Biology : XI-CH19 – Excretory Products and Their Elimination – Assertion and Reason

Read the assertion and reason carefully to mark the correct option.

10 Random question from this chapter are displayed, you can take the quiz multiple times to cover all questions

1 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Antennal glands perform the excretory function in prawns.

Reason: Malpighian tubules are present in crustacean for osmoregulation.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

2 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Counter-current mechanism is responsible for the concentration of urine.

Reason: Counter-current mechanism helps to maintain the concentration gradient in the medullary interstitium.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

3 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: In the descending limb of loop of Henle, the urine is hypertonic, while in ascending limb of loop of Henle, the urine is Hypotonic.

Reason: Descending limb is impermeable to Na+, while ascending limb is impermeable to H2O.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

4 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Some amount of urea is retain in medullary interstitium.

Reason: This is use to maintain require concentration in medullary interstitium.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

5 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Kidneys maintain the osmotic concentration of the blood.

Reason: Kidneys eliminate either hypotonic or hypertonic urine according to the need of the body.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

6 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Diabetes insipidus is marked by excessive urination and too much thirst for water.

Reason: Anti-diuretic hormone (ADH) is secreted by the posterior lobe of pituitary gland.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

7 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Glomerular filtration is considered as ultrafilteration.

Reason: Blood is filtered so finely through filtration membrane that almost all the constituent of the plasma except the proteins pass onto the lumen of Bowman ’s capsule.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

8 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Filteration is a selective process performed by the glomerulus using the glomerular capillary blood pressure.

Reason: Blood is filtered through fine pores present in PCT.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

9 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: The antidiuretic hormone increases the water permeability of distal convoluted tubule.

Reason: In the absence of ADH, water re-absorption is considerably reduced.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

10 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Micturition in human is completely an endocrine mechanism.

Reason: Micturition reflex is endocrine reflex completely.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

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