Question 1

In bull elks, the mating season is triggered by the length of daylight which has a direct role on ____. ​

Accepted Answer

A) metabolism 
B) endocrine activity 
C) catabolism 
D) ecological events 
E) thermodynamics 
A) metabolism 
B) endocrine activity 
C) catabolism 
D) ecological events 
E) thermodynamics

Question 2

Fruit flies, mollusks, and humans all have insulin-like hormones and receptors , even though molecular studies suggest that their last common ancestor existed more than 800 million years ago.

Accepted Answer

A) True 
 B)False

Question 3

The parathyroid gland ____.

Accepted Answer

A) functions in regulation of sodium levels in the blood 
B) produces numerous hormones active in regulating downstream endocrine glands 
C) is the largest gland outside the hypothalamus 
D) produces only a single hormone, the thyroid regulating hormone 
E) produces only a single hormone, the parathyroid hormone 
A) functions in regulation of sodium levels in the blood 
B) produces numerous hormones active in regulating downstream endocrine glands 
C) is the largest gland outside the hypothalamus 
D) produces only a single hormone, the thyroid regulating hormone 
E) produces only a single hormone, the parathyroid hormone

Question 4

Target tissues often have receptors for multiple hormones. The response of the target tissue may depend on ____.

Accepted Answer

A) blood levels of and coordinated activities of several hormones secreted by different glands, only 
B) blood levels of the hormones that affect it only 
C) coordinated activities of several hormones secreted by different glands only 
D) the effects of other signaling molecules, such as prostaglandins only 
E) blood levels of, coordinated activities of several hormones secreted by different glands, and the effects of other signaling molecules, such as prostaglandins 
A) blood levels of and coordinated activities of several hormones secreted by different glands, only 
B) blood levels of the hormones that affect it only 
C) coordinated activities of several hormones secreted by different glands only 
D) the effects of other signaling molecules, such as prostaglandins only 
E) blood levels of, coordinated activities of several hormones secreted by different glands, and the effects of other signaling molecules, such as prostaglandins

Question 5

The synthesis and secretion of ____ is ultimately regulated by gonadotropin-releasing hormone from the ____. ​

Accepted Answer

A) estrogen; posterior pituitary 
B) estrogen; ovaries 
C) testosterone; hypothalamus 
D) testosterone; testes 
E) androgens; gonads 
A) estrogen; posterior pituitary 
B) estrogen; ovaries 
C) testosterone; hypothalamus 
D) testosterone; testes 
E) androgens; gonads

Question 6

While neural activity involves transmission of information through electrical events, endocrine activity involves ____. ​

Accepted Answer

A) transport of hormones to trigger slow, persistent responses 
B) transport of hormones to trigger fast, transient responses 
C) release of hormones from exocrine glands for transport outside the body 
D) changes in neural activity for transport of hormones to target tissues 
E) transmission of information through chemical reactions 
A) transport of hormones to trigger slow, persistent responses 
B) transport of hormones to trigger fast, transient responses 
C) release of hormones from exocrine glands for transport outside the body 
D) changes in neural activity for transport of hormones to target tissues 
E) transmission of information through chemical reactions

Question 7

Match between columns
                        Premises: primary calcium regulation

Accepted Answer

The Answer of  A and  H and  is...

Question 8

Melatonin levels in mammals are regulated by a(n)____. ​

Accepted Answer

A) inhibitory pathway 
B) stimulating pathway 
C) negative feedback loop 
D) positive feedback loop 
E) triggering signal 
A) inhibitory pathway 
B) stimulating pathway 
C) negative feedback loop 
D) positive feedback loop 
E) triggering signal

Question 9

Oxytocin is secreted by the posterior pituitary in females only .

Accepted Answer

A) True 
 B)False

Question 10

Hormone levels and action are determined by ____. ​

Accepted Answer

A) other hormones or releasing agents 
B) carbohydrate activity 
C) positive feedback systems 
D) prostaglandins 
E) touch receptors 
A) other hormones or releasing agents 
B) carbohydrate activity 
C) positive feedback systems 
D) prostaglandins 
E) touch receptors

Question 11

When rats are given high doses of anabolic-androgenic steroids (AAS), they experience ____. ​

Accepted Answer

A) decreased muscle mass and overall strength 
B) increased fertility 
C) increased aggression and anxiety 
D) increased gonadotropins and gonadal hormones 
E) decreased sex drive and energy levels 
A) decreased muscle mass and overall strength 
B) increased fertility 
C) increased aggression and anxiety 
D) increased gonadotropins and gonadal hormones 
E) decreased sex drive and energy levels

Question 12

If melanocyte-stimulating hormone were increased, you would expect ____. ​

Accepted Answer

A) changes in kidney function for retention of water 
B) increase in reproductive or estrus cycles 
C) decrease in heat loss from the body surface 
D) increase in pigmentation in the skin 
E) decrease in milk production in females 
A) changes in kidney function for retention of water 
B) increase in reproductive or estrus cycles 
C) decrease in heat loss from the body surface 
D) increase in pigmentation in the skin 
E) decrease in milk production in females

Question 13

Which hormone has a role in both feelings of well-being and in social stress responses in both sexes? ​

Accepted Answer

A) oxytocin 
B) endorphins 
C) insulin-like growth factors 
D) epinephrine 
E) norepinephrine 
A) oxytocin 
B) endorphins 
C) insulin-like growth factors 
D) epinephrine 
E) norepinephrine

Question 14

Match between columns
                        Premises: hormones from this gland play an important role in metamorphosis in amphibians

Accepted Answer

The Answer of  F and  D and  is...

Question 15

Target cells for steroid hormones and thyroid hormones do not have membrane receptors for these hormones because they ____. ​

Accepted Answer

A) stimulate the cell by changes in electrical activity 
B) are hydrophobic 
C) enter the cell by ion channels 
D) are small enough to diffuse directly into the cell 
E) dissolve readily in the extracellular fluid (ECF) 
A) stimulate the cell by changes in electrical activity 
B) are hydrophobic 
C) enter the cell by ion channels 
D) are small enough to diffuse directly into the cell 
E) dissolve readily in the extracellular fluid (ECF)

Question 16

Cyclic AMP activity is associated with hydrophobic hormones.

Accepted Answer

A) True 
 B)False

Question 17

Figure 42.2
Answer the question using the accompanying figure. This figure illustrates ____ signaling.

Accepted Answer

A) classical endocrine 
B) exocrine 
C) autocrine 
D) Paracrine 
E) neuroendocrine 
A) classical endocrine 
B) exocrine 
C) autocrine 
D) Paracrine 
E) neuroendocrine

Question 18

Describe amplification of hormone action.

Accepted Answer

Small quantities of hormones can typical

Question 19

Answer the question using the accompanying figure. Many ____ act via the signaling fashion illustrated by this figure. ​

Accepted Answer

A) neurohormones 
B) digestive hormones 
C) stress hormones 
D) blood sugar regulatorsc 
E) growth factors 
A) neurohormones 
B) digestive hormones 
C) stress hormones 
D) blood sugar regulatorsc 
E) growth factors

Question 20

In insects, the level of ____ controls the formation of a pupa. ​

Accepted Answer

A) molt-inhibiting hormone 
B) juvenile hormone 
C) prothoracicotropic hormone 
D) ecdysone 
E) insulin-like hormone 
A) molt-inhibiting hormone 
B) juvenile hormone 
C) prothoracicotropic hormone 
D) ecdysone 
E) insulin-like hormone

Exam 42: The Endocrine System

In bull elks, the mating season is triggered by the length of daylight which has a direct role on ____. ​

Fruit flies, mollusks, and humans all have insulin-like hormones and receptors , even though molecular studies suggest that their last common ancestor existed more than 800 million years ago.

The parathyroid gland ____.

Target tissues often have receptors for multiple hormones. The response of the target tissue may depend on ____.

The synthesis and secretion of ____ is ultimately regulated by gonadotropin-releasing hormone from the ____. ​

While neural activity involves transmission of information through electrical events, endocrine activity involves ____. ​

Melatonin levels in mammals are regulated by a(n)____. ​

Oxytocin is secreted by the posterior pituitary in females only .

Hormone levels and action are determined by ____. ​

When rats are given high doses of anabolic-androgenic steroids (AAS), they experience ____. ​

If melanocyte-stimulating hormone were increased, you would expect ____. ​

Which hormone has a role in both feelings of well-being and in social stress responses in both sexes? ​

Target cells for steroid hormones and thyroid hormones do not have membrane receptors for these hormones because they ____. ​

Cyclic AMP activity is associated with hydrophobic hormones.

Figure 42.2 Answer the question using the accompanying figure. This figure illustrates ____ signaling.

Describe amplification of hormone action.

Answer the question using the accompanying figure. Many ____ act via the signaling fashion illustrated by this figure. ​

In insects, the level of ____ controls the formation of a pupa. ​

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

From DNA to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technologies: 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

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Animal Nutrition

Regulating the Internal Environment

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

In bull elks, the mating season is triggered by the length of daylight which has a direct role on ____.

The synthesis and secretion of is ultimately regulated by gonadotropin-releasing hormone from the .

While neural activity involves transmission of information through electrical events, endocrine activity involves ____.

Melatonin levels in mammals are regulated by a(n)____.

Hormone levels and action are determined by ____.

When rats are given high doses of anabolic-androgenic steroids (AAS), they experience ____.

If melanocyte-stimulating hormone were increased, you would expect ____.

Which hormone has a role in both feelings of well-being and in social stress responses in both sexes?

Target cells for steroid hormones and thyroid hormones do not have membrane receptors for these hormones because they ____.

Answer the question using the accompanying figure. Many ____ act via the signaling fashion illustrated by this figure.

In insects, the level of ____ controls the formation of a pupa.