Question 1

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 2

When does the mother first begin to feel the fetus move?

Accepted Answer

A)  1-2 months 
B)  3-4 months 
C)  5-7 months 
D)  7-9 months 
E)  weeks 1-4 
A)  1-2 months 
B)  3-4 months 
C)  5-7 months 
D)  7-9 months 
E)  weeks 1-4

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

Summarize the events that occur during each stage of birth.

Accepted Answer

Stage 1 is when the uterine contractions

Question 5

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.

Question 6

The yolk sac of the chick provides nutrients to the developing embryo. What structure serves the same role in humans?

Accepted Answer

A)  chorion 
B)  allantois 
C)  yolk sac 
D)  amnion 
E)  zona pellucida 
A)  chorion 
B)  allantois 
C)  yolk sac 
D)  amnion 
E)  zona pellucida

Question 7

Sheila is experiencing contractions every 15 to 20 minutes that last for 40 seconds or longer. Is she ready to give birth?

Accepted Answer

The answer of Sheila is experiencing contractions every 15 to...

Question 8

The embryonic disk becomes the inner cell mass after gastrulation.

Accepted Answer

A) True 
 B)False

Question 9

If a fetus contains an X and a Y chromosome but a defective SRY gene, they will develop

Accepted Answer

A)  into a female because testosterone is not present. 
B)  into a male because testosterone is not present. 
C)  into a female because testosterone is present. 
D)  into a male because testosterone is present. 
E)  into a hermaphrodite due to the presence of estrogen and testosterone. 
A)  into a female because testosterone is not present. 
B)  into a male because testosterone is not present. 
C)  into a female because testosterone is present. 
D)  into a male because testosterone is present. 
E)  into a hermaphrodite due to the presence of estrogen and testosterone.

Question 10

The first system in the body to become visibly differentiated during development is the

Accepted Answer

A)  digestive system. 
B)  cardiovascular system. 
C)  respiratory system. 
D)  nervous system. 
E)  reproductive system. 
A)  digestive system. 
B)  cardiovascular system. 
C)  respiratory system. 
D)  nervous system. 
E)  reproductive system.

Question 11

How do males and females differ as they age?

Accepted Answer

A)  Females undergo menopause but males do not undergo any changes in their reproductive hormone levels. 
B)  Males can continue to produce sperm until death but females do not continue to produce eggs. 
C)  Males develop urinary incontinence but females do not. 
D)  Males lose skeletal muscle mass but females tend to gain muscle mass. 
E)  Females dehydrate faster than males do. 
A)  Females undergo menopause but males do not undergo any changes in their reproductive hormone levels. 
B)  Males can continue to produce sperm until death but females do not continue to produce eggs. 
C)  Males develop urinary incontinence but females do not. 
D)  Males lose skeletal muscle mass but females tend to gain muscle mass. 
E)  Females dehydrate faster than males do.

Question 12

Estrogen is responsible for the onset and continuation of labor.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following defines "aging"?

Accepted Answer

A)  progressive changes from infancy until death 
B)  the loss of function of various body systems 
C)  the onset of sexual maturity 
D)  the development of disease or disability 
E)  the failure to thrive 
A)  progressive changes from infancy until death 
B)  the loss of function of various body systems 
C)  the onset of sexual maturity 
D)  the development of disease or disability 
E)  the failure to thrive

Question 14

The blood of the mother and the fetus mix in the placenta.

Accepted Answer

A) True 
 B)False

Question 15

Once the cortical granules release their enzymes, the corona radiata becomes the fertilization membrane.

Accepted Answer

A) True 
 B)False

Question 16

How are the pulmonary veins and the umbilical veins similar?

Accepted Answer

A)  They are both present in an adult human. 
B)  They both carry blood to the lungs. 
C)  They both connect to the superior vena cava. 
D)  They both carry oxygen-rich blood. 
E)  They both connect to the placenta. 
A)  They are both present in an adult human. 
B)  They both carry blood to the lungs. 
C)  They both connect to the superior vena cava. 
D)  They both carry oxygen-rich blood. 
E)  They both connect to the placenta.

Question 17

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)  Pregnancy 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)  Pregnancy creates a favorable concentration gradient between the fetal and maternal blood. 
E)  The bronchial tubes relax.

Question 18

Which part of the sperm contains the chromosomes?

Accepted Answer

A)  tail 
B)  middle piece 
C)  head 
D)  cell membrane 
E)  flagella 
A)  tail 
B)  middle piece 
C)  head 
D)  cell membrane 
E)  flagella

Question 19

Describe the steps in fertilization of an egg cell.

Accepted Answer

Answer : 1. Sperm makes its way through

Question 20

Where are the mitochondria located in the sperm?

Accepted Answer

A)  tail 
B)  middle piece 
C)  head 
D)  nucleus 
E)  cell membrane 
A)  tail 
B)  middle piece 
C)  head 
D)  nucleus 
E)  cell membrane

Exam 17: Human Development and Aging

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

When does the mother first begin to feel the fetus move?

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

Summarize the events that occur during each stage of birth.

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

The yolk sac of the chick provides nutrients to the developing embryo. What structure serves the same role in humans?

Sheila is experiencing contractions every 15 to 20 minutes that last for 40 seconds or longer. Is she ready to give birth?

The embryonic disk becomes the inner cell mass after gastrulation.

If a fetus contains an X and a Y chromosome but a defective SRY gene, they will develop

The first system in the body to become visibly differentiated during development is the

How do males and females differ as they age?

Estrogen is responsible for the onset and continuation of labor.

Which of the following defines "aging"?

The blood of the mother and the fetus mix in the placenta.

Once the cortical granules release their enzymes, the corona radiata becomes the fertilization membrane.

How are the pulmonary veins and the umbilical veins similar?

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

Which part of the sperm contains the chromosomes?

Describe the steps in fertilization of an egg cell.

Where are the mitochondria located in the sperm?

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

The Lymphatic and Immune Systems

Digestive System and Nutrition

Respiratory System

Urinary System

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 _____.