My courses BIO-208-20101: Week 1 Endocrine System and Endocrine Glands

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Which of the following organic molecules include hormones? 1) steroids, 2) proteins, 3) nucleic acid derivatives, 4) polypeptides

1, 2, 4

All of the following occur during exercise in order to maintain blood glucose levels, except ______?

Sympathetic stimulation causes an increase in insulin secretion

_____________ hormones bind to membrane-bound receptors; _____________ hormones bind to nuclear receptors.

Water-soluble, lipid-soluble

What would occur if adrenocorticotropic hormone and cortisol levels increased?

adrenocorticotropic hormone levels would decline from high cortisol levels

What gland secretes FSH and LH, which regulate the production of reproductive hormones by the ovaries and the testes?

anterior pituitary

Increased _________ levels result in decreased __________ activity in the bones, and lengthens the life span of osteoblasts, resulting in ____________ blood calcium levels.

calcitonin, osteoclast, decreased

Identify which of the following is not a function of epinephrine and norepinephrine.

decreased blood glucose levels

Which of the following statements about hormone transport and distribution is not true?

free hormone concentration is not influenced by plasma protein concentration

Hormones secreted by the hypothalamus travel through the _________ from the hypothalamus to the ___________.

hypothalamohypophysial portal system, anterior pituitary gland

Which hormone chemical class typically requires a binding protein for transport in the blood?

lipid-soluble

Which of the following are possible side effects of anabolic steroid use? Check all that apply.

mood changes,testicle size reduction

Chemical messengers that influence the activity of another cell are ___________ chemical messengers. On the other hand, chemical messengers that influence the activity of the same cell that releases them are ___________ chemical messengers.

paracrine; autocrine

Melatonin is released from the ________ and decreases ________ secretion from the hypothalamus.

pineal gland;GnRH

Where are receptors for most water-soluble hormones located?

plasma membrane of their target cells

Which of the following statements about water-soluble hormones is false?

they easily diffuse through capillary walls


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