Chapter 19

Assertion: ADH increases GFR. Reason: ADH cause vasoconstriction thus increase blood pressure, which inturn increase the glomerular blood flow and there by GFR.

Assertion: Nephridia help in osmoregulation in earthworm. Reason: Nephridia maintain fluid and ionic balance in earthworm.

Assertion: Antennal glands perform the excretory function in prawns. Reason: Malpighian tubules are present in crustacean for osmoregulation

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.

Assertion: Nitrogenous waste in PCT absorb passively. Reason: It absorb by the process of diffusion down the concentration gradient.

Assertion: Uricotelism is terrestrial adaptation. Reason: Uricotelism is least toxic and require minimum water for its excretion.

Assertion: Diabetes mellitus can be diagnosed by urine analysis Reason: Glucose appear in urine in diabetes mellitus condition termed as glycosuria.

Assertion: Most of the secretion of liver is pass out along with faecal matter. Reason: Bile juice is secreted in digestive tract.