What would not be true for steroid hormones like corticosteroids?

1. Steroids are lipids with complex ring structures.
2. Steroids can pass through their target cell membrane and interact with receptors in the nucleus.
3. Steroids employ first and second messengers that amplify the cellular response.
4. The estrogens and testosterone are examples of steroid hormones.

Subtopic:  Mechanism of Hormone Action |
 73%

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Modified fatty acids, prostaglandins, act as localized hormones that regulate neighboring cells. Such a regulation is called as:
1. endocrine
2. paracrine
3. eccrine
4. glycoprotein

Subtopic:  Hormones: General Consideration |
 60%

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Which of the following correctly describes the role of cAMP and the hormones employing it?
1. binding site; nonsteroid
2. membrane receptor; steroid
3. activity site; G protein
4. second messenger; nonsteroid

Subtopic:  Mechanism of Hormone Action |
 81%

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Oxytocin and ADH are synthesized:
1. in neurosecretory cells that originate in the hypothalamus
2. in the posterior pituitary
3. in the hypothalamic-hypophyseal portal system
4. in the pineal

Subtopic:  Pituitary & Hypothalamus |
 69%
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Growth hormone is secreted by the:
1. mammatropes
2. gonadotropes
3. corticotropes
4. somatotropes

Subtopic:  Human Growth Hormone |
 76%

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Under stress, the human body shows an increased secretion of:
1. thyroid-stimulating hormone
2. adrenocorticotropic hormone
3. luteinizing hormone
4. prolactin

Subtopic:  Adenohypophysis & Hypothalamus |
 84%

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It is not advised to consume alcoholic beverages on hot days because alcohol inhibits the release of:
1. antidiuretic hormone
2. oxytocin
3. thyroxine
4. triiodothyronine

Subtopic:  Pituitary & Hypothalamus |
 86%

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The peptide thyroid hormone that lowers calcium and phosphate ion concentration in the blood is:

1. thyroxine 2. triiodothyronine
3. calcitonin 4. thyroid-stimulating hormone
Subtopic:  Thyroid Gland Part I |
 82%
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A condition of severely stunted physical and mental growth owing to untreated congenital deficiency of thyroid hormone (congenital hypothyroidism) usually owing to maternal hypothyroidism, is known as:
1. Grave's disease
2. cretinism
3. Hashimoto's disease
4. myxedema

Subtopic:  Thyroid Gland Part I |
 69%
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The most likely cause of the Type I [juvenile-onset IDDM] is:
1. The receptors on the target cells become no longer responsive to insulin.
2. Immune cells attack the pancreas that can then no longer produce insulin.
3. The individual consumes too much sugar, which causes an overload in the bloodstream.
4. Obesity seems to be the most common cause of IDDM.

Subtopic:  Pancreas: I |
 56%

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