Question 1

The cortical reaction is triggered by ____.

Accepted Answer

A)  the acrosomal reaction 
B)  sperm entering the nucleus 
C)  a depolarization event 
D)  Ca+2ions 
A)  the acrosomal reaction 
B)  sperm entering the nucleus 
C)  a depolarization event 
D)  Ca+2ions

Question 2

The mitochondria present in the sperm provide ____.

Accepted Answer

A)  energy for the movement of the flagellum 
B)  energy for the acrosome to penetrate the egg 
C)  energy for the maturation of the sperm 
D)  nutrients for the sperm 
E)  nutrients for the developing embryo 
A)  energy for the movement of the flagellum 
B)  energy for the acrosome to penetrate the egg 
C)  energy for the maturation of the sperm 
D)  nutrients for the sperm 
E)  nutrients for the developing embryo

Question 3

The presence of ____ in urine indicates a pregnancy.

Accepted Answer

A)  estrogen 
B)  progesterone 
C)  human chorionic gonadotropin 
D)  FSH 
E)  LH 
A)  estrogen 
B)  progesterone 
C)  human chorionic gonadotropin 
D)  FSH 
E)  LH

Question 4

The acrosomal reaction is the ____.

Accepted Answer

A)  activation of a sperm cell through attachment of an acrosome 
B)  release of digestive enzymes from the acrosome after the initial attachment of a sperm to an egg 
C)  fusion of sperm and egg nuclei using enzymes from the acrosome 
D)  use of enzymes from the acrosome to block the attachment of other sperm cells to the egg 
E)  initial binding of the sperm to the zona pellucida 
A)  activation of a sperm cell through attachment of an acrosome 
B)  release of digestive enzymes from the acrosome after the initial attachment of a sperm to an egg 
C)  fusion of sperm and egg nuclei using enzymes from the acrosome 
D)  use of enzymes from the acrosome to block the attachment of other sperm cells to the egg 
E)  initial binding of the sperm to the zona pellucida

Question 5

A human egg can only be fertilized in the ____.

Accepted Answer

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

Question 6

Sperm are produced in the ____.

Accepted Answer

A)  epididymis 
B)  seminiferous tubules 
C)  penis 
D)  prostate gland 
E)  vas deferens 
A)  epididymis 
B)  seminiferous tubules 
C)  penis 
D)  prostate gland 
E)  vas deferens

Question 7

The mammalian acrosome contains enzymes that ____.

Accepted Answer

A)  digest the zona pellucida 
B)  digest the endometrium 
C)  stimulate ovulation 
D)  stimulate sperm motility 
E)  inhibit premature ejaculation 
A)  digest the zona pellucida 
B)  digest the endometrium 
C)  stimulate ovulation 
D)  stimulate sperm motility 
E)  inhibit premature ejaculation

Question 8

The ovarian cycle produces a(n) ____.

Accepted Answer

A)  mature egg 
B)  parthenogenic egg 
C)  embryo 
D)  endometrium 
E)  mature somatic cell 
A)  mature egg 
B)  parthenogenic egg 
C)  embryo 
D)  endometrium 
E)  mature somatic cell

Question 9

Tubal ligation causes sterility because ____.

Accepted Answer

A)  eggs are no longer produced 
B)  the endometrium is unable to form 
C)  sperm is unable to enter the female reproductive tract 
D)  sex hormones are no longer produced by the ovaries 
E)  eggs are unable to travel through the oviducts to the uterus 
A)  eggs are no longer produced 
B)  the endometrium is unable to form 
C)  sperm is unable to enter the female reproductive tract 
D)  sex hormones are no longer produced by the ovaries 
E)  eggs are unable to travel through the oviducts to the uterus

Question 10

The greater vestibular glands ____.

Accepted Answer

A)  secrete a mucus-rich fluid that lubricates the vulva 
B)  receive and transport newly ovulated eggs to the uterus 
C)  maintain the endometrium 
D)  assist in transporting eggs to the oviduct 
E)  produce and release female steroids, such as estrogen and estradiol 
A)  secrete a mucus-rich fluid that lubricates the vulva 
B)  receive and transport newly ovulated eggs to the uterus 
C)  maintain the endometrium 
D)  assist in transporting eggs to the oviduct 
E)  produce and release female steroids, such as estrogen and estradiol

Question 11

In humans, the gonads ____.

Accepted Answer

A)  produce gametes only 
B)  secrete hormones only 
C)  nourish the embryo only 
D)  produce gametes and secrete hormones only 
E)  produce gametes, secrete hormones, and nourish the embryo 
A)  produce gametes only 
B)  secrete hormones only 
C)  nourish the embryo only 
D)  produce gametes and secrete hormones only 
E)  produce gametes, secrete hormones, and nourish the embryo

Question 12

In females, meiosis II is completed ____.

Accepted Answer

A)  before birth 
B)  at the time of birth 
C)  when eggs are ovulated each month 
D)  at puberty 
E)  only if the egg is fertilized 
A)  before birth 
B)  at the time of birth 
C)  when eggs are ovulated each month 
D)  at puberty 
E)  only if the egg is fertilized

Question 13

How does the hypothalamus of the sexually mature human male regulate reproductive hormone levels?

Accepted Answer

A)  The hypothalamus continuously secretes large amounts of GnRH. 
B)  The hypothalamus responds to low levels of testosterone by synthesizing and releasing testosterone. 
C)  The hypothalamus secretes GnRH in brief pulses every two to three hours. 
D)  The hypothalamus secretes LH in response to high levels of testosterone. 
E)  The hypothalamus responds to low levels of GnRH by synthesizing and releasing testosterone. 
A)  The hypothalamus continuously secretes large amounts of GnRH. 
B)  The hypothalamus responds to low levels of testosterone by synthesizing and releasing testosterone. 
C)  The hypothalamus secretes GnRH in brief pulses every two to three hours. 
D)  The hypothalamus secretes LH in response to high levels of testosterone. 
E)  The hypothalamus responds to low levels of GnRH by synthesizing and releasing testosterone.

Question 14

The acrosome of a sperm cell contains ____.

Accepted Answer

A)  a haploid number of chromosomes 
B)  a diploid number of chromosomes 
C)  enzymes and other proteins 
D)  mitochondria 
E)  ATP 
A)  a haploid number of chromosomes 
B)  a diploid number of chromosomes 
C)  enzymes and other proteins 
D)  mitochondria 
E)  ATP

Question 15

In ____, the parent separates into two or more offspring of approximately the same size.

Accepted Answer

A)  fission 
B)  fertilization 
C)  fragmentation 
D)  budding 
E)  parthenogenesis 
A)  fission 
B)  fertilization 
C)  fragmentation 
D)  budding 
E)  parthenogenesis

Question 16

The type of contraception technique that can interfere with implantation of a fertilized egg is ____.

Accepted Answer

A)  tubal ligation 
B)  spermicidal jelly 
C)  birth control pills 
D)  an intrauterine device 
E)  a diaphragm 
A)  tubal ligation 
B)  spermicidal jelly 
C)  birth control pills 
D)  an intrauterine device 
E)  a diaphragm

Question 17

List some of the environmental factors that may be associated with male and female infertility.

Accepted Answer

Environmental factors, such as a person'

Question 18

The drug mifepristone (RU-486) is a contraceptive that ____.

Accepted Answer

A)  blocks passage of sperm through the male reproductive tract 
B)  blocks passage of sperm through the female reproductive tract 
C)  prevents ovulation 
D)  causes shedding of the endometrial lining and any implanted embryo 
E)  prevents implantation by blocking estrogen receptors in the uterus 
A)  blocks passage of sperm through the male reproductive tract 
B)  blocks passage of sperm through the female reproductive tract 
C)  prevents ovulation 
D)  causes shedding of the endometrial lining and any implanted embryo 
E)  prevents implantation by blocking estrogen receptors in the uterus

Question 19

In many mammalian species, including bats and most non-human primates, a bone in the penis, called the ____, helps to maintain it in an erect state.

Accepted Answer

A)  pendulum 
B)  baculum 
C)  colostrum 
D)  prepuce 
E)  marsupium 
A)  pendulum 
B)  baculum 
C)  colostrum 
D)  prepuce 
E)  marsupium

Question 20

What is a disadvantage of sexual reproduction?

Accepted Answer

A)  Sexual reproduction generates less genetic diversity than asexual reproduction. 
B)  Sexual reproduction decreases the chance that offspring may be able to live and reproduce in diverse environments. 
C)  Sexual reproduction decreases the chance that, in a changing environment, at least some offspring will grow and reproduce successfully. 
D)  Sexual reproduction produces fewer offspring per parent than asexual reproduction. 
E)  On average, sexual reproduction generates unequal numbers of males and females. 
A)  Sexual reproduction generates less genetic diversity than asexual reproduction. 
B)  Sexual reproduction decreases the chance that offspring may be able to live and reproduce in diverse environments. 
C)  Sexual reproduction decreases the chance that, in a changing environment, at least some offspring will grow and reproduce successfully. 
D)  Sexual reproduction produces fewer offspring per parent than asexual reproduction. 
E)  On average, sexual reproduction generates unequal numbers of males and females.

Exam 49: Animal Reproduction

The cortical reaction is triggered by ____.

The mitochondria present in the sperm provide ____.

The presence of ____ in urine indicates a pregnancy.

The acrosomal reaction is the ____.

A human egg can only be fertilized in the ____.

Sperm are produced in the ____.

The mammalian acrosome contains enzymes that ____.

The ovarian cycle produces a(n) ____.

Tubal ligation causes sterility because ____.

The greater vestibular glands ____.

In humans, the gonads ____.

In females, meiosis II is completed ____.

How does the hypothalamus of the sexually mature human male regulate reproductive hormone levels?

The acrosome of a sperm cell contains ____.

In ____, the parent separates into two or more offspring of approximately the same size.

The type of contraception technique that can interfere with implantation of a fertilized egg is ____.

List some of the environmental factors that may be associated with male and female infertility.

The drug mifepristone (RU-486) is a contraceptive that ____.

In many mammalian species, including bats and most non-human primates, a bone in the penis, called the ____, helps to maintain it in an erect state.

What is a disadvantage of sexual reproduction?

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Expression: From Dna to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technology: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Digestive Systems and Animal Nutrition

Regulating the Internal Environment: Osmoregulation, Excretion, and Thermoregulation

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

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