Question 1

Which hormone stimulates the release of thyroid hormone?&#10;A)GHRH&#10;B)GHIH&#10;C)thyroid stimulating hormone (TSH)&#10;D)thyrotropin- releasing hormone (TRH)

Accepted Answer

Thyroid Stimulating Hormone (TSH) directly stimulates the thyroid gland to release thyroid hormones.

Question 2

Hyperthyroidism is associated with .&#10;A)lethargy&#10;B)increased BMR (basal metabolic rate)&#10;C)weight gain&#10;D)feeling chilled

Accepted Answer

A

Question 3

Many factors modify metabolic rate. Which one increases metabolic activity?&#10;A)obesity&#10;B)aging&#10;C)hypothermia (lowered body temperature)&#10;D)increasing exercise

Accepted Answer

Increasing exercise raises the metabolic rate as the body requires more energy to support the physical activity, leading to an increase in metabolic processes to meet the energy demand.

Question 4

Increasing levels of thyroid hormone cause .&#10;A)inhibition of TRH and stimulation of TSH&#10;B)stimulation of TRH and TSH&#10;C)inhibition of TRH and TSH

Accepted Answer

Increasing levels of thyroid hormone lead to a negative feedback mechanism that inhibits the secretion of Thyrotropin-releasing hormone (TRH) from the hypothalamus and Thyroid-stimulating hormone (TSH) from the anterior pituitary gland, thus reducing further production of thyroid hormones.

Question 5

After your fish became comatose secondary to hyperinsulinism, you administered to restore normal function.&#10;A)epinephrine&#10;B)insulin&#10;C)glucose&#10;D)glucagon

Accepted Answer

Glucose is administered to counteract the effects of hyperinsulinism, which causes low blood sugar levels.

Question 6

Besides controlling metabolic rate, thyroid hormone has many functions. These include: .&#10;A)regulation of blood calcium, and release of calcium from bones&#10;B)stimulating production of sex cells (egg an sperm)and secondary sex characteristics&#10;C)enabling the body to resist both short- term and long- term stressors&#10;D)regulation of growth and development, and maturation of the nervous system

Accepted Answer

Thyroid hormone plays a crucial role in regulating growth and development, as well as in the maturation of the nervous system, by influencing the rate of metabolic processes in the body and facilitating the proper development of various organ systems.

Question 7

How is body weight correlated to thyroid levels?&#10;A)Increased thyroid hormone causes more food to be stored as fat, leading to weight gain.&#10;B)Increased thyroid hormone causes muscles to bulk up, thus increasing weight.&#10;C)Increased thyroid hormone causes the body to burn food at a faster rate, reducing the chance that calories from food will be stored as fat and lead to weight gain.&#10;D)Increased thyroid hormone causes a decrease in BMR, leading to weight gain.

Accepted Answer

Increased thyroid hormone levels lead to an increase in the body's metabolic rate, which means the body burns calories at a faster rate. This can reduce the likelihood of excess calories being stored as fat, potentially preventing weight gain.

Question 8

Which reason best explains why hyperinsulinism in the fish causes it to become comatose?&#10;A)Low blood glucose levels shut down the liver.&#10;B)Low blood glucose levels deprive the brain of fuel.&#10;C)High blood glucose levels damage the kidneys.&#10;D)High blood glucose levels make the brain shut down.

Accepted Answer

Low blood glucose levels deprive the brain of fuel, leading to a lack of energy for brain function and potentially causing coma. Hyperinsulinism can cause hypoglycemia, which in turn can lead to insufficient glucose for the brain's energy needs.

Question 9

Metabolism refers to _ .&#10;A)all the chemical reactions necessary to maintain life.&#10;B)all the anabolic processes in the body&#10;C)all the catabolic processes in the body

Accepted Answer

Metabolism refers to all the chemical reactions necessary to maintain life, which includes both anabolic and catabolic processes.

Question 10

A patient suffering from hypothyroidism has developed a goiter. This occurred because _ .&#10;A)low levels of thyroid hormone removed inhibition from the anterior pituitary and hypothalamus, more TSH was produced and it stimulated the thyroid gland to increase in size.&#10;B)the mental sluggishness associated with hypothyroidism stimulates the thyroid gland to increase in size.&#10;C)low levels of thyroid hormone stimulate the thyroid gland to increase in size.&#10;D)the low activity level associated with hypothyroidism stimulates the thyroid land to increase in size.

Accepted Answer

Low levels of thyroid hormone in hypothyroidism lead to reduced inhibition of the hypothalamus and anterior pituitary, resulting in increased production of Thyroid Stimulating Hormone (TSH), which stimulates the thyroid gland to grow, potentially causing a goiter.

Question 11

Which of the gonadotropins injected into the frog actually caused ovulation?&#10;A)LH&#10;B)ACTH&#10;C)TSH&#10;D)FSH

Accepted Answer

The answer of Which of the gonadotropins injected into the...

Question 12

Which hormone is the single most important one that influences metabolism?&#10;A)thyroid hormone (T3 and T4)&#10;B)thyroid stimulating hormone (TSH)&#10;C)thyrotropin- releasing hormone (TRH)

Accepted Answer

The answer of Which hormone is the single most important...

Question 13

Where is thyroid releasing hormone (TRH)produced?&#10;A)thyroid gland&#10;B)anterior pituitary&#10;C)hypothalamus&#10;D)posterior pituitary

Accepted Answer

The answer of Where is thyroid releasing hormone (TRH)produced?&#10;A)thyroid gland&#10;B)anterior...

Question 14

We can stimulate amphibians to ovulate by injecting .&#10;A)growth hormone&#10;B)estrogen and progesterone&#10;C)thyroid hormone&#10;D)gonadotropins

Accepted Answer

The answer of We can stimulate amphibians to ovulate by...

Deck 28: Endocrine Wet Labs and Human Metabolism