Question 1

Where are the mitochondria located in the sperm?

Accepted Answer

A)  tail 
B)  middle piece 
C)  head 
A)  tail 
B)  middle piece 
C)  head B

Question 2

Why would you predict that the blood carbon dioxide levels in a pregnant woman would fall?

Accepted Answer

A)  She has trouble breathing due to the expanding uterus. 
B)  The fetus is removing carbon dioxide from her blood. 
C)  The maternal oxygen levels are also falling. 
D)  This creates a favorable concentration gradient between the fetal and maternal blood. 
E)  The bronchial tubes relax. 
A)  She has trouble breathing due to the expanding uterus. 
B)  The fetus is removing carbon dioxide from her blood. 
C)  The maternal oxygen levels are also falling. 
D)  This creates a favorable concentration gradient between the fetal and maternal blood. 
E)  The bronchial tubes relax. D

Question 3

When cells begin to move in the embryo in relation to other cells,this is called

Accepted Answer

A)  cleavage. 
B)  growth. 
C)  morphogenesis. 
D)  differentiation. 
E)  fertilization. 
A)  cleavage. 
B)  growth. 
C)  morphogenesis. 
D)  differentiation. 
E)  fertilization. C

Question 4

When does the heart begin to develop?

Accepted Answer

A)  one week 
B)  three weeks 
C)  five weeks 
D)  seven weeks 
E)  nine weeks 
A)  one week 
B)  three weeks 
C)  five weeks 
D)  seven weeks 
E)  nine weeks

Question 5

Which of the following is not derived from the endoderm?

Accepted Answer

A)  epithelial lining of digestive tract 
B)  epithelial lining of respiratory tract 
C)  glands of the digestive tract 
D)  lining of the urinary bladder 
E)  urinary system 
A)  epithelial lining of digestive tract 
B)  epithelial lining of respiratory tract 
C)  glands of the digestive tract 
D)  lining of the urinary bladder 
E)  urinary system

Question 6

The _______ is the first embryonic membrane to appear,and it is the first site of ___________.

Accepted Answer

A)  amnion, umbilical cord formation 
B)  yolk sac, placenta development 
C)  chorion, neural system development 
D)  allantois, amniotic fluid formation 
E)  yolk sac, blood cell formation 
A)  amnion, umbilical cord formation 
B)  yolk sac, placenta development 
C)  chorion, neural system development 
D)  allantois, amniotic fluid formation 
E)  yolk sac, blood cell formation

Question 7

What is the leading cause of death today?

Accepted Answer

A)  cardiovascular disorders 
B)  stroke 
C)  accidents 
D)  suicide 
E)  cancer 
A)  cardiovascular disorders 
B)  stroke 
C)  accidents 
D)  suicide 
E)  cancer

Question 8

Which part of the sperm contains the chromosomes?

Accepted Answer

A)  tail 
B)  middle piece 
C)  head 
A)  tail 
B)  middle piece 
C)  head

Question 9

Few neural cells in the cerebral cortex are lost during the normal aging process.

Accepted Answer

A) True 
 B)False

Question 10

At what point during development does the embryo form three germ layers?

Accepted Answer

A)  when it begins cleavage 
B)  when the nervous system develops 
C)  when it forms the gastrula 
D)  when it forms the inner cell mass 
E)  when it becomes recognizable as human 
A)  when it begins cleavage 
B)  when the nervous system develops 
C)  when it forms the gastrula 
D)  when it forms the inner cell mass 
E)  when it becomes recognizable as human

Question 11

Which of the following problems is not associated with pregnancy?

Accepted Answer

A)  lordosis 
B)  lower back pain 
C)  gastrointestinal reflux 
D)  incontinence 
E)  impotence 
A)  lordosis 
B)  lower back pain 
C)  gastrointestinal reflux 
D)  incontinence 
E)  impotence

Question 12

If Dan lives longer than his father did because Dan takes better care of himself than his father did,this supports which theory of aging?

Accepted Answer

A)  genetic in origin 
B)  whole-body process 
C)  extrinsic factors 
A)  genetic in origin 
B)  whole-body process 
C)  extrinsic factors

Question 13

Which of the following is not involved in the increase in blood volume in a pregnant woman?

Accepted Answer

A)  progesterone 
B)  artery expansion 
C)  renin-angiotensin-aldosterone mechanism 
D)  an increase in blood oxygen levels 
E)  sodium and water retention 
A)  progesterone 
B)  artery expansion 
C)  renin-angiotensin-aldosterone mechanism 
D)  an increase in blood oxygen levels 
E)  sodium and water retention

Question 14

Menopause in women and andropause in men occur for very different reasons.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following skin changes is not associated with growing older?

Accepted Answer

A)  Pigmented blotches appear on the skin. 
B)  There is less adipose tissue in the subcutaneous layer. 
C)  The number of elastic fibers decreases. 
D)  There is an increase in the number of oil glands. 
E)  There are fewer sweat glands for sweating to occur. 
A)  Pigmented blotches appear on the skin. 
B)  There is less adipose tissue in the subcutaneous layer. 
C)  The number of elastic fibers decreases. 
D)  There is an increase in the number of oil glands. 
E)  There are fewer sweat glands for sweating to occur.

Question 16

Which of the following develops into the male genital ducts?

Accepted Answer

A)  epididymis 
B)  urogenital groove 
C)  cloaca 
D)  Mullerian ducts 
E)  Wolffian ducts 
A)  epididymis 
B)  urogenital groove 
C)  cloaca 
D)  Mullerian ducts 
E)  Wolffian ducts

Question 17

When the uterus begins to contract,it is almost time for the baby to be born.

Accepted Answer

A) True 
 B)False

Question 18

Development ceases at birth.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following does not occur prior to or during stage 1 of labor?

Accepted Answer

A)  bloody show 
B)  effacement 
C)  uterine contractions 
D)  breaking water 
E)  dislodging of the placenta 
A)  bloody show 
B)  effacement 
C)  uterine contractions 
D)  breaking water 
E)  dislodging of the placenta

Question 20

The white,greasy,cheeselike substance that covers the skin is called

Accepted Answer

A)  lanugo. 
B)  fontanels. 
C)  vernix caseosa. 
D)  foramen ovale. 
E)  ductus arteriosus. 
A)  lanugo. 
B)  fontanels. 
C)  vernix caseosa. 
D)  foramen ovale. 
E)  ductus arteriosus.

Exam 17: Development and Aging

Where are the mitochondria located in the sperm?

Why would you predict that the blood carbon dioxide levels in a pregnant woman would fall?

When cells begin to move in the embryo in relation to other cells,this is called

When does the heart begin to develop?

Which of the following is not derived from the endoderm?

The _______ is the first embryonic membrane to appear,and it is the first site of ___________.

What is the leading cause of death today?

Which part of the sperm contains the chromosomes?

Few neural cells in the cerebral cortex are lost during the normal aging process.

At what point during development does the embryo form three germ layers?

Which of the following problems is not associated with pregnancy?

If Dan lives longer than his father did because Dan takes better care of himself than his father did,this supports which theory of aging?

Which of the following is not involved in the increase in blood volume in a pregnant woman?

Menopause in women and andropause in men occur for very different reasons.

Which of the following skin changes is not associated with growing older?

Which of the following develops into the male genital ducts?

When the uterus begins to contract,it is almost time for the baby to be born.

Development ceases at birth.

Which of the following does not occur prior to or during stage 1 of labor?

The white,greasy,cheeselike substance that covers the skin is called

Exploring Life and Science

Chemistry of Life

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

Lymphatic System and Immunity

Digestive System and Nutrition

Respiratory System

Urinary System and Excretion

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

DNA Biology and Technology

Human Evolution

Global Ecology and Human Interferences

Human Population, planetary Resources, and Conservation

Infectious Diseases Supplement

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The _ is the first embryonic membrane to appear,and it is the first site of _____.