Question 1

Juvenile hormone can be used by humans as an effective control of insect populations because it causes

Accepted Answer

A)  juvenile insects to die. 
B)  the insects to fail to molt. 
C)  the insects to fail to develop into reproducing adults. 
D)  even tiny insects to pupate immediately. 
E)  insects to molt too quickly. 
A)  juvenile insects to die. 
B)  the insects to fail to molt. 
C)  the insects to fail to develop into reproducing adults. 
D)  even tiny insects to pupate immediately. 
E)  insects to molt too quickly. C

Question 2

The pituitary gland is made up of the anterior and posterior pituitary. What is the relationship between each of these parts and the hypothalamus?

Accepted Answer

The hormones secreted by the posterior pituitary gland are produced by neurons in the hypothalamus. The neurohormones move down neurons into the posterior pituitary gland, where they are stored and secreted. The anterior pituitary produces the hormones it secretes. However, hormones from the hypothalamus control the release of the anterior pituitary's hormones.

Question 3

Which of the following has both endocrine and exocrine functions?

Accepted Answer

A)  Pancreas 
B)  Heart 
C)  Testes 
D)  Adrenal glands 
E)  Pineal gland 
A)  Pancreas 
B)  Heart 
C)  Testes 
D)  Adrenal glands 
E)  Pineal gland A

Question 4

Hormones are secreted by

Accepted Answer

A)  endocrine glands, such as the thyroid gland. 
B)  individual cells, such as those lining portions of the digestive tract. 
C)  exocrine glands, such as the pancreas. 
D)  Both a and b 
E)  All of the above 
A)  endocrine glands, such as the thyroid gland. 
B)  individual cells, such as those lining portions of the digestive tract. 
C)  exocrine glands, such as the pancreas. 
D)  Both a and b 
E)  All of the above

Question 5

The paracrine hormone that mediates inflammation is _______.

Accepted Answer

The answer of The paracrine hormone that mediates inflammation is...

Question 6

Which of the following is not produced by the pancreas?

Accepted Answer

A)  Cortisol 
B)  Glucagon 
C)  Insulin 
D)  Somatostatin 
E)  Digestive enzymes 
A)  Cortisol 
B)  Glucagon 
C)  Insulin 
D)  Somatostatin 
E)  Digestive enzymes

Question 7

Hormonal and other systems in which production is shut off when the product becomes abundant are known as _______ feedback systems.

Accepted Answer

The answer of Hormonal and other systems in which production...

Question 8

In which of the following pairs is a pituitary hormone matched correctly with its target organ?

Accepted Answer

A)  Oxytocin - oviducts 
B)  Prolactin - kidney 
C)  Thyrotropin-releasing hormone - brain 
D)  Growth hormone - liver 
E)  Luteinizing hormone - thyroid 
A)  Oxytocin - oviducts 
B)  Prolactin - kidney 
C)  Thyrotropin-releasing hormone - brain 
D)  Growth hormone - liver 
E)  Luteinizing hormone - thyroid

Question 9

Juvenile hormone, which prevents maturation of insects into adult forms, is released by the _______ in Rhodnius.

Accepted Answer

A)  corpus callosum 
B)  hypothalamus 
C)  corpus allatum 
D)  wings 
E)  neck 
A)  corpus callosum 
B)  hypothalamus 
C)  corpus allatum 
D)  wings 
E)  neck

Question 10

The target tissues of hormones are those tissues that

Accepted Answer

A)  can be penetrated by the particular hormones. 
B)  have specific enzymes with which the hormones interact directly. 
C)  have high concentrations of the "second messenger." 
D)  have receptors for the particular hormones. 
E)  have the right genes for the hormones to express. 
A)  can be penetrated by the particular hormones. 
B)  have specific enzymes with which the hormones interact directly. 
C)  have high concentrations of the "second messenger." 
D)  have receptors for the particular hormones. 
E)  have the right genes for the hormones to express.

Question 11

In insects, juvenile hormone

Accepted Answer

A)  is produced by the corpora cardiaca. 
B)  is also known as brain hormone. 
C)  prevents maturation. 
D)  is produced in greatest concentration at the start of each instar stage. 
E)  All of the above 
A)  is produced by the corpora cardiaca. 
B)  is also known as brain hormone. 
C)  prevents maturation. 
D)  is produced in greatest concentration at the start of each instar stage. 
E)  All of the above

Question 12

Use the following to answer questions:
Match the hormonal function or action specified in each question that follows with the correct hormone from the list below. 
-Insufficient levels result in diabetes mellitus.

Accepted Answer

A)  Insulin 
B)  Glucagon 
C)  Epinephrine 
D)  Somatostatin 
E)   Cortisol 
A)  Insulin 
B)  Glucagon 
C)  Epinephrine 
D)  Somatostatin 
E)   Cortisol

Question 13

Rhodnius is an arthropod that can be decapitated and live for up to a year without its head. PTTH is a molting hormone that is stored in the head and released after a blood meal. Because of this you would expect that Rhodnius that are decapitated within a day of their last blood meal will

Accepted Answer

A)  molt immediately upon decapitation. 
B)  never molt. 
C)  molt more frequently than normal Rhodnius. 
D)  revert to juveniles. 
E)  None of the above 
A)  molt immediately upon decapitation. 
B)  never molt. 
C)  molt more frequently than normal Rhodnius. 
D)  revert to juveniles. 
E)  None of the above

Question 14

Which of the following statements about hormonal responses is false?

Accepted Answer

A)  A dose-response curve quantifies response to a hormone. 
B)  The half-life of epinephrine in the blood is a few minutes. 
C)  A radioimmunoassay is able to follow the interactions between a hormone and an antibody made to that hormone. 
D)  The technique for detecting and measuring infinitesimal quantities of hormone was developed by Rosalyn Yalow. 
E)  The half-life of a hormone in the blood is the length of time it takes for one-half of the hormone to be secreted. 
A)  A dose-response curve quantifies response to a hormone. 
B)  The half-life of epinephrine in the blood is a few minutes. 
C)  A radioimmunoassay is able to follow the interactions between a hormone and an antibody made to that hormone. 
D)  The technique for detecting and measuring infinitesimal quantities of hormone was developed by Rosalyn Yalow. 
E)  The half-life of a hormone in the blood is the length of time it takes for one-half of the hormone to be secreted.

Question 15

Construction of a busy housing development near a nesting colony of birds may lead to the birds experiencing continuous high concentrations of the hormones associated with stress. The phenomenon by which the number of stress hormone receptors decreases as a result of prolonged stress is called _______.

Accepted Answer

The answer of Construction of a busy housing development near...

Question 16

When a hormone's receptor is on the cell that secretes the hormone, the cell is said to have a(n) _______ function.

Accepted Answer

The answer of When a hormone's receptor is on the...

Question 17

Which of the following is the definition of "upregulation"?

Accepted Answer

A)  An increase in hormone receptors in response to low hormone levels 
B)  An increase in hormone receptors in response to high neurotransmitter levels 
C)  The increase in hormone levels produced by an increase in hormone receptors 
D)  The decrease in hormone levels produced by a decrease in hormone receptors 
E)  A change in hormone levels in response to a change in receptor levels 
A)  An increase in hormone receptors in response to low hormone levels 
B)  An increase in hormone receptors in response to high neurotransmitter levels 
C)  The increase in hormone levels produced by an increase in hormone receptors 
D)  The decrease in hormone levels produced by a decrease in hormone receptors 
E)  A change in hormone levels in response to a change in receptor levels

Question 18

A hormone found in Rhodnius and silkworms that is produced by the corpora allata and prevents metamorphosis into an adult is called _______.

Accepted Answer

The answer of A hormone found in Rhodnius and silkworms...

Question 19

The two hormones that control the transition of the moth from a juvenile to an adult are

Accepted Answer

A)  estrogen and testosterone. 
B)  juvenile hormone and testosterone. 
C)  testosterone and ecdysone. 
D)  ecdysone and estrogen. 
E)  juvenile hormone and ecdysone. 
A)  estrogen and testosterone. 
B)  juvenile hormone and testosterone. 
C)  testosterone and ecdysone. 
D)  ecdysone and estrogen. 
E)  juvenile hormone and ecdysone.

Question 20

A paracrine hormone

Accepted Answer

A)  circulates in the bloodstream and affects distant cells. 
B)  always acts on a wide variety of target tissues. 
C)  acts on nearby cells. 
D)  acts on neuronal cells only. 
E)  acts on glands only. 
A)  circulates in the bloodstream and affects distant cells. 
B)  always acts on a wide variety of target tissues. 
C)  acts on nearby cells. 
D)  acts on neuronal cells only. 
E)  acts on glands only.

Exam 41: Animal Hormones

Juvenile hormone can be used by humans as an effective control of insect populations because it causes

The pituitary gland is made up of the anterior and posterior pituitary. What is the relationship between each of these parts and the hypothalamus?

Which of the following has both endocrine and exocrine functions?

Hormones are secreted by

The paracrine hormone that mediates inflammation is _______.

Which of the following is not produced by the pancreas?

Hormonal and other systems in which production is shut off when the product becomes abundant are known as _______ feedback systems.

In which of the following pairs is a pituitary hormone matched correctly with its target organ?

Juvenile hormone, which prevents maturation of insects into adult forms, is released by the _______ in Rhodnius.

The target tissues of hormones are those tissues that

In insects, juvenile hormone

Use the following to answer questions: Match the hormonal function or action specified in each question that follows with the correct hormone from the list below. -Insufficient levels result in diabetes mellitus.

Rhodnius is an arthropod that can be decapitated and live for up to a year without its head. PTTH is a molting hormone that is stored in the head and released after a blood meal. Because of this you would expect that Rhodnius that are decapitated within a day of their last blood meal will

Which of the following statements about hormonal responses is false?

When a hormone's receptor is on the cell that secretes the hormone, the cell is said to have a(n) _______ function.

Which of the following is the definition of "upregulation"?

A hormone found in Rhodnius and silkworms that is produced by the corpora allata and prevents metamorphosis into an adult is called _______.

The two hormones that control the transition of the moth from a juvenile to an adult are

A paracrine hormone

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