Question 1

The posterior pituitary

Accepted Answer

A) is the source of releasing hormones. 
B) produces four major tropic hormones. 
C) secretes oxytocin and the antidiuretic hormone vasopressin. 
D) produces growth hormone and prolactin. 
E) All of the choices are correct. 
A) is the source of releasing hormones. 
B) produces four major tropic hormones. 
C) secretes oxytocin and the antidiuretic hormone vasopressin. 
D) produces growth hormone and prolactin. 
E) All of the choices are correct.

Question 2

Hormone control is by

Accepted Answer

A) negative feedback systems similar to a house thermostat. 
B) positive feedback systems that require a shut-off mechanism. 
C) input from the nervous system. 
D) response to input of hormones and metabolites. 
E) All of the choices control hormone levels. 
A) negative feedback systems similar to a house thermostat. 
B) positive feedback systems that require a shut-off mechanism. 
C) input from the nervous system. 
D) response to input of hormones and metabolites. 
E) All of the choices control hormone levels.

Question 3

After birth,suckling by the baby induces the pituitary gland to release ____________,which stimulates the secretion of milk.or

Accepted Answer

The answer of After birth,suckling by the baby induces the...

Question 4

Tadpoles metamorphose into frogs because of

Accepted Answer

A) decreases in iodine leading to less thyroid hormone. 
B) decreases in juvenile hormone from the corpora alata. 
C) increases in epinephrine from the adrenals. 
D) activation of the thyroid gland and increases in growth hormone. 
E) sex hormones. 
A) decreases in iodine leading to less thyroid hormone. 
B) decreases in juvenile hormone from the corpora alata. 
C) increases in epinephrine from the adrenals. 
D) activation of the thyroid gland and increases in growth hormone. 
E) sex hormones.

Question 5

Early in the menstrual cycle of human females,the blood levels of ______ ______ hormone and luteinizing hormone begin to rise slowly,prompting the ovarian follicles to grow and release estrogen.

Accepted Answer

follicle s

Question 6

Most hormones travel by

Accepted Answer

A) intentionally seeking out the tissue they will affect. 
B) only traveling down the bloodstream in the direction of the target tissues. 
C) the lymphatic system. 
D) seeking the neurons that are going to the target tissue and using them as pathways. 
E) the bloodstream throughout the body,but only the target tissues will respond to their presence. 
A) intentionally seeking out the tissue they will affect. 
B) only traveling down the bloodstream in the direction of the target tissues. 
C) the lymphatic system. 
D) seeking the neurons that are going to the target tissue and using them as pathways. 
E) the bloodstream throughout the body,but only the target tissues will respond to their presence.

Question 7

Discuss hormonal control of diapause in insects.

Accepted Answer

Diapause in insects is a period of suspe

Question 8

The male sex hormone testosterone is produced by the ____________ cells of the testes.

Accepted Answer

The answer of The male sex hormone testosterone is produced...

Question 9

The actual affect of hormones on cellular functions is accomplished by

Accepted Answer

A) affecting enzyme activity. 
B) changing membrane permeability. 
C) regulating synthesis of cellular proteins. 
D) stimulating release of hormones from other glands. 
E) All of the choices are hormone actions. 
A) affecting enzyme activity. 
B) changing membrane permeability. 
C) regulating synthesis of cellular proteins. 
D) stimulating release of hormones from other glands. 
E) All of the choices are hormone actions.

Question 10

How does the pineal gland regulate sleep cycles and circadian rhythms?

Accepted Answer

The pineal gland, a small endocrine glan

Question 11

Peptide hormones and epinephrine

Accepted Answer

A) readily diffuse through the plasma membrane and the nuclear membrane. 
B) readily diffuse through the plasma membrane but not the nuclear membrane. 
C) are too large to pass across the plasma membrane. 
D) are steroid hormones. 
E) are second messengers. 
A) readily diffuse through the plasma membrane and the nuclear membrane. 
B) readily diffuse through the plasma membrane but not the nuclear membrane. 
C) are too large to pass across the plasma membrane. 
D) are steroid hormones. 
E) are second messengers.

Question 12

Why is it said that the brain neuropeptides blur the distinction between the endocrine and nervous systems?

Accepted Answer

Neuropeptides are small protein-like mol

Question 13

The molting hormone or ecdysone in insects

Accepted Answer

A) favors the development of adult structures. 
B) favors the development of larval structures. 
C) does not appear to act directly on the chromosomes. 
D) is not a steroid hormone. 
E) is toxic to humans. 
A) favors the development of adult structures. 
B) favors the development of larval structures. 
C) does not appear to act directly on the chromosomes. 
D) is not a steroid hormone. 
E) is toxic to humans.

Question 14

If you are interested in developing a "pesticide" hormone spray that will prevent insects from developing into adult pests,you would need to synthesize

Accepted Answer

A) a chemical that inhibits the corpora allata. 
B) the hormone created by the prothoracic gland. 
C) juvenile hormone. 
D) PTTH. 
E) ecdysone. 
A) a chemical that inhibits the corpora allata. 
B) the hormone created by the prothoracic gland. 
C) juvenile hormone. 
D) PTTH. 
E) ecdysone.

Question 15

Compare the functions of neurotransmitters with those of parahormones.

Accepted Answer

Neurotransmitters and parahormones both

Question 16

Outline the process of molting in an insect.Show how juvenile or adult features are reached strictly by the titer of specific hormones present.

Accepted Answer

Molting in insects is a process by which

Question 17

The preparation of the mammary glands for secretion of milk requires the action of

Accepted Answer

A) progesterone. 
B) prolactin. 
C) estrogen. 
D) human chorionic gonadotropin. 
A) progesterone. 
B) prolactin. 
C) estrogen. 
D) human chorionic gonadotropin.

Question 18

Steroid hormones diffuse directly into target cells where,after combining with nuclear receptors,they act on specific genes to cause an increase or decrease in _____________________ synthesis.

Accepted Answer

The answer of Steroid hormones diffuse directly into target cells...

Question 19

The pancreas produces two hormones that regulate sugar metabolism by antagonistic action:

Accepted Answer

A) Insulin and glucagon 
B) Insulin and diabetogenic hormone 
C) Estrogen and insulin 
D) Insulin and cortisone 
E) Epinephrine and norepinephrine 
A) Insulin and glucagon 
B) Insulin and diabetogenic hormone 
C) Estrogen and insulin 
D) Insulin and cortisone 
E) Epinephrine and norepinephrine

Question 20

The two hormones involved in insect metamorphosis are molting hormone and the __________ hormone.

Accepted Answer

The answer of The two hormones involved in insect metamorphosis...

Exam 34: Chemical Coordination: Endocrine System

The posterior pituitary

Hormone control is by

After birth,suckling by the baby induces the pituitary gland to release ____________,which stimulates the secretion of milk.or

Tadpoles metamorphose into frogs because of

Early in the menstrual cycle of human females,the blood levels of ______ ______ hormone and luteinizing hormone begin to rise slowly,prompting the ovarian follicles to grow and release estrogen.

Most hormones travel by

Discuss hormonal control of diapause in insects.

The male sex hormone testosterone is produced by the ____________ cells of the testes.

The actual affect of hormones on cellular functions is accomplished by

How does the pineal gland regulate sleep cycles and circadian rhythms?

Peptide hormones and epinephrine

Why is it said that the brain neuropeptides blur the distinction between the endocrine and nervous systems?

The molting hormone or ecdysone in insects

If you are interested in developing a "pesticide" hormone spray that will prevent insects from developing into adult pests,you would need to synthesize

Compare the functions of neurotransmitters with those of parahormones.

Outline the process of molting in an insect.Show how juvenile or adult features are reached strictly by the titer of specific hormones present.

The preparation of the mammary glands for secretion of milk requires the action of

Steroid hormones diffuse directly into target cells where,after combining with nuclear receptors,they act on specific genes to cause an increase or decrease in _____________________ synthesis.

The pancreas produces two hormones that regulate sugar metabolism by antagonistic action:

The two hormones involved in insect metamorphosis are molting hormone and the __________ hormone.

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectual Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Cnidarians and Ctenophores

Acoelomorpha, Platyzoa, and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Hexapods

Chaetognaths, echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, Protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Immunity

Animal Behavior

Animal Distribution

Animal Ecology

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Early in the menstrual cycle of human females,the blood levels of hormone and luteinizing hormone begin to rise slowly,prompting the ovarian follicles to grow and release estrogen.