Osmoregulation

Q. The organisms which are adapted to a narrow range of salinity are called:

1. Stenohaline
2. Stenothermic
3. Eurythermic
4. Euryhaline

Q. Plants that grow on saline soils are called:

1. Epiphytes
2. Psammophytes
3. Halophytes
4. Parasites

Q. ADH is a hormone that helps in

1. Osmoregulation
2. Thermoregulation
3. Both A and B
4. Vasoconstriction

Q. Increase in production of ADH leads to ___

1. Increase in water retention by kidney
2. Decrease in water retention by kidney
3. Increase in ion exchange by kidney
4. Decrease in ion exchange by kidney

Q.

What is meant by the term osmoregulation?

Q.

Indicate whether the following statements are true or false:

(a) Micturition is carried out by a reflex.

(b) ADH helps in water elimination, making the urine hypotonic.

(c) Protein-free fluid is filtered from blood plasma into the Bowman’s capsule.

(d) Henle’s loop plays an important role in concentrating the urine.

(e) Glucose is actively reabsorbed in the proximal convoluted tubule.

Q. Plants that grow on saline soils are called:

1. Epiphytes
2. Psammophytes
3. Halophytes
4. Parasites

Q. Increase in production of ADH leads to ___

1. Increase in water retention by kidney
2. Decrease in water retention by kidney
3. Increase in ion exchange by kidney
4. Decrease in ion exchange by kidney

Q. ADH is a hormone that helps in

1. Osmoregulation
2. Thermoregulation
3. Both A and B
4. Vasoconstriction

Q. The organisms which are adapted to a narrow range of salinity are called:

1. Stenohaline
2. Euryhaline
3. Stenothermic
4. Eurythermic