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BIO 220 Topic 9 Graded Quiz Latest

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BIO 220 Topic 9 Graded Quiz Latest

BIO 220 Topic 9 Graded Quiz Latest

BIO220

BIO 220 Topic 9 Graded Quiz Latest

Question 1

Which of the following statements is true?

a. Most filtrate (99%) is eliminated as urine.

b. Normal filtrate contains a large amount of protein.

c. Reabsorption of water in the filtrate may be hormonally controlled.

d. Sodium ions are secreted into the filtrate of the proximal convoluted tubule.

e. Hormones play a minor role in fluid homeostasis.

Question 2

Some lung cancers secrete large amounts of ADH. This causes increased water reabsorption in the

a. proximal convoluted tubule.

b. loop of Henle.

c. distal convoluted tubule and collecting ducts.

d. calyces.

e. urethra.

Question 3

The filtrate that drips from the renal papillae into the calyces

a. has a higher concentration of waste products (urea) than the original filtrate.

b. may have lost up to 99% of its original volume.

c. is called urine.

d. has a higher concentration of waste products (urea) than the original filtrate, may have lost up to 99% of its original waste, and is called urine.

e. None of these choices is .

Question 4

What does “D” on the diagram represent?

a. ureters

b. urethra

c. right and left kidneys

d. adrenal glands

e. urinary bladder

Question 5

Which of the following ions are cotransported across the wall of the proximal convoluted tubule, distal convoluted tubule, and the ascending limb of the loop of Henle?

a. sodium and bicarbonate

b. potassium and phosphate

c. sodium and chloride

d. bicarbonate and potassium

e. potassium and chloride

Question 6

What muscle is responsible for contraction of the urinary bladder during micturition?

a. trigone

b. internal urinary sphincter

c. micturition mucle

d. detrusor muscle

Question 7

Most water is reabsorbed from the filtrate in the

a. proximal convoluted tubule.

b. descending loop of Henle.

c. ascending loop of Henle.

d. distal convolute tubule.

e. collecting duct.

Question 8

If the tubular maximum for a particular amino acid is 200 mg/100 ml and the concentration of that amino acid in the blood is 100 mg/100 ml, the amino acid

a. will be actively secreted into the filtrate.

b. will be completely reabsorbed by the tubule cells.

c. will appear in the urine.

d. will not appear in the urine.

e. None of these choices is .

Question 9

Why is the external urinary sphincter under conscious control?

a. It is made of smooth muscle.

b. It is part of the detrusor muscle.

c. It is made of skeletal muscle.

d. It is made of adventitia.

Question 10

To calculate plasma clearance of any substance, it is necessary to know the

a. quantity of urine produced per minute.

b. concentration of the cleared substance in the urine.

c. concentration of the cleared substance in the blood.

d. blood volume.

e. quantity of urine produced per minute, the concentration of the cleared substance in the urine, and the concentration of the cleared substance in the blood.

Question 11

The renal corpuscle connects to the

a. loop of Henle.

b. collecting duct.

c. distal convoluted tubule.

d. renal convoluted tubule.

e. proximal convoluted tubule.

Question 12

In 0.00 points out of 2.50 Trace the path of a red blood cell from the renal artery to the glomerulus:

(1) interlobar artery

(2) interlobular artery

(3) segmental artery

(4) arcuate artery

(5) afferent arteriole

a. 1, 2, 3, 4, 5

b. 1, 4, 2, 3, 5

c. 3, 1, 4, 2, 5

d. 2, 1, 3, 5, 4

e. 1, 4, 3, 2

Question 13

Which of the following is between the proximal and distal convoluted tubules?

a. the glomerulus

b. the loop of Henle

c. the distal convoluted tubule

d. the proximal convoluted tubule

e. collecting duct

Question 14

Blood vessels, nerves, and the ureter enter and leave the kidney at the

a. hilum.

b. renal fascia.

c. renal pelvis.

d. renal capsule.

e. renal pyramid.

Question 15

Once inside the cells of the ascending limb, potassium and chloride cross the basal membrane into the interstitial fluid by the process of

a. facilitated diffusion.

b. cotransport.

c. counter transport.

d. active transport.

e. simple diffusion.

Question 16

Which of the following structures is a capillary?

a. glomerulus

b. loop of Henle

c. collecting duct

d. Bowman’s capsule

e. proximal convoluted tubule

Question 17

Decreased plasma clearance can indicate

a. hypertension.

b. renal failure.

c. decreased ADH secretion.

d. decreased aldosterone secretion.

e. fluid balance.

Question 18

If the following hypothetical conditions exist in the nephron, calculate the net filtration pressure. glomerular capillary pressure = 80 mmHg blood colloid osmotic pressure = 20 mmHg capsular hydrostatic pressure = 10 mmHg

a. 110 mmHg

b. 90 mmHg

c. 50 mmHg

d. 30 mmHg

e. 20 mmHg

Question 19

Which of the following is NOT an effect of aging on the kidneys?

a. decrease in kidney size

b. loss of nephrons

c. decreased response to hormonal control of urine volume

d. a marked decrease in the ability to maintain homeostasis

Question 20

Which of the following situations increases the number of action potentials to the supraoptic region of the hypothalamus?

a. increased blood velocity

b. decreased renin production

c. increased plasma osmolality

d. decreased aldosterone secretion

e. decreased plasma osmolality