BIOL 2252 Unit D2L Quizzes UPDATED ACTUAL Questions
and CORRECT Answers
The release of hormones by endocrine cells alters the Metabolic activities of many tissues and organs simultaneously
1. Very specific responses to environmental stimuli
2. Anatomical boundary between the nervous and
endocrine systems
3. Metabolic activities of many tissues and organs
simultaneously
4. Rate at which chemical neurotransmitters are released
What is the main difference between endocrine and Endocrine glands discharge their secretions directly into the bloodstream
exocrine glands?
1. Endocrine glands discharge their secretions directly
into the bloodstream
2. Endocrine glands discharge their secretions through
ducts
3. Exocrine glands are controlled primarily by nerves
4. Exocrine glands secrete hormones directly into the
bloodstream
Which of the following statements is true of amino acid- They require a receptor in the plasma membrane and employ intracellular second
based hormones? messengers
1. They cross the plasma membrane and alter the
expression of a gene
2. They require a receptor in the plasma membrane and
employ intracellular second messengers
3. They are synthesized from cholesterol and enter the
cell directly
4. They are lipid soluble so therefore cannot cross the
membrane and instead employ second messengers
Which one of these hormones is the only hormone that Testosterone
can act on receptors inside the target cell and directly
activate specific genes?
1. Calcitonin
2. Growth hormone
3. Testosterone
4. Thyroid stimulating hormone
In the second-messenger cascade mechanism of Binding to specific receptors and employing the services of G proteins and cAMP
hormone action, the hormone functions by
1. Entering the nucleus of a cell and initiating or altering
the expression of a gene
2. Synthesizing more than one hormone at a time
3. Binding to specific receptors and employing the
services of G proteins and cAMP
4. Increasing the basal metabolic rate in the target organ
, Hormones have the ability to bring about multiple During protein kinase activation, enzymes phosphorylate many other enzymes
responses in a cell because amplifying the message
1. During protein kinase activation, enzymes
phosphorylate many other enzymes amplifying the
message
2. The protein kinases are rapidly metabolized into
functional amino acids that amplify the message
3. The receptors bind to several hormones at the same
time therefore amplifying the response
4. There are thousands of receptors on the cell
membrane which amplifies the message
Which of the following situations could cause the release All of the above
of a hormone?
1. Decreasing glucose levels in the blood
2. Stimulation of the sympathetic nervous system
3. Secretion of a tropic hormone
4. Increasing levels of potassium in the blood
5. All of the above
The additive effects of growth hormone (GH) and Synergistic effect
glucocorticoids illustrate the ____ _.
1. Antagonistic effect
2. Synergistic effect
3. Permissive effect
4. Integrative effect
Why is the hypothalamus a major coordinating and It contains autonomic centers and acts as an endocrine organ.
control center?
1. It contains autonomic centers and acts as an endocrine
organ.
2. It initiates endocrine and neural reflexes.
3. It produces all hormones secreted by the pituitary
gland.
4. It stimulates appropriate responses by peripheral
target cells.
Hypothyroidism, myxedema, and goiter may result from Dietary iodide
an inadequate amount of __ _.
1. Magnesium and zinc
2. Salt in the diet
3. Dietary iodide
4. Sodium and calcium
and CORRECT Answers
The release of hormones by endocrine cells alters the Metabolic activities of many tissues and organs simultaneously
1. Very specific responses to environmental stimuli
2. Anatomical boundary between the nervous and
endocrine systems
3. Metabolic activities of many tissues and organs
simultaneously
4. Rate at which chemical neurotransmitters are released
What is the main difference between endocrine and Endocrine glands discharge their secretions directly into the bloodstream
exocrine glands?
1. Endocrine glands discharge their secretions directly
into the bloodstream
2. Endocrine glands discharge their secretions through
ducts
3. Exocrine glands are controlled primarily by nerves
4. Exocrine glands secrete hormones directly into the
bloodstream
Which of the following statements is true of amino acid- They require a receptor in the plasma membrane and employ intracellular second
based hormones? messengers
1. They cross the plasma membrane and alter the
expression of a gene
2. They require a receptor in the plasma membrane and
employ intracellular second messengers
3. They are synthesized from cholesterol and enter the
cell directly
4. They are lipid soluble so therefore cannot cross the
membrane and instead employ second messengers
Which one of these hormones is the only hormone that Testosterone
can act on receptors inside the target cell and directly
activate specific genes?
1. Calcitonin
2. Growth hormone
3. Testosterone
4. Thyroid stimulating hormone
In the second-messenger cascade mechanism of Binding to specific receptors and employing the services of G proteins and cAMP
hormone action, the hormone functions by
1. Entering the nucleus of a cell and initiating or altering
the expression of a gene
2. Synthesizing more than one hormone at a time
3. Binding to specific receptors and employing the
services of G proteins and cAMP
4. Increasing the basal metabolic rate in the target organ
, Hormones have the ability to bring about multiple During protein kinase activation, enzymes phosphorylate many other enzymes
responses in a cell because amplifying the message
1. During protein kinase activation, enzymes
phosphorylate many other enzymes amplifying the
message
2. The protein kinases are rapidly metabolized into
functional amino acids that amplify the message
3. The receptors bind to several hormones at the same
time therefore amplifying the response
4. There are thousands of receptors on the cell
membrane which amplifies the message
Which of the following situations could cause the release All of the above
of a hormone?
1. Decreasing glucose levels in the blood
2. Stimulation of the sympathetic nervous system
3. Secretion of a tropic hormone
4. Increasing levels of potassium in the blood
5. All of the above
The additive effects of growth hormone (GH) and Synergistic effect
glucocorticoids illustrate the ____ _.
1. Antagonistic effect
2. Synergistic effect
3. Permissive effect
4. Integrative effect
Why is the hypothalamus a major coordinating and It contains autonomic centers and acts as an endocrine organ.
control center?
1. It contains autonomic centers and acts as an endocrine
organ.
2. It initiates endocrine and neural reflexes.
3. It produces all hormones secreted by the pituitary
gland.
4. It stimulates appropriate responses by peripheral
target cells.
Hypothyroidism, myxedema, and goiter may result from Dietary iodide
an inadequate amount of __ _.
1. Magnesium and zinc
2. Salt in the diet
3. Dietary iodide
4. Sodium and calcium
