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1

____________ are chemicals that travel in body fluids to influence the activity of other cells in a different part of the body.
A)Neurotransmitters
B)Pheromones
C)Hormones
D)All of these are correct.
2

What are the chemicals secreted by one organism that elicit a physiological response in another individual of the same species?
A)Neurotransmitters
B)Pheromones
C)Hormones
D)All of these are correct.
3

What cells respond to a particular hormone?
A)target cells
B)skin cells
C)intestinal cells
D)all cells respond equally
4

True or false. The endocrine system is the body’s only communication system.
A)True
B)False
5

True or false. Peptide hormones enter the nucleus of the cell and activate its DNA.
A)True
B)False
6

____________ is a common second messenger, the formation of which triggers a cascade of biochemical events in a cell.
A)ATP
B)Kinase
C)Cyclic AMP (cAMP)
D)Phosphokinase
7

What type of hormones activate protein synthesis in a cell?
A)protein
B)peptide
C)steroid
D)amino acid
8

True or false. Levels of all circulating hormones are controlled by negative feedback.
A)True
B)False
9

Hormones in invertebrates control ____________?
A)molting and metamorphosis
B)gonad maturation
C)blood sugar level
D)All of these are correct.
10

Human females are _________ ovulators.
A)seasonal
B)cyclic
C)induced
D)All of these are correct.
11

The neuroendocrine center of the brain is the ____________.
A)hypothalamus
B)thalamus
C)pituitary
D)thyroid
12

True or false. The hypothalamus controls releases of hormones from the posterior pituitary using tropic hormones.
A)True
B)False
13

Which of the following hormones are released by the anterior pituitary?
A)thyroid-stimulating hormone (TSH)
B)growth hormone (GH)
C)prolactin (PRL)
D)All of these are correct.
14

What structure produces antidiuretic hormone (ADH)?
A)adrenal glands
B)hypothalamus
C)posterior pituitary
D)anterior pituitary
15

Hypothyroidism that results from a low level of __________ in the diet produces a goiter.
A)calcium
B)potassium
C)iodine
D)chloride
16

True or false. Excess parathyroid hormone is responsible for a condition known as osteoporosis.
A)True
B)False
17

What class of hormones is responsible for the body’s response to prolonged stress?
A)mineralocorticoids
B)gonadocorticoids
C)glucocorticoids
D)All of these are correct.
18

True or false. The adrenal cortex releases small amounts of male hormones in females.
A)True
B)False
19

What hormone regulates the rate of nutrient absorption into the bloodstream?
A)somatostatin
B)insulin
C)glucagon
D)All of these are correct.
20

True or false. The pineal gland produces the hormone melatonin that is associated with light-dark cycles.
A)True
B)False
21

True or false. Follicle-stimulating hormone (FSH) is released only by the ovaries.
A)True
B)False
22

_____________ function at the site from which they are released.
A)Prostaglandins
B)Steroid hormones
C)Mineralocorticoids
D)Glucocorticoids





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