Question 1

Typically, one one sperm fertilizes the oocyte because

Accepted Answer

A)  an acid solution is released that kills all other sperm. 
B)  special organelles within the oocyte eject more than one sperm. 
C)  changes occur to the protein coat that prevent further penetration. 
D)  follicle cellular space is only wide enough for one sperm. 
E)  usually only one sperm arrives at the oocyte. 
A)  an acid solution is released that kills all other sperm. 
B)  special organelles within the oocyte eject more than one sperm. 
C)  changes occur to the protein coat that prevent further penetration. 
D)  follicle cellular space is only wide enough for one sperm. 
E)  usually only one sperm arrives at the oocyte.

Question 2

In the human male, sperm are produced in the

Accepted Answer

A)  bulbourethral glands. 
B)  prostate. 
C)  seminiferous tubules. 
D)  vas deferens. 
E)  epididymis. 
A)  bulbourethral glands. 
B)  prostate. 
C)  seminiferous tubules. 
D)  vas deferens. 
E)  epididymis.

Question 3

Sperm use ____ for their energy source.

Accepted Answer

A)  fructose 
B)  glucose 
C)  ions 
D)  semen 
E)  prostate gland secretions 
A)  fructose 
B)  glucose 
C)  ions 
D)  semen 
E)  prostate gland secretions

Question 4

What is the function of the prostate secretions?

Accepted Answer

A)  to maturate the sperm 
B)  to provide sperm with energy 
C)  to protect sperm from vaginal acidity 
D)  to stimulate the release of LH 
E)  more than one of these is the function of prostate secretions 
A)  to maturate the sperm 
B)  to provide sperm with energy 
C)  to protect sperm from vaginal acidity 
D)  to stimulate the release of LH 
E)  more than one of these is the function of prostate secretions

Question 5

In human prenatal development, cleavage occurs in the

Accepted Answer

A)  cervix. 
B)  upper part of the uterus. 
C)  vagina. 
D)  oviduct. 
E)  ovary. 
A)  cervix. 
B)  upper part of the uterus. 
C)  vagina. 
D)  oviduct. 
E)  ovary.

Question 6

Parthenogenesis refers to

Accepted Answer

A)  new genetically based traits that arise spontaneously. 
B)  traits that arise through epigenesis. 
C)  live birth by normally egg-laying species. 
D)  the formation of a new individual from an unfertilized egg. 
E)  the origin of a new individual from a male. 
A)  new genetically based traits that arise spontaneously. 
B)  traits that arise through epigenesis. 
C)  live birth by normally egg-laying species. 
D)  the formation of a new individual from an unfertilized egg. 
E)  the origin of a new individual from a male.

Question 7

During a human pregnancy, implantation occurs at which stage?

Accepted Answer

A)  zygote 
B)  early cleavage 
C)  blastocyst 
D)  gastrula 
E)  embryo 
A)  zygote 
B)  early cleavage 
C)  blastocyst 
D)  gastrula 
E)  embryo

Question 8

To which of the following do the pharyngeal arches NOT contribute in a human embryo?

Accepted Answer

A)  pharynx 
B)  larynx 
C)  face 
D)  gills 
E)  pharygeal arches contribute to all of these structures in a human embryo 
A)  pharynx 
B)  larynx 
C)  face 
D)  gills 
E)  pharygeal arches contribute to all of these structures in a human embryo

Question 9

Which of the following cells are diploid?

Accepted Answer

A)  sperm 
B)  primary spermatocytes 
C)  secondary spermatocytes 
D)  male germ cells 
E)  both primary spermatocytes and male germ cells 
A)  sperm 
B)  primary spermatocytes 
C)  secondary spermatocytes 
D)  male germ cells 
E)  both primary spermatocytes and male germ cells

Question 10

After gastrulation the next event in human embryo formation is

Accepted Answer

A)  formation of the bones. 
B)  formation of the neural tube. 
C)  the heart begins to beat. 
D)  pharyngeal arches form. 
E)  apotosis between fingers and toes begins. 
A)  formation of the bones. 
B)  formation of the neural tube. 
C)  the heart begins to beat. 
D)  pharyngeal arches form. 
E)  apotosis between fingers and toes begins.

Question 11

Where in a sperm are mitochondria found?

Accepted Answer

A)  the head 
B)  the midpiece 
C)  the tail 
D)  both the tail and the midpiece 
E)  in all parts of the sperm 
A)  the head 
B)  the midpiece 
C)  the tail 
D)  both the tail and the midpiece 
E)  in all parts of the sperm

Question 12

Which two STDs commonly occur together?

Accepted Answer

A)  HPV infection and chlamydia 
B)  chlamydia and gonorrhea 
C)  gonorrhea and syphilis 
D)  trichomoniasis and genital herpes 
E)  trichomoniasis and syphilis 
A)  HPV infection and chlamydia 
B)  chlamydia and gonorrhea 
C)  gonorrhea and syphilis 
D)  trichomoniasis and genital herpes 
E)  trichomoniasis and syphilis

Question 13

Which of the following is NOT directly required for successful reproduction?

Accepted Answer

A)  ovary 
B)  oviduct 
C)  clitoris 
D)  vagina 
E)  uterus 
A)  ovary 
B)  oviduct 
C)  clitoris 
D)  vagina 
E)  uterus

Question 14

The germ layers are formed in which of the following stages?

Accepted Answer

A)  cleavage 
B)  meiosis 
C)  gastrulation 
D)  zygote formation 
E)  blastula formation 
A)  cleavage 
B)  meiosis 
C)  gastrulation 
D)  zygote formation 
E)  blastula formation

Question 15

Meiosis in female humans is completed

Accepted Answer

A)  before birth. 
B)  shortly after birth. 
C)  during the ovarian cycle. 
D)  at fertilization. 
E)  when a woman is fully mature. 
A)  before birth. 
B)  shortly after birth. 
C)  during the ovarian cycle. 
D)  at fertilization. 
E)  when a woman is fully mature.

Question 16

Which of the following is NOT true about the placenta?

Accepted Answer

A)  it begins forming in the third week 
B)  maternal blood mixes with fetal blood in the placenta 
C)  the placenta produces HCG 
D)  the placenta develops from the chorion 
E)  all of these are true about the placenta 
A)  it begins forming in the third week 
B)  maternal blood mixes with fetal blood in the placenta 
C)  the placenta produces HCG 
D)  the placenta develops from the chorion 
E)  all of these are true about the placenta

Question 17

Ovulation is triggered by

Accepted Answer

A)  high levels of LH. 
B)  low levels of LH. 
C)  low levels of estrogen. 
D)  high levels of estrogen. 
E)  high levels of progesterone. 
A)  high levels of LH. 
B)  low levels of LH. 
C)  low levels of estrogen. 
D)  high levels of estrogen. 
E)  high levels of progesterone.

Question 18

What is the function of a polar body?

Accepted Answer

A)  it directs sperm to the urethra 
B)  it provides nourishment to the developing oocyte 
C)  it serves as a nurse cell to spermatids 
D)  it may become a functional oocyte 
E)  it has no function 
A)  it directs sperm to the urethra 
B)  it provides nourishment to the developing oocyte 
C)  it serves as a nurse cell to spermatids 
D)  it may become a functional oocyte 
E)  it has no function

Question 19

How many children have been born worldwide from IVF?

Accepted Answer

A)  3 thousand 
B)  3 hundred thousand 
C)  3 million 
D)  30 million 
E)  300 million 
A)  3 thousand 
B)  3 hundred thousand 
C)  3 million 
D)  30 million 
E)  300 million

Question 20

What letter indicates the structure that acts as a pathway for the egg from the ovary to the uterus?

Accepted Answer

The answer of   What letter indicates the structure...

Exam 26: Reproduction and Development

Typically, one one sperm fertilizes the oocyte because

In the human male, sperm are produced in the

Sperm use ____ for their energy source.

What is the function of the prostate secretions?

In human prenatal development, cleavage occurs in the

Parthenogenesis refers to

During a human pregnancy, implantation occurs at which stage?

To which of the following do the pharyngeal arches NOT contribute in a human embryo?

Which of the following cells are diploid?

After gastrulation the next event in human embryo formation is

Where in a sperm are mitochondria found?

Which two STDs commonly occur together?

Which of the following is NOT directly required for successful reproduction?

The germ layers are formed in which of the following stages?

Meiosis in female humans is completed

Which of the following is NOT true about the placenta?

Ovulation is triggered by

What is the function of a polar body?

How many children have been born worldwide from IVF?

What letter indicates the structure that acts as a pathway for the egg from the ovary to the uterus?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Plant Form and Function

Plant Reproduction and Development

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