APHY 102 Final Exam Questions and Answers 2024
A hormone is a secreted molecule that is carried in the bloodstream to where it acts on target cells that bear specific receptors for that hormone.
- True
- False
True
Maxwell has a very high metabolic rate, is skinny, and has protruding eyes....
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APHY 102 Final Exam Questions and Answers
2024
A hormone is a secreted molecule that is carried in the bloodstream to where it acts on target cells
that bear specific receptors for that hormone.
- True
- False
True
Maxwell has a very high metabolic rate, is skinny, and has protruding eyes. These are symptoms of
-Hyperthyroidism
-Hypothyroidism
-hyperparathyroidism
-hypoparathyroidism
hyperthyroidism
Steroid hormones diffuse through cell membranes, then bind with receptors, whereas nonsteroid
hormones bind receptors on the target cell membrane.
- True
- False
True
The secretion of parathyroid hormone is controlled primarily by the
-pituitary gland
-concentration of blood calcium
-hypothalamus
-thyroid gland
concentration of blood calcium
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As a result of the general stress response, blood concentrations of epinephrine
-fall and cortisol rise
-and cortisol fall
-rise and cortisol fall
-and cortisol rise
and cortisol rise
Choose the example that does not demonstrate a negative feedback loop of hormonal control
- A hormone that increases blood pressure is released. Baroreceptors in the arteries sense the
pressure change and stimulate the brainstem to send signals to dilate blood vessels and counter the
effect, decreasing blood pressure.
- A gland releases hormone that causes free blood glucose to be collected and stored after a meal.
After a time, the gland detects low free blood glucose and ceases production of the hormone.
- Pressure receptors sense the movement of a baby against and through the cervix during labor. They
stimulate the hypothalamus to release a hormone that causes uterine contractions. This causes more
pressure receptor stimulation, leading to larger releases of the hormone and stronger, more frequent
contractions. Hormone release ceases after pressure sensations cease.
Pressure receptors sense the movement of a baby against and through the cervix during labor. They
stimulate the hypothalamus to release a hormone that causes uterine contractions. This causes more
pressure receptor stimulation, leading to larger releases of the hormone and stronger, more frequent
contractions. Hormone release ceases after pressure sensations cease.
,Steroid hormones
- Are very soluble in water
- include epinephrine and norepinephrine
-Must interact with membrane receptors because they are never membrane permeable.
- Are soluble in lipids
Are soluble in lipids
Hormones that the posterior pituitary secretes are synthesized in the
- Anterior pituitary
- Thalamus
- Hypothalamus
- Posterior pituitary
- Hypothalamus
A person under stress may have a lowered resistance to infection
-True
-False
True
"Endocrine" means
- Hormone synthesis
- Acts upon target cells
- Fast-acting compound
- Internal secretion
Internal secretion
Nonsteroid hormones include peptides, proteins, glycoproteins, and amines
- True
- False
True
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A night-shift worker experiences extreme difficulty falling asleep due to being exposed to bright lights
during both night and day. The unusual pattern of light exposure is disturbing their _____, which
controls the release of the hormone ____.
- Metabolic rate; thyroxine
- Circulatory system; dopamine
- Limbic system; thymosin
- Circadian rhythm; melatonin
Circadian rhythm; melatonin
A female patient is experiencing a hormonal imbalance that is causing her to skip menstrual periods
due to low estrogen and miss ovulation. Which of the following is most likely the imbalanced
hormone?
- Prolactin-releasing factor
- Adrenocorticotropic hormone
- Follicle-stimulating hormone
- Growth hormone
Follicle-stimulating hormone
,Oxytocin stimulates the kidneys to conserve water
- True
- False
False
The thymus gland secretes hormones called _____ that _____.
- Thyroxines; control metabolism
- Prostaglandins; control strength
- Thymosins; control production and differentiation of white blood cells
- Melatonins; control circadian rhythms
Thymosins; control production and differentiation of white blood cells
Exocrine glands differ from endocrine glands in that exocrine glands
- Secrete only into the bloodstream
- secrete through ducts or tubes to the body's exterior
- only secrete salts
- secrete only local hormones
secrete through ducts or tubes to the body's exterior
The target cells of releasing hormones are in the anterior pituitary glands
- True
- False
True
The hormone that the pineal gland secretes is
- Myostatin
- Melanoma
- Beta endorphin
- Melatonin
Melatonin
Secretion of insulin causes
- An increase in the concentration of blood glucose
- A decrease in the permeability of cell membranes to glucose
- An increase in the breakdown of glycogen to release glucose
- A decrease in the concentration of blood glucose
A decrease in the concentration of blood glucose
A hormone that stimulates calcium deposition into bone is
- insulin
- thyroxine
- calcitonin
- parathyroid hormone
calcitonin
The sex hormones from the adrenal cortex are primarily androgens
- True
- False
True
A hormone is a _____ and a target cell is _____.
- A molecule that has a metabolic effect on another cell; a cell that has receptors for specific
hormones
- Protein that stimulates other cells; the source of hormone secretions
- Regulatory molecule that controls secretions of other cells; a cell that synthesizes hormones
- Molecule; a cell that does not have receptors
A molecule that has a metabolic effect on another cell; a cell that has receptors for specific hormones
A sweat gland is an example of a(n) _____ gland.
- Endocrine
- Exocrine
- Paracrine
- Autocrine
Exocrine
Simple goiter is most prevalent where the soil lacks
- Vitamins
- Iodine
- Potassium
- Organic matter
Iodine
The two collecting ducts that drain the lymphatic trunks are the
- intestinal duct and left intercostal duct
- lumbar duct and left lymphatic duct
- thoracic duct and right lymphatic duct
- bronchomediastinal duct and subclavian duct
thoracic duct and right lymphatic duct
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In order to be fully activated, most _____ cells require interaction with _____ cells.
- B; T
- T; B
B; T
The structure of a lymphatic vessel is most similar to that of a(n)
- arteriole
- artery
- vein
- capillary
vein
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