Question 1

A thin layer of the developing embryo that secretes the hormone that keeps the corpus luteum functioning is

Accepted Answer

A) cervix. 
B) endometrium. 
C) amnion. 
D) plasma membrane. 
E) chorion. 
A) cervix. 
B) endometrium. 
C) amnion. 
D) plasma membrane. 
E) chorion.

Question 2

This embryonic hormone maintains progesterone and estrogen secretion by the corpus luteum through the first trimester of pregnancy:

Accepted Answer

A) luteinizing hormone (LH) 
B) follicle-stimulating hormone (FSH) 
C) progesterone 
D) human chorionic gonadotropin (HCG) 
E) gonadotropin-releasing hormone (GnRH) 
A) luteinizing hormone (LH) 
B) follicle-stimulating hormone (FSH) 
C) progesterone 
D) human chorionic gonadotropin (HCG) 
E) gonadotropin-releasing hormone (GnRH)

Question 3

This hormone is secreted directly from a structure in the brain:

Accepted Answer

A) testosterone 
B) estradiol 
C) progesterone 
D) follicle stimulating hormone 
E) gonadotropin-releasing hormone 
A) testosterone 
B) estradiol 
C) progesterone 
D) follicle stimulating hormone 
E) gonadotropin-releasing hormone

Question 4

Menopause is caused by

Accepted Answer

A) reduced synthesis of ovarian steroids despite high levels of gonadotropin hormones. 
B) a decline in production of the gonadotropin hormones by the anterior pituitary gland. 
C) wearing away of the uterine endometrium. 
D) an increase in the blood supply to the ovaries. 
E) a halt in the synthesis of gonadotropin-releasing hormone by the brain. 
A) reduced synthesis of ovarian steroids despite high levels of gonadotropin hormones. 
B) a decline in production of the gonadotropin hormones by the anterior pituitary gland. 
C) wearing away of the uterine endometrium. 
D) an increase in the blood supply to the ovaries. 
E) a halt in the synthesis of gonadotropin-releasing hormone by the brain.

Question 5

A woman in the final week of pregnancy who is given an injection of oxytocin would likely

Accepted Answer

A) undergo the loss of oxytocin receptors from her uterine smooth muscle cells. 
B) stop secreting prostaglandins from the placenta. 
C) undergo vigorous contractions of her uterine muscles. 
D) increase the synthesis and secretion of progesterone. 
E)  be prevented from lactation. 
A) undergo the loss of oxytocin receptors from her uterine smooth muscle cells. 
B) stop secreting prostaglandins from the placenta. 
C) undergo vigorous contractions of her uterine muscles. 
D) increase the synthesis and secretion of progesterone. 
E)  be prevented from lactation.

Exam 46: Animal Reproduction

A thin layer of the developing embryo that secretes the hormone that keeps the corpus luteum functioning is

This embryonic hormone maintains progesterone and estrogen secretion by the corpus luteum through the first trimester of pregnancy:

This hormone is secreted directly from a structure in the brain:

Menopause is caused by

A woman in the final week of pregnancy who is given an injection of oxytocin would likely

Introduction: Themes in the Study of Life

The Chemical Context of Life

Water and the Fitness of the Environment

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

From Gene to Protein

Control of Gene Expression

Viruses

Biotechnology

Genomes and Their Evolution

Descent With Modification: a Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity Ii: the Evolution of Seed Plants

Fungi

An Introduction to Animal Diversity

Invertebrates

Vertebrates

Plant Structure, Growth, and Development

Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Development

Neurons, Synapses, and Signaling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behavior

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems

Conservation Biology and Restoration Ecology

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