Question 1

Which hypothesis of aging involves mitochondria?

Accepted Answer

A)  gene damage by free radicals 
B)  whole-body process 
C)  extrinsic factors 
D)  damage accumulation 
E)  external factors 
A)  gene damage by free radicals 
B)  whole-body process 
C)  extrinsic factors 
D)  damage accumulation 
E)  external factors

Question 2

Does a woman ovulate during pregnancy? Why or why not?

Accepted Answer

A)  No, because she doesn't have any more follicles in the ovaries. 
B)  No, because negative feedback on the hypothalamus prevents new follicles from maturing. 
C)  No, because the developing embryo prevents any new blastulas from implanting. 
D)  Yes, because the uterine cycle continues to function. 
E)  Yes, because the ovarian cycle continues to function. 
A)  No, because she doesn't have any more follicles in the ovaries. 
B)  No, because negative feedback on the hypothalamus prevents new follicles from maturing. 
C)  No, because the developing embryo prevents any new blastulas from implanting. 
D)  Yes, because the uterine cycle continues to function. 
E)  Yes, because the ovarian cycle continues to function.

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

The number of neural cells in the cerebral cortex decreases during the aging process.

Accepted Answer

A) True 
 B)False

Question 6

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 7

Describe the steps of fertilizing an egg cell.

Accepted Answer

1. Sperm makes its way through the coron

Question 8

Which of the following is involved in the prevention of polyspermy?

Accepted Answer

A)  acrosome of the sperm 
B)  depolarization of the egg's plasma membrane 
C)  fusion of the sperm and egg nucleus 
D)  changes within the corona radiata 
E)  the number of chromosomes contained within the sperm 
A)  acrosome of the sperm 
B)  depolarization of the egg's plasma membrane 
C)  fusion of the sperm and egg nucleus 
D)  changes within the corona radiata 
E)  the number of chromosomes contained within the sperm

Question 9

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 10

Embryonic development begins with

Accepted Answer

A)  fertilization. 
B)  the first cell division. 
C)  the development of the blastocyst. 
D)  implantation. 
E)  gastrulation. 
A)  fertilization. 
B)  the first cell division. 
C)  the development of the blastocyst. 
D)  implantation. 
E)  gastrulation.

Question 11

Which of these is associated with pre-embryonic development?

Accepted Answer

A)  morula 
B)  embryonic disk 
C)  gastrulation 
D)  primary germ layers 
E)  formation of the umbilical cord 
A)  morula 
B)  embryonic disk 
C)  gastrulation 
D)  primary germ layers 
E)  formation of the umbilical cord

Question 12

The nervous system develops enough to permit reflex actions during which period of development?

Accepted Answer

A)  pre-embryonic 
B)  embryonic, weeks 6-8 
C)  fetal, months 3-4 
D)  embryonic, weeks 2-3 
E)  embryonic, weeks 4-5 
A)  pre-embryonic 
B)  embryonic, weeks 6-8 
C)  fetal, months 3-4 
D)  embryonic, weeks 2-3 
E)  embryonic, weeks 4-5

Question 13

Most birth defects are due to the inheritance of an abnormal number of chromosomes.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following would be considered a poor health practice for a woman planning to get pregnant or already pregnant?

Accepted Answer

A)  updating all vaccinations 
B)  treating all sexually transmitted diseases 
C)  obtaining more folic acid 
D)  eating enough to feed two people 
E)  moderate exercise 
A)  updating all vaccinations 
B)  treating all sexually transmitted diseases 
C)  obtaining more folic acid 
D)  eating enough to feed two people 
E)  moderate exercise

Question 15

An embryo at the 4-cell stage of development is almost twice the size of an embryo at the 2-cell stage of development.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is not derived from the endoderm?

Accepted Answer

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

Question 17

The nervous system is to the ectoderm as the skeleton is to the

Accepted Answer

A)  mesoderm. 
B)  endoderm. 
C)  chorion. 
D)  allantois. 
E)  blastula. 
A)  mesoderm. 
B)  endoderm. 
C)  chorion. 
D)  allantois. 
E)  blastula.

Question 18

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 19

The names of the extraembryonic membranes are derived from their function in animals that produce shelled eggs.

Accepted Answer

A) True 
 B)False

Question 20

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.

Exam 18: Development and Aging

Which hypothesis of aging involves mitochondria?

Does a woman ovulate during pregnancy? Why or why not?

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

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

The number of neural cells in the cerebral cortex decreases during the aging process.

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

Describe the steps of fertilizing an egg cell.

Which of the following is involved in the prevention of polyspermy?

Which of the following develops into the male genital ducts?

Embryonic development begins with

Which of these is associated with pre-embryonic development?

The nervous system develops enough to permit reflex actions during which period of development?

Most birth defects are due to the inheritance of an abnormal number of chromosomes.

Which of the following would be considered a poor health practice for a woman planning to get pregnant or already pregnant?

An embryo at the 4-cell stage of development is almost twice the size of an embryo at the 2-cell stage of development.

Which of the following is not derived from the endoderm?

The nervous system is to the ectoderm as the skeleton is to the

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

The names of the extraembryonic membranes are derived from their function in animals that produce shelled eggs.

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

Human Organization

Chemistery of Life

Cell Structure and Function

Torganization and Regulation of Body Systems

Cardiovascular System : Heart and Blood Vessels

Cardiovascular System : Blood

The Lumphatic and Immune Systems

Biology of Infectious Diseases

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocring System

Reproductive System

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

Dna Piology and Technology

Hummen Evolution

Ecology and the Nature of Ecosystems

Hummen Interactions With the Biosphere

Filters

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