoskeleton of arthropods is composed of chitin.
____________________

Accepted Answer

A) True 
 B)False

Question 12

Figure 40-4
Use the figure to answer the corresponding question(s).  
-Calcium ions are commonly stored in the __________ of the muscle cell.

Accepted Answer

A)  axon 
B)  myosin 
C)  sarcoplasm 
D)  sarcoplasmic reticulum 
E)  T tubules 
A)  axon 
B)  myosin 
C)  sarcoplasm 
D)  sarcoplasmic reticulum 
E)  T tubules

Question 13

In a motor unit, a motor neuron is connected with an average of 150 muscle fibers.
____________________

Accepted Answer

A) True 
 B)False

Question 14

Skeletal systems can serve all of the following purposes except:

Accepted Answer

A)  protection. 
B)  allowing for movement. 
C)  attachment for muscles. 
D)  storage. 
E)  contraction. 
A)  protection. 
B)  allowing for movement. 
C)  attachment for muscles. 
D)  storage. 
E)  contraction.

Question 15

Figure 40-1
Use the figure to answer the corresponding question(s).  
-Refer to Figure 40-1.Which of the following structures contributes to regulation of body temperature?

Accepted Answer

A)  3 
B)  5 
C)  7 
D)  10 
E)  11 
A)  3 
B)  5 
C)  7 
D)  10 
E)  11

Question 16

Which of the following statements about keratin is false?

Accepted Answer

A)  It is a protein molecule. 
B)  It is manufactured by epidermal cells. 
C)  It gives strength to the skin. 
D)  It acts as an evaporative barrier to prevent excess water loss. 
E)  It facilitates diffusion across the body surface. 
A)  It is a protein molecule. 
B)  It is manufactured by epidermal cells. 
C)  It gives strength to the skin. 
D)  It acts as an evaporative barrier to prevent excess water loss. 
E)  It facilitates diffusion across the body surface.

Question 17

A skeletal system would include all of the following except:

Accepted Answer

A)  myofilaments. 
B)  a shell. 
C)  a fluid-filled compartment. 
D)  a system of bones. 
E)  an exoskeleton. 
A)  myofilaments. 
B)  a shell. 
C)  a fluid-filled compartment. 
D)  a system of bones. 
E)  an exoskeleton.

Question 18

Sketch and label a cross-section through human skin.Identify two differences that would occur if the skin were exposed to UV radiation.

Accepted Answer

The sketch should resemble Fig

Question 19

During contraction of your arm muscle:

Accepted Answer

A)  the I band shortens. 
B)  the H zone shortens. 
C)  the A band shortens. 
D)  the I band and the H zone shorten. 
E)  the I band, the H zone, and the A band all shorten. 
A)  the I band shortens. 
B)  the H zone shortens. 
C)  the A band shortens. 
D)  the I band and the H zone shorten. 
E)  the I band, the H zone, and the A band all shorten.

Question 20

A sprinter would have a high proportion of __________, and a marathon runner would have a high proportion of __________.

Accepted Answer

A)  red fibers; white fibers 
B)  fast-oxidative fibers; slow-oxidative fibers 
C)  red fibers; fast-oxidative fibers 
D)  red fibers; slow-oxidative fibers 
E)  slow-oxidative fibers; slow-oxidative fibers 
A)  red fibers; white fibers 
B)  fast-oxidative fibers; slow-oxidative fibers 
C)  red fibers; fast-oxidative fibers 
D)  red fibers; slow-oxidative fibers 
E)  slow-oxidative fibers; slow-oxidative fibers

Exam 40: Protection, Support, and Movement

The body of a cnidarian is supported by a(n) hydrostatic skeleton. ____________________

Figure 40-5 Use the figure to answer the corresponding question(s). -Arrange the events of muscular contraction in chronological order. 1)muscle shortens 2)calcium binds to troponin 3)filaments slide 4)T tubules are depolarized 5)acetylcholine is released 6)ATP molecule is split

Figure 40-3 Use the figure to answer the corresponding question(s). -In Figure 40-3, the function of the structure labeled C, particularly in small children, is:

MATCHING Match the muscle component with its description. a.actin e.sarcoplasm b.myosin f.sarcoplasmic reticulum c.sarcolemma g.troponin d.sarcomere h.tropomyosin -called a "thin filament"

MATCHING Match the muscle component with its description. a.actin e.sarcoplasm b.myosin f.sarcoplasmic reticulum c.sarcolemma g.troponin d.sarcomere h.tropomyosin -the repeating unit of muscle contraction

Smooth muscle has all of the following characteristics except:

The spinning glands of insects that make threads and silk develop from:

The function and structure of the vertebral column include all of the following except:

People would take calcium supplements to help them avoid:

Which of the following is not a part of the axial skeleton?

The exoskeleton of arthropods is composed of chitin. ____________________

Figure 40-4 Use the figure to answer the corresponding question(s). -Calcium ions are commonly stored in the __________ of the muscle cell.

In a motor unit, a motor neuron is connected with an average of 150 muscle fibers. ____________________

Skeletal systems can serve all of the following purposes except:

Figure 40-1 Use the figure to answer the corresponding question(s). -Refer to Figure 40-1.Which of the following structures contributes to regulation of body temperature?

Which of the following statements about keratin is false?

A skeletal system would include all of the following except:

Sketch and label a cross-section through human skin.Identify two differences that would occur if the skin were exposed to UV radiation.

During contraction of your arm muscle:

A sprinter would have a high proportion of __________, and a marathon runner would have a high proportion of __________.

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

A sprinter would have a high proportion of , and a marathon runner would have a high proportion of .