Fsc part 2 online preparation for biology chapter 15 (Homeostasis)

Question # 1

Give adaptation of marine fish for its survival in cold environment.

Ans 1: These fishes have a thick layer of insulting fat called blubber, which prevent excess heat loss from the body.

Question # 2

Define dialysis.Give its types.

Ans 1: When the kidneys of a patient are failed then nitrogenous wastes are removed by filtering blood through dialysis.Dialyzing machine is called artificial kidney machine.
It has two types:
1. Peritoneal dialysis
2. Hemodialysis

Question # 3

Define anhydrobiosis with an example.

Ans 1: The ability to tolerate dehydration, this process is called anhydrobiosis.For example: Kangaroo Rat a desert animal can tolerate dehydration without drinking water by feeding desert plants containing more carbohydrates, which produce water of metabolism.

Question # 4

Name waste products produced during metabolism of purine and pyrimidine.

Ans 1: Waste products of purine and pyrimidine are hypoxanthine, xanthine, uric acid, allantoin, urea and ammonia.

Question # 5

Define Excretion.

Ans 1: Removal of waste products (especially nitrogenous wastes) from the body is called excretion.

Question # 6

Differentiate between ureotelic and uricotelic animals.

Ans 1: Ureotelic Animals: Animals which excrete urea are called ureotelic e.g sharks.
Ans 2: Uricotelic Animals: Animals which excrete uric acid are called Uricotelic.e.g Birds, insects.

Question # 7

Define the process of painting with one example.

Ans 1: It is structural adaptation for heat regulation in dogs.Panting is evaporative cooling in the respiratory tract for temperature regulation.

Question # 8

Differentiate between hydrophytes and mesophytes.

Ans 1: Hydrophytes: Hydrophytes are the plant which grow in aquatic environment (abundant water),they have large leave surface area and stomata are present on the upper side of leaves, they have high rate of transpiration. E.g., Water lilli, Wolfia, Pistia etc.
Ans 2: Mesophytes: These are the plants which grow on land where moderate water is available: they open their stomata during flooding and close stomata during drought.For Example: rose and mango.

Question # 9

Illustrate the function of Malpighian Tubules.

Ans 1: Malpighian tubules extracted waste products from the haemolymph of insects and they pour it into digestive tract, where they are converted into nitrogenous wastes

Question # 10

Define excretophore./what are excretophores %why?

Ans 1: Leaves are called excretophore because they collect nitrogenous waste from different plant parts and they store temporarily, at autumn season plants shed their leaves and wastes are removed from plant body.

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Fsc part 2 online preparation for biology chapter 15 (Homeostasis)

Online Short Questions For Chapter 1 "12th Class Biology Chapter 15 Short Questions Preparation "

Biology - 12th Class Biology Chapter 15 Short Questions Preparation

Give adaptation of marine fish for its survival in cold environment.

Define dialysis.Give its types.

Define anhydrobiosis with an example.

Name waste products produced during metabolism of purine and pyrimidine.

Define Excretion.

Differentiate between ureotelic and uricotelic animals.

Define the process of painting with one example.

Differentiate between hydrophytes and mesophytes.

Illustrate the function of Malpighian Tubules.

Define excretophore./what are excretophores %why?

Prepare Complete Set Wise Questions For Chapter 1 "12th Class Biology Chapter 15 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

12th Class Biology Chapter 15 Short Questions Preparation - Set 1

Give adaptation of marine fish for its survival in cold environment.

Define dialysis.Give its types.

Define anhydrobiosis with an example.

Name waste products produced during metabolism of purine and pyrimidine.

Define Excretion.

Differentiate between ureotelic and uricotelic animals.

Define the process of painting with one example.

Differentiate between hydrophytes and mesophytes.

Illustrate the function of Malpighian Tubules.

Define excretophore./what are excretophores %why?

12th Class Biology Chapter 15 Short Questions Preparation - Set 2

Give two adaptation of plants to high temperature condition.

Differentiate between hydrophytes and mesophytes.

Differentiate between ureotelic and uricotelic animals.

What are different metabolic wastes in humans?

What is metanephridium?

Give adaptation of marine fish for its survival in cold environment.

Give the role of contractile vacuole.

What is hypertonic environment and what changes occur in a cell in such environment?

Name two hormones involved in nephron.

What is renal failure?

12th Class Biology Chapter 15 Short Questions Preparation - Set 3

Name waste products produced during metabolism of purine and pyrimidine.

What is hypertonic environment and what changes occur in a cell in such environment?

Differentiate between hydrophytes and mesophytes.

Give two adaptation of plants to high temperature condition.

Why ammonia is more toxic than other nitrogenous wastes?

Write two types of synthesis functions of liver and effects on homeostasis.

What are effects of ADH and Aldosterone on work of nephron?

What is flame cell Why it is called so?

What is hemodialysis and peritoneal dialysis?

Give adaptation of marine fish for its survival in cold environment.

12th Class Biology Chapter 15 Short Questions Preparation - Set 4

Illustrate the function of Malpighian Tubules.

What is flame cell Why it is called so?

Name two hormones involved in nephron.

Write four osmoregulatory adaptations in xerophytes.

Name waste products produced during metabolism of purine and pyrimidine.

What is renal failure?

What are effects of ADH and Aldosterone on work of nephron?

What are Xerophytes?Give its examples.

What is hemodialysis and peritoneal dialysis?

Define excretophore./what are excretophores %why?

12th Class Biology Chapter 15 Short Questions