Exampromax - Stuvia US 2025/2026
1
Teas 6 Endocrine System Questions and
Answers and Graded
What is the difference between steroids and non-steroids?
Correct Answer
Steroids are hormones that have a cholesterol backbone
and are "not soluble in water" due to their lipid structure,
they are transported through the blood attached to carrier
proteins, they penetrate the cell membrane and interact
with nuclear receptors that affect the DNA. Steroids bind to
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the receptors on the nucleus. (REQUIRE A CARRIER TO
Exampromax - Stuvia US
MOVE THROUGH THE BLOODSTREAM.)
Non-steroids are hormones that are primarily derived from
proteins and are "water soluble" due to their polar nature,
these hormones pass "freely" through the blood (DISSOLVE
EASILY IN WATER) ; they interact with receptors on the
cells' membrane and activate secondary messenger systems
that carry out their effects with the cell. Non-steroids can
not pass through the cells membrane.
When levels of T3 and T4 decrease below normal, the pituitary gland
produces TSH, stimulating the thyroid gland to produce more hormones
and raise the blood levels. Once the levels rise, the pituitary then decreases
TSH production.
Correct Answer
A negative feedback loop involving the pituitary gland and
the thyroid gland
, Exampromax - Stuvia US 2025/2026
2
What is the function of T3? (triiodothyronine)
Correct Answer
is several times more powerful than T4, which is largely a
pro- hormone. the most powerful thyroid hormone, and
affects almost every process in the body, including body
temperature, growth, and heart rate.
What is the function of T4? (thyroxine)
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Correct Answer
Exampromax - Stuvia US
A hormone (an iodine derivative of tyrosine), produced by
the thyroid gland, that regulates cell metabolism and
growth.
T4 (Thyroxine) is converted to T3 ( Triiodothyronine) by peripheral organs
___________________
Correct Answer
such as the liver, kidney, and spleen.
What does T3 and T4 do together?
Correct Answer
They regulate the body's temperature, metabolism, and
heart rate.
What endocrine organ produces T3 and T4?
, Exampromax - Stuvia US 2025/2026
3
Correct Answer
the thyroid
If your body releases too _________ much you will suffer a condition called
thyrotoxicosis.
Correct Answer
thyroxine
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Describe the thyroid
Exampromax - Stuvia US
Correct Answer
a small gland, butterfly-shaped, located in the front of the
neck. It is made up of two halves, called lobes, that lie
alongside the windpipe (trachea) and joined together by by
a narrow band of thyroid tissue ( the isthmus)
If unregulated, ___________ _____________ ______________can lead to
life-threatening conditions such as myxedema coma (dangerously low
thyroid hormones) and thyroid storm (excessive thyroid hormone
concentration).
Correct Answer
thyroid hormone imbalances
What is the function of the thyroid gland?
Correct Answer
, Exampromax - Stuvia US 2025/2026
4
its function is to take iodine found in food and convert it
into thyroxine (T4) and triiodothyronine (T3), their cells are
the only cells that absorb iodine. Thyroid cells combine
iodine and amino acid tyosine to make T3 and T4, then
release them into the bloodstream and then T3 and T4 are
transported throughout the body where they control
metabolism (conversion of oxygen and calories to energy)
Every cell in the body depends _______ ________for regulation of their
metabolism
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Correct Answer
Exampromax - Stuvia US
thyroid hormones
The thyroid is under the control of the _________ _____
Correct Answer
pituitary gland
Thyroid Stimulating Hormone (TSH)
Correct Answer
stimulates thyroid gland to produce hormones.
The ____________is the part of the brain that produces Thyroid Releasing
Hormone (TRH)
Correct Answer
hypothalamus
1
Teas 6 Endocrine System Questions and
Answers and Graded
What is the difference between steroids and non-steroids?
Correct Answer
Steroids are hormones that have a cholesterol backbone
and are "not soluble in water" due to their lipid structure,
they are transported through the blood attached to carrier
proteins, they penetrate the cell membrane and interact
with nuclear receptors that affect the DNA. Steroids bind to
© 2025 Assignment Expert
the receptors on the nucleus. (REQUIRE A CARRIER TO
Exampromax - Stuvia US
MOVE THROUGH THE BLOODSTREAM.)
Non-steroids are hormones that are primarily derived from
proteins and are "water soluble" due to their polar nature,
these hormones pass "freely" through the blood (DISSOLVE
EASILY IN WATER) ; they interact with receptors on the
cells' membrane and activate secondary messenger systems
that carry out their effects with the cell. Non-steroids can
not pass through the cells membrane.
When levels of T3 and T4 decrease below normal, the pituitary gland
produces TSH, stimulating the thyroid gland to produce more hormones
and raise the blood levels. Once the levels rise, the pituitary then decreases
TSH production.
Correct Answer
A negative feedback loop involving the pituitary gland and
the thyroid gland
, Exampromax - Stuvia US 2025/2026
2
What is the function of T3? (triiodothyronine)
Correct Answer
is several times more powerful than T4, which is largely a
pro- hormone. the most powerful thyroid hormone, and
affects almost every process in the body, including body
temperature, growth, and heart rate.
What is the function of T4? (thyroxine)
© 2025 Assignment Expert
Correct Answer
Exampromax - Stuvia US
A hormone (an iodine derivative of tyrosine), produced by
the thyroid gland, that regulates cell metabolism and
growth.
T4 (Thyroxine) is converted to T3 ( Triiodothyronine) by peripheral organs
___________________
Correct Answer
such as the liver, kidney, and spleen.
What does T3 and T4 do together?
Correct Answer
They regulate the body's temperature, metabolism, and
heart rate.
What endocrine organ produces T3 and T4?
, Exampromax - Stuvia US 2025/2026
3
Correct Answer
the thyroid
If your body releases too _________ much you will suffer a condition called
thyrotoxicosis.
Correct Answer
thyroxine
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Describe the thyroid
Exampromax - Stuvia US
Correct Answer
a small gland, butterfly-shaped, located in the front of the
neck. It is made up of two halves, called lobes, that lie
alongside the windpipe (trachea) and joined together by by
a narrow band of thyroid tissue ( the isthmus)
If unregulated, ___________ _____________ ______________can lead to
life-threatening conditions such as myxedema coma (dangerously low
thyroid hormones) and thyroid storm (excessive thyroid hormone
concentration).
Correct Answer
thyroid hormone imbalances
What is the function of the thyroid gland?
Correct Answer
, Exampromax - Stuvia US 2025/2026
4
its function is to take iodine found in food and convert it
into thyroxine (T4) and triiodothyronine (T3), their cells are
the only cells that absorb iodine. Thyroid cells combine
iodine and amino acid tyosine to make T3 and T4, then
release them into the bloodstream and then T3 and T4 are
transported throughout the body where they control
metabolism (conversion of oxygen and calories to energy)
Every cell in the body depends _______ ________for regulation of their
metabolism
© 2025 Assignment Expert
Correct Answer
Exampromax - Stuvia US
thyroid hormones
The thyroid is under the control of the _________ _____
Correct Answer
pituitary gland
Thyroid Stimulating Hormone (TSH)
Correct Answer
stimulates thyroid gland to produce hormones.
The ____________is the part of the brain that produces Thyroid Releasing
Hormone (TRH)
Correct Answer
hypothalamus
