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  • DxvidGrFs

  • 問題数 45 • 12/11/2024

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    問題一覧

  • 1

    In general, steroid hormones bind to receptors on cell membranes, whereas peptide hormones bind to receptors inside of cells.

    false

  • 2

    According to the article, metabolism is composed of all the chemical processes happening in your body’s cells every second

    true

  • 3

    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

  • 4

    During the fed state, there is net synthesis of fat, glycogen, and protein, but this process is reversed during the fasted state.

    true

  • 5

    Which of the following is least likely to be filtered into Bowman's capsule in a normal, healthy person?

    protein

  • 6

    What statement is true

    Hydrophobic hormones like steroid and thyroid hormones need binding proteins because they are not very soluble in the blood plasma.

  • 7

    Iodine is needed for the production of triiodothyronine (T3) and thyroxine (T4) by the thyroid gland.

    true

  • 8

    The kidneys produce urine of a constant composition at all times, in order to maintain homeostasis of extracellular fluid.

    false

  • 9

    Which is an example of long-loop negative feedback?

    inhibition of corticotropin-releasing hormone (CRH) by cortisol.

  • 10

    Diabetes is a type of Inborn Error of Metabolism.

    false

  • 11

    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

  • 12

    Increased levels of cortisol in the blood will feed back to reduce Corticotropin Releasing Hormone via long-loop negative feedback.

    true

  • 13

    Constriction of the afferent arterioles increases hydrostatic pressure in the glomerular capillaries and thus increases glomerular filtration rate.

    false

  • 14

    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.

  • 15

    One of the major functions of bile salts is

    to emulsify fat to smaller particles (fatty droplets).

  • 16

    Your body stores glucose as?

    glycogen

  • 17

    The lumen of the gastrointestinal tract is continuous with the external environment.

    true

  • 18

    A zymogen

    is the inactive form of an enzyme

  • 19

    Anabolism is the breakdown of macronutrients that you consume into their simpler forms.

    false

  • 20

    When food is consumed the site where digestion begins is the

    Mouth

  • 21

    The products of lipid digestion/emulsification in the small intestine are absorbed into the capillaries at the intestinal villi.

    false

  • 22

    The food bolus entering into the stomach from the esophagus helps to stimulate the gastric phase of digestion.

    true

  • 23

    Which of the following is an Acquired Metabolic Disorder?

    All of the above

  • 24

    Polysaccharides must be broken down to disaccharides in order to be absorbed.

    false

  • 25

    In the stomach, parietal cells secrete

    hydrochloric acid

  • 26

    There are three basic renal processes for urine formation. Which of the following is NOT one of these processes?

    Excretion

  • 27

    Which of the following acts to decrease blood glucose levels?

    insulin

  • 28

    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

  • 29

    Members of which group of hormones are made from cholesterol?

    steroid

  • 30

    A reduction in thyroid hormone secretion would tend to cause an increase in metabolic rate.

    false

  • 31

    If a substance is partially filtered at the glomerulus and is completely secreted it will not be present in the urine.

    false

  • 32

    The endocrine system communicates with target cells by way of

    chemical messengers secreted into the blood stream.

  • 33

    The muscular contractions that move material through the digestive tract are called

    peristalsis

  • 34

    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

  • 35

    What term describes hormones that influence the secretion of other hormones?

    tropic

  • 36

    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

  • 37

    Weight loss, rapid heart rate, and heat sensitivity are likely symptoms of

    Hyperthyroidism

  • 38

    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

  • 39

    Which of the following structures composes the renal corpuscle?

    Glomerular capillaries and Bowman's capsule

  • 40

    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

  • 41

    Which of the following hormones is released in response to real or perceived physiological stress?

    cortisol

  • 42

    Thyroid hormones increase metabolic rate, at least in part, by inhibiting the activity of the Na+/K+ ATPase.

    false

  • 43

    Which are hormones secreted by the posterior pituitary?

    antidiuretic hormone (ADH) and oxytocin

  • 44

    Which hormone does Growth hormone cause to be released from the liver

    Insulin like growth factor

  • 45

    Voluntary control of defecation is associated with relaxation of the internal sphincter.

    false