Question 1

When a motor neuron transmits a message, it releases the neurotransmitter serotonin.

Accepted Answer

A) True 
 B)False

Question 2

The components of the pectoral girdle are

Accepted Answer

A)  three fused hipbones. 
B)  the clavicles and the scapula. 
C)  the ribs and the clavicles. 
D)  the ribs and the sternum. 
E)  the ribs and the digits. 
A)  three fused hipbones. 
B)  the clavicles and the scapula. 
C)  the ribs and the clavicles. 
D)  the ribs and the sternum. 
E)  the ribs and the digits.

Question 3

Figure 40-2 ​
 
​
Contraction of the fibers labeled A in the accompanying figure results in

Accepted Answer

A)  elongation of the body. 
B)  elongation of the tentacles. 
C)  elongation of the gastrovascular cavity. 
D)  shortening of the body. 
E)  expansion of the pedal disk. 
A)  elongation of the body. 
B)  elongation of the tentacles. 
C)  elongation of the gastrovascular cavity. 
D)  shortening of the body. 
E)  expansion of the pedal disk.

Question 4

Endoskeletons are shed in the process of ecdysis.

Accepted Answer

A) True 
 B)False

Question 5

During the process of muscle contraction, Ca2+ binds tropomyosin.

Accepted Answer

A) True 
 B)False

Question 6

Large, multinucleate cells that break down bone are called

Accepted Answer

A)  osteoblasts. 
B)  chondrocytes. 
C)  osteocytes. 
D)  chondroblasts. 
E)  osteoclasts. 
A)  osteoblasts. 
B)  chondrocytes. 
C)  osteocytes. 
D)  chondroblasts. 
E)  osteoclasts.

Question 7

Match between columns
                        Premises: Repeating unit of muscle contraction

Accepted Answer

The Answer of Actin and Sarcomere and T tubule and is...

Question 8

How does smooth muscle differ from skeletal muscle?

Accepted Answer

A)  Smooth muscle attaches to bones via tendons. 
B)  Smooth muscle has a striated appearance. 
C)  Smooth muscle undergoes quick contractions. 
D)  Smooth muscles are connected via gap junctions. 
E)  Smooth muscle cross bridges form transiently. 
A)  Smooth muscle attaches to bones via tendons. 
B)  Smooth muscle has a striated appearance. 
C)  Smooth muscle undergoes quick contractions. 
D)  Smooth muscles are connected via gap junctions. 
E)  Smooth muscle cross bridges form transiently.

Question 9

The Z line consists of parts of actin filaments on two adjacent sarcomeres.

Accepted Answer

A) True 
 B)False

Question 10

Figure 40-1 ​
 
​
Refer to the accompanying figure. Which region of the skin insulates the body from outside temperature extremes?

Accepted Answer

A)  1 
B)  10 
C)  11 
D)  14 
E)  15 
A)  1 
B)  10 
C)  11 
D)  14 
E)  15

Question 11

Figure 40-4 Use the figure to answer the corresponding question(s). ​
 
​
Refer to the accompanying figure. In which part of the muscle fiber are calcium ions stored?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 12

Which of the following groups of vertebrae is located farthest from the head?

Accepted Answer

A)  Sacral 
B)  Thoracic 
C)  Cervical 
D)  Coccygeal 
E)  Cranial 
A)  Sacral 
B)  Thoracic 
C)  Cervical 
D)  Coccygeal 
E)  Cranial

Question 13

Figure 40-3 ​
 
​
Refer to the accompanying figure. In which portion of the bone is fat stored?

Accepted Answer

A)  B 
B)  C 
C)  J 
D)  H 
E)  I 
A)  B 
B)  C 
C)  J 
D)  H 
E)  I

Question 14

Explain why rigor mortis occurs following death.

Accepted Answer

Concepts to Consider: Lack of oxygen and

Question 15

Keratin is a mixture of fats and waxes that inhibits growth of harmful bacteria.

Accepted Answer

A) True 
 B)False

Question 16

Match between columns
                        Premises: Site where action potential spreads

Accepted Answer

The Answer of Sarcoplasmic reticulum and Troponin and T tubule is...

Question 17

People who undergo radiation therapy sometimes develop anemia resulting from a decreased production of red blood cells. This is because radiation affects

Accepted Answer

A)  spongy bone. 
B)  osteoblasts. 
C)  osteoclasts. 
D)  lacunae. 
E)  metaphysis. 
A)  spongy bone. 
B)  osteoblasts. 
C)  osteoclasts. 
D)  lacunae. 
E)  metaphysis.

Question 18

Adipose tissue is found in which layer of the skin?

Accepted Answer

A)  Epidermis 
B)  Dermis 
C)  Subcutaneous tissue 
D)  Stratum basale 
E)  Stratum corneum 
A)  Epidermis 
B)  Dermis 
C)  Subcutaneous tissue 
D)  Stratum basale 
E)  Stratum corneum

Question 19

The collagen fibers in bone are secreted by osteoblasts.

Accepted Answer

A) True 
 B)False

Question 20

When the ______ cannot absorb all the UV rays, the skin becomes ______.

Accepted Answer

A)  Melatonin; suntanned 
B)  melanin; suntanned 
C)  melanin; sunburned 
D)  melatonin; sunburned 
E)  melanin; cancerous 
A)  Melatonin; suntanned 
B)  melanin; suntanned 
C)  melanin; sunburned 
D)  melatonin; sunburned 
E)  melanin; cancerous

Exam 40: Protection, Support, and Movement

When a motor neuron transmits a message, it releases the neurotransmitter serotonin.

The components of the pectoral girdle are

Figure 40-2 ​ ​ Contraction of the fibers labeled A in the accompanying figure results in

Endoskeletons are shed in the process of ecdysis.

During the process of muscle contraction, Ca2+ binds tropomyosin.

Large, multinucleate cells that break down bone are called

How does smooth muscle differ from skeletal muscle?

The Z line consists of parts of actin filaments on two adjacent sarcomeres.

Figure 40-1 ​ ​ Refer to the accompanying figure. Which region of the skin insulates the body from outside temperature extremes?

Figure 40-4 Use the figure to answer the corresponding question(s). ​ ​ Refer to the accompanying figure. In which part of the muscle fiber are calcium ions stored?

Which of the following groups of vertebrae is located farthest from the head?

Figure 40-3 ​ ​ Refer to the accompanying figure. In which portion of the bone is fat stored?

Explain why rigor mortis occurs following death.

Keratin is a mixture of fats and waxes that inhibits growth of harmful bacteria.

People who undergo radiation therapy sometimes develop anemia resulting from a decreased production of red blood cells. This is because radiation affects

Adipose tissue is found in which layer of the skin?

The collagen fibers in bone are secreted by osteoblasts.

When the ______ cannot absorb all the UV rays, the skin becomes ______.

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

Figure 40-2 Contraction of the fibers labeled A in the accompanying figure results in

During the process of muscle contraction, Ca²⁺ binds tropomyosin.

Figure 40-1 Refer to the accompanying figure. Which region of the skin insulates the body from outside temperature extremes?

Figure 40-4 Use the figure to answer the corresponding question(s). Refer to the accompanying figure. In which part of the muscle fiber are calcium ions stored?

Figure 40-3 Refer to the accompanying figure. In which portion of the bone is fat stored?

When the cannot absorb all the UV rays, the skin becomes .