Question 1

Labor is regulated by

Accepted Answer

A)  negative feedback control.
B)  positive feedback control.
C)  prolactin.
D)  estrogen.E) C) and D)
F) A) and B)

Question 2

Jeremy cannot ejaculate because of an injury he sustained in a car accident.An assisted reproductive technology that might help him to become a biological father is

Accepted Answer

A)  intrauterine insemination using donor sperm.
B)  gamete interfallopian transfer.
C)  intracytoplasmic sperm injection using his sperm into his partner's secondary oocyte.
D)  a surrogate mother.E) A) and C)
F) A) and D)

Question 3

Factors that can cause congenital malformations by affecting an embryo during its periods of rapid growth and development are called teratogens.

Accepted Answer

A) True 
 B)False

Question 4

Teratogens are substances that

Accepted Answer

A)  stimulate embryonic growth.
B)  cause congenital malformations.
C)  protect against infections.
D)  cause genetic disease.E) B) and D)
F) All of the above

Question 5

Changes that occur as death approaches include

Accepted Answer

A)  limbs become cool and numb.
B)  accumulation of secretions in the respiratory tract.
C)  blood pressure falls.
D)  all of the above.E) A) and B)
F) None of the above

Question 6

The nuclei from the approaching sperm and egg are called

Accepted Answer

A)  prenuceli
B)  mononuclei
C)  pronuclei
D)  gametocytes.E) All of the above
F) C) and D)

Question 7

An enzyme that sperm secretes that is important for egg penetration is

Accepted Answer

A)  hyaluronidase
B)  collagenase
C)  peptidase
D)  acetylcholinesteraseE) A) and D)
F) A) and B)

Question 8

Muscle contractions of the uterine walls and ________ in the semen aid sperm cell movement through the uterus and uterine tubes.

Accepted Answer

A)  estrogen
B)  progestins
C)  prostaglandins
D)  epinephrineE) A) and C)
F) B) and C)

Question 9

Monica takes the drug Accutane throughout her pregnancy,and her child has birth defects,due to the exposure.Accutane is a(n)

Accepted Answer

A)  estrogen.
B)  mutagen.
C)  teratogen.
D)  carcinogen.E) C) and D)
F) None of the above

Question 10

The hormone measured in a pregnancy test is

Accepted Answer

A)  estrogen.
B)  progesterone.
C)  hCG.
D)  ADH.E) None of the above
F) A) and C)

Question 11

Aging related changes include shrinking of the prostate in men and enlargement of the breasts in women.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following layers is considered loosely organized connective tissue?

Accepted Answer

A)  Mesoderm
B)  Endoderm
C)  Ectoderm
D)  EpidermisE) All of the above
F) None of the above

Question 13

The placenta allows

Accepted Answer

A)  oxygen and nutrients to diffuse from maternal blood to the embryo.
B)  carbon dioxide and other wastes to diffuse from the maternal blood to the embryonic blood.
C)  maternal blood to mix with fetal blood.
D)  the fetus to enlarge without rupturing the mother's abdomen.E) A) and D)
F) C) and D)

Question 14

The adolescent period begins at the end of the first year and completes at puberty.

Accepted Answer

A) True 
 B)False

Question 15

Proteolytic enzymes from the trophoblast aid implantation of an embryo.

Accepted Answer

A) True 
 B)False

Question 16

In the day or two before milk secretion begins,the breasts secrete ________.

Accepted Answer

The answer of In the day or two before milk...

Question 17

After birth,the ductus arteriosus constricts and becomes the ligamentum arteriosum.

Accepted Answer

A) True 
 B)False

Question 18

The major body parts derived from mesoderm are the

Accepted Answer

A)  nervous system and sense organs.
B)  muscle tissue,bone tissue,and bone marrow.
C)  epidermis,hair,nails,and glands of skin.
D)  respiratory tract,urinary bladder,and urethra.E) B) and D)
F) A) and D)

Question 19

Single genes that are important in determining how long a person lives affect

Accepted Answer

A)  glucose and lipid metabolism.
B)  cell cycle control.
C)  immune system functioning and response to stress.
D)  all of the above.E) A) and B)
F) B) and D)

Question 20

Compared to adult hemoglobin,fetal hemoglobin

Accepted Answer

A)  binds iron more strongly.
B)  has more hemoglobin subunits.
C)  binds oxygen more readily.
D)  has more heme units.E) None of the above
F) B) and C)

Exam 23: Pregnancy, Growth, and Development

Compared to adult hemoglobin,fetal hemoglobin

Correct AnswerverifiedShow Answer

After birth,the ductus arteriosus constricts and becomes the ligamentum arteriosum.

Correct AnswerverifiedShow Answer

Single genes that are important in determining how long a person lives affect

Correct AnswerverifiedShow Answer

Proteolytic enzymes from the trophoblast aid implantation of an embryo.

Correct AnswerverifiedShow Answer

The placenta allows

Correct AnswerverifiedShow Answer

Aging related changes include shrinking of the prostate in men and enlargement of the breasts in women.

Correct AnswerverifiedShow Answer

Labor is regulated by

Correct AnswerverifiedShow Answer

Jeremy cannot ejaculate because of an injury he sustained in a car accident.An assisted reproductive technology that might help him to become a biological father is

Correct AnswerverifiedShow Answer

In the day or two before milk secretion begins,the breasts secrete ________.

Correct AnswerverifiedShow Answer

The hormone measured in a pregnancy test is

Correct AnswerverifiedShow Answer

Muscle contractions of the uterine walls and ________ in the semen aid sperm cell movement through the uterus and uterine tubes.

Correct AnswerverifiedShow Answer

The nuclei from the approaching sperm and egg are called

Correct AnswerverifiedShow Answer

The major body parts derived from mesoderm are the

Correct AnswerverifiedShow Answer

Monica takes the drug Accutane throughout her pregnancy,and her child has birth defects,due to the exposure.Accutane is a(n)

Correct AnswerverifiedShow Answer

Changes that occur as death approaches include

Correct AnswerverifiedShow Answer

The adolescent period begins at the end of the first year and completes at puberty.

Correct AnswerverifiedShow Answer

An enzyme that sperm secretes that is important for egg penetration is

Correct AnswerverifiedShow Answer

Which of the following layers is considered loosely organized connective tissue?

Correct AnswerverifiedShow Answer

Factors that can cause congenital malformations by affecting an embryo during its periods of rapid growth and development are called teratogens.

Correct AnswerverifiedShow Answer

Teratogens are substances that

Correct AnswerverifiedShow Answer

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