Question 1

Which embryonic tissue is incorrectly associated with its derivative?

Accepted Answer

A)  skin from mesoderm 
B)  nervous system from ectoderm 
C)  liver from endoderm 
D)  circulatory system from mesoderm 
E)  respiratory tract from endoderm 
A)  skin from mesoderm 
B)  nervous system from ectoderm 
C)  liver from endoderm 
D)  circulatory system from mesoderm 
E)  respiratory tract from endoderm

Question 2

hCG stimulates which structure to secrete estrogen and progesterone?

Accepted Answer

A)  the zona pellucida 
B)  the corona radiata 
C)  the corpus luteum 
D)  the ovum 
E)  the placenta 
A)  the zona pellucida 
B)  the corona radiata 
C)  the corpus luteum 
D)  the ovum 
E)  the placenta

Question 3

The production of the shape and structure of each body region is

Accepted Answer

A)  organogenesis. 
B)  differentiation. 
C)  fertilization. 
D)  morphogenesis. 
E)  tissue specialization. 
A)  organogenesis. 
B)  differentiation. 
C)  fertilization. 
D)  morphogenesis. 
E)  tissue specialization.

Question 4

Aging may be attributed to

Accepted Answer

A)  genetics. 
B)  free radical damage. 
C)  a decline in DNA repair mechanisms. 
D)  changes in structural proteins. 
E)  all of these. 
A)  genetics. 
B)  free radical damage. 
C)  a decline in DNA repair mechanisms. 
D)  changes in structural proteins. 
E)  all of these.

Question 5

Which of the following is NOT one of the signs of aging in the skin?

Accepted Answer

A)  increased collagen 
B)  reduced fibroblasts 
C)  increase in sweat glands 
D)  less pigmentation in hair 
E)  increased fat deposits 
A)  increased collagen 
B)  reduced fibroblasts 
C)  increase in sweat glands 
D)  less pigmentation in hair 
E)  increased fat deposits

Question 6

In which stage of labor is the baby delivered?

Accepted Answer

A)  the first stage 
B)  the second stage 
C)  the third stage 
D)  in either the first or second stage 
E)  in either the second or third stage 
A)  the first stage 
B)  the second stage 
C)  the third stage 
D)  in either the first or second stage 
E)  in either the second or third stage

Question 7

The outermost membrane that forms the majority of the placenta is the

Accepted Answer

A)  amnion. 
B)  allantois. 
C)  chorion. 
D)  yolk sac. 
E)  umbilical cord. 
A)  amnion. 
B)  allantois. 
C)  chorion. 
D)  yolk sac. 
E)  umbilical cord.

Question 8

Which structure grows faster than any other as the embryo develops?

Accepted Answer

A)  the heart 
B)  the nervous system 
C)  the head 
D)  the digestive system 
E)  the urinary system 
A)  the heart 
B)  the nervous system 
C)  the head 
D)  the digestive system 
E)  the urinary system

Question 9

When only a small amount of ____ remain following several cell divisions, a cell stops dividing and dies.

Accepted Answer

A)  centromeres. 
B)  centrosomes. 
C)  acrosomes. 
D)  telomeres. 
E)  isomers. 
A)  centromeres. 
B)  centrosomes. 
C)  acrosomes. 
D)  telomeres. 
E)  isomers.

Question 10

The chorion develops from the

Accepted Answer

A)  trophoblast. 
B)  blastocyst. 
C)  blastomere. 
D)  gastrula. 
E)  morula. 
A)  trophoblast. 
B)  blastocyst. 
C)  blastomere. 
D)  gastrula. 
E)  morula.

Question 11

The brains of patients with Alzheimer's disease have a reduced level of

Accepted Answer

A)  serotonin. 
B)  dopamine. 
C)  acetylcholine. 
D)  aspartic acid. 
E)  GABA. 
A)  serotonin. 
B)  dopamine. 
C)  acetylcholine. 
D)  aspartic acid. 
E)  GABA.

Question 12

Which structure folds over to form the neural tube?

Accepted Answer

A)  the coelom 
B)  the primitive streak 
C)  the neural plate 
D)  pharyngeal arches 
E)  the notochord 
A)  the coelom 
B)  the primitive streak 
C)  the neural plate 
D)  pharyngeal arches 
E)  the notochord

Which embryonic tissue is incorrectly associated with its derivative?

hCG stimulates which structure to secrete estrogen and progesterone?

The production of the shape and structure of each body region is

Aging may be attributed to

Which of the following is NOT one of the signs of aging in the skin?

In which stage of labor is the baby delivered?

The outermost membrane that forms the majority of the placenta is the

Which structure grows faster than any other as the embryo develops?

When only a small amount of ____ remain following several cell divisions, a cell stops dividing and dies.

The chorion develops from the

The brains of patients with Alzheimer's disease have a reduced level of

Which structure folds over to form the neural tube?

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

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Exam 17: Development and Aging

Which embryonic tissue is incorrectly associated with its derivative?

hCG stimulates which structure to secrete estrogen and progesterone?

The production of the shape and structure of each body region is

Aging may be attributed to

Which of the following is NOT one of the signs of aging in the skin?

In which stage of labor is the baby delivered?

The outermost membrane that forms the majority of the placenta is the

Which structure grows faster than any other as the embryo develops?

When only a small amount of ____ remain following several cell divisions, a cell stops dividing and dies.

The chorion develops from the

The brains of patients with Alzheimer's disease have a reduced level of

Which structure folds over to form the neural tube?

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

Filters