問題一覧
1
According to the article, metabolism is composed of all the chemical processes happening in your body’s cells every second
true
2
Anabolism is the breakdown of macronutrients that you consume into their simpler forms.
false
3
Your body stores glucose as?
glycogen
4
Which of the following is an Acquired Metabolic Disorder?
All of the above
5
Diabetes is a type of Inborn Error of Metabolism.
false
6
The endocrine system communicates with target cells by way of
chemical messengers secreted into the blood stream.
7
Members of which group of hormones are made from cholesterol?
steroid
8
In general, steroid hormones bind to receptors on cell membranes, whereas peptide hormones bind to receptors inside of cells.
false
9
The hypophyseal portal system (circulation) refers to the blood vessels that link the anterior pituitary with the target glands of the anterior pituitary hormones.
false
10
What statement is true
Hydrophobic hormones like steroid and thyroid hormones need binding proteins because they are not very soluble in the blood plasma.
11
Which are hormones secreted by the posterior pituitary?
antidiuretic hormone (ADH) and oxytocin
12
Correctly match each hypothalamic releasing hormone with the hormone it causes to be released from the anterior pituitary. Correctly match each hypothalamic releasing hormone with the hormone it causes to be released from the anterior pituitary.
GHRH: GH; TRH: TSH; GnRH:LH and FSH; CRH:ACTH
13
Which is an example of long-loop negative feedback?
inhibition of corticotropin-releasing hormone (CRH) by cortisol.
14
A reduction in thyroid hormone secretion would tend to cause an increase in metabolic rate.
false
15
What term describes hormones that influence the secretion of other hormones?
tropic
16
During the fed state, there is net synthesis of fat, glycogen, and protein, but this process is reversed during the fasted state.
true
17
Which of the following acts to decrease blood glucose levels?
insulin
18
Which of the following hormones is released in response to real or perceived physiological stress?
cortisol
19
Hyperglycemia, skinny arms and legs with extra fat in the face (moon face) and trunk (abdominal striae / stretch marks) are symptoms of
Cushing's Syndrome
20
Weight loss, rapid heart rate, and heat sensitivity are likely symptoms of
Hyperthyroidism
21
Which of the following statements about thyroid hormones is TRUE?
At the level of the target cell, T4 is converted into T3 by deiodinase enzymes.
22
Iodine is needed for the production of triiodothyronine (T3) and thyroxine (T4) by the thyroid gland.
true
23
Increased levels of cortisol in the blood will feed back to reduce Corticotropin Releasing Hormone via long-loop negative feedback.
true
24
Which hormone does Growth hormone cause to be released from the liver
Insulin like growth factor
25
Thyroid hormones increase metabolic rate, at least in part, by inhibiting the activity of the Na+/K+ ATPase.
false
26
The kidneys produce urine of a constant composition at all times, in order to maintain homeostasis of extracellular fluid.
false
27
Given these parts of a nephron: 1. renal corpuscle 2. collecting duct 3. loop of Henle 4. distal tubule 5. proximal tubule. Arrange the parts in order as fluid flows from the filtration membrane through the nephron.
1,5,3,4,2
28
Which of the following structures composes the renal corpuscle?
Glomerular capillaries and Bowman's capsule
29
There are three basic renal processes for urine formation. Which of the following is NOT one of these processes?
Excretion
30
Which of the following is least likely to be filtered into Bowman's capsule in a normal, healthy person?
protein
31
All of the following substances are present in proximal tubular fluid in the kidney, but which one is NOT normally present in urine because it is completely reabsorbed?
glucose
32
If a substance is partially filtered at the glomerulus and is completely secreted it will not be present in the urine.
false
33
Constriction of the afferent arterioles increases hydrostatic pressure in the glomerular capillaries and thus increases glomerular filtration rate.
false
34
ADH is secreted by the posterior pituitary and stimulates the insertion of aquaporins in the cell membranes of the collecting duct which allows for the production of a concentrated urine.
true
35
Angiotensinogen is converted to Angiotensin I by______________, which is then converted into____________ by _________________ and ultimately causes a(n)__________________ in blood pressure.
renin, angiotenisn II, ACE, increase
36
When food is consumed the site where digestion begins is the
Mouth
37
The muscular contractions that move material through the digestive tract are called
peristalsis
38
One of the major functions of bile salts is
to emulsify fat to smaller particles (fatty droplets).
39
The lumen of the gastrointestinal tract is continuous with the external environment.
true
40
The food bolus entering into the stomach from the esophagus helps to stimulate the gastric phase of digestion.
true
41
In the stomach, parietal cells secrete
hydrochloric acid
42
Polysaccharides must be broken down to disaccharides in order to be absorbed.
false
43
A zymogen
is the inactive form of an enzyme
44
The products of lipid digestion/emulsification in the small intestine are absorbed into the capillaries at the intestinal villi.
false
45
Voluntary control of defecation is associated with relaxation of the internal sphincter.
false