Question

I. Choose the correct answer : [7x1=7]

1. The structural and functional unit of the kidney is ........................

a) villi b) liver c) nephron d) ureter

2. Which one of the following substance is not a constituent of sweat ?

a) urea b) protein c) water d) salt

3. Each kidney consists of more than ................. nephrons

a) one million b) two million c) three million d) four million

4. ................... stores urine temporarily .

a) ureters b) urinary bladder c) urethra d) hilum

5. The patient is said to be put on dialysis and the process of purifying blood by an artificial kidney is

called ...........................

a) haemodialysis b) chemodialysis c) radiotherapy d) chemotherapy

6. A healthy person excretes ................ to .............. liters of urine per day

a) one to two b) two to three c) three to four d) two to five

7. The human body functions normally at a temperature of above ....................

a) 37o

c b). 38o

c c) 39o

c d) 40o

c

II. Answer the following questions. [7x2=14]

8. What is micturition ?

9. Mention any two vital functions of human kidney

10. Why do we sweat ?

11. Draw and label the structure of nephron .

12. Differentiate the excretion and secretion

13. State whether true or false. If false correct the statement.

a) Glomerular filtrate consists of many substance like amino acid , vitamins ,hormones , salts ,

glucose and other essential substances .

b) Urea is a toxic substance.

14. Why do you think that urine analysis is an important part of medical diagnosis ?

III. Answer briefly. [1x4=4]

15. Explain the structure of kidney with diagram .​

Answer 1

Answer:

1. nephron

2. protien

3. 1 million

4. urinary bladder

5. kidney transplant because of kidney failure to filter urine so it does not mix with the blood

Answer 2

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1. nephron

2. protien

3. 1 million

4. urinary bladder

5. kidney transplant because of kidney failure to filter urine so it does not mix with the blood