Ch 34-3

ch 34-3 Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. ____

1. Reabsorption of useful substances back into the blood from the collecting tubule of the kidney occurs in the glomerulus. _________________________

____

2. During reabsorption in the renal tubule of the kidneys, glucose and water enter capillaries in the nephron. _________________________

____

3. Blood pressure in the glomerulus is higher than the blood pressure in most of the body’s other capillary vessels. _________________________

____

4. In the kidneys, the process of reabsorption differs from the process of filtration because water exits the convoluted tubule during reabsorption. _________________________ Multiple Choice Identify the choice that best completes the statement or answers the question.

Figure 34-3

____

____

____

____

____

____

____

____

5. Examine Figure 34-3, which shows a nephron. Which of the following processes occurs in Structure B? a. filtration c. reabsorption b. dialysis d. urination 6. In which structure of Figure 34-3 does filtrate become urine? a. Structure A c. Structure C b. Structure B d. Structure D 7. Which of the following structures in Figure 34-3 contains blood? a. Structure A c. Structure C b. Structure B d. Structure D 8. A patient has a large amount of glucose in her urine. What does this most likely indicate? a. The patient is in good health. b. The patient’s kidney’s are damaged. c. The patient’s circulatory system is failing. d. The patient is eating too many carbohydrates. 9. Which of the following blood components do the kidney’s filter? a. plasma c. red blood cells b. platelets d. white blood cells 10. During which of the following processes inside the nephron do water and nitrogenous wastes exit the bloodstream? a. absorption c. filtration b. reabsorption d. urea formation 11. During filtration and reabsorption, which of the following particles never leave the bloodstream? a. salt c. glucose b. water d. red blood cells 12. How is salt excreted from the body? a. through urine alone c. through sweat and breath b. through urine and breath d. through urine and sweat Completion Complete each statement. 13. During the process of ____________________, water enters the renal capillaries. 14. The ____________________ are to the urinary bladder as the bronchi are to the lungs. 15. The nephron is to the kidney as the ____________________ is to the lung.

ch 34-3 Answer Section MODIFIED TRUE/FALSE 1. ANS: F, renal tubule PTS: NAT: 2. ANS: REF: 3. ANS: REF: 4. ANS: REF:

1 LS_5d T 1007 T 1006 T 1007

DIF: Bloom's Level A TOP: 34-9 PTS: NAT: LS_5d TOP: PTS: NAT: LS_5d TOP: PTS: NAT: LS_5d TOP:

REF: 1007 1 34-9 1 34-8 1 34-9

DIF: Bloom's Level A DIF: Bloom's Level C DIF: Bloom's Level D

MULTIPLE CHOICE 5. ANS: A Structure B is the Bowman’s capsule where filtration occurs in the nephron. Feedback A B C D

That's correct! Try again. You're on the right track. Urination does not occur inside the nephrons.

PTS: 1 DIF: Bloom's Level C REF: 1006 NAT: LS_5d TOP: 34-9 6. ANS: D Water, glucose, minerals, and other useful substances are forced out of the convoluted tubule in the loop of Henle. Urine is the substance that remains. Feedback A B C D

Refer to page 1006 for more information. Try again. You're on the right track. That's correct!

PTS: 1 DIF: Bloom's Level D REF: 1007 NAT: LS_5d TOP: 34-8 7. ANS: A The glomerulus is composed of a ball of tiny capillaries through which blood flows into and out of the Bowman’s capsule. Feedback A B C

That's correct! You're on the right track. Try again.

D

Examine the figure closely.

PTS: 1 DIF: Bloom's Level B NAT: LS_5d TOP: 34-8 8. ANS: B Glucose should be reabsorbed by the bloodstream in the kidney.

REF: 1006

Feedback A B C D

There should be none or only a small amount of glucose in a person's urine. That's correct! Try again. Blood-glucose levels are carefully regulated and cannot be disrupted by eating too many carbohydrates.

PTS: 1 DIF: Bloom's Level E NAT: LS_5d TOP: 34-7 9. ANS: A Kidneys only filter particles that are smaller than cells.

REF: 1007

Feedback A B C D

That's correct! Try again. Red blood cells are too large to be filtered by the kidneys. Did you consider all the factors?

PTS: 1 DIF: Bloom's Level E REF: 997 | 1006 NAT: LS_5d TOP: 34-9 10. ANS: C During filtration, water and substances dissolved in water, such as the toxic nitrogenous waste product called urea, are pushed out of the bloodstream through the capillary walls into the Bowman’s capsule. Feedback A B C D

Try again. Refer to page 1007 for more information. That's correct! Did you consider all the factors?

PTS: 1 DIF: Bloom's Level C REF: 1006 NAT: LS_5d TOP: 34-9 11. ANS: D During filtration, large particles such as red blood cells and large proteins remain in the bloodstream. Feedback A B C D

Refer to page 1007 for more information. Water is an essential part of urine. You're on the right track. That's correct!

PTS: 1 NAT: LS_5d

DIF: Bloom's Level D TOP: 34-9

REF: 1006

12. ANS: D Salt is excreted in urine and in sweat produced by the sweat glands of the skin. Feedback A B C D

Refer to page 1005 for more information. Salt is not excreted by the lungs. You're on the right track. That's correct!

PTS: 1 NAT: LS_5d

DIF: Bloom's Level E TOP: 34-7

REF: 1005–1006

PTS: 1 NAT: LS_5d 14. ANS: ureters

DIF: Bloom's Level B TOP: 34-9

REF: 1007

PTS: 1 NAT: LS_5d 15. ANS: alveolus

DIF: Bloom's Level E TOP: 34-8

REF: 1007

DIF: Bloom's Level E TOP: 34-7

REF: 1006

COMPLETION 13. ANS: reabsorption

PTS: 1 NAT: LS_5d