Excretory System in Animals

Q.

Describe the structure and function of nephrons.

Q.

The function of potassium hydroxide (KOH) is to

1. Release oxygen for respiration.

2. Remove water vapor from the flask.

3. Enhance respiration.

4. Absorb carbon dioxide released by germinating seeds.

Q.

Presence of which of the following conditions in urine are indicative of diabetes mellitus?

1. Ketonuria and Glycosuria

2. Renal calculi and Hyperglycaemia

3. Uremia and Ketonuria

4. Uremia and Renal Calculi

Q.

What are flame cells?

Q.

Difference between partial rebreather mask and nonrebreather mask.

Q.

Which of the following parts of the nephron is not situated in the cortical region of the kidneys?

1. Proximal convoluted tubule

2. Distal convoluted tubule

3. Malpighian corpuscle

4. Henle’s loop

Q.

Which one is not an excretory organ?

1. Skin

2. Liver

3. Kidneys

4. Intestine

Q.

Among the following, which is the excretory product in fishes?

1. Uric acid

2. Ammonia

3. Urea

4. Urea and water

Q.

The main excretory product in insects is uric acid.

1. i). a ., ii).c., iii). d., iv). b., v).e

2. i). d., ii). a., iii). e., iv). c., v).b

Q.

What are malpighian tubules in cockroaches?

Q.

Which of the following parts of a nephron is present in medulla region of a kidney?

1. Loop of Henle

2. Malpighian corpuscle

3. Distal convoluted tubule

4. Proximal convoluted tubule

Q.

Are birds ureotelic?

Q.

Glandular epithelium develops from:

1. Proliferation of epithelial cells into the connective tissue

2. Proliferation of connective tissue into the epithelial cells

3. Proliferation of epithelial cells into the muscular tissue

4. None of the above

Q.

Do fish have kidneys?

Q.

Differentiate between excretion and osmoregulation.

Q.

Where are kidneys present?

Q.

Compared to ammonia and urea, uric acid is least toxic and least soluble in water.

1. False

2. True

Q.

The glomerulus is the network of capillaries present in the Bowmans capsule.

1. True
2. False

Q.

Which is the excretory organ in amoeba?

1. Nephridia

2. Malpighian tubule

3. Kidney

4. Contractile vacuole

Q. The cell maintains homeostasis. What do you mean by homeostasis and why does the cell maintain it

Q.

Which of these organisms have uric acid as an excretory product?

1. Insects

2. Reptiles

3. Amoeba

4. Earthworms

Q.

What are the functions of Parapodia & Nephridia?

Q.

Are sharks ureotelic?

Q.

Which structure carries out excretory functions in crustaceans?

Q.

Which organelle of the cell in animals helps in osmregulation?

Q. Animals of colder region and fish of cold water have thick layer of substaneous fat

Q.

Mention one adaptation present in the following animals- 1. In camels to keep their bodies away from the heat of the sand. 2. In frogs to enable them to swim. 3. In dolphins and whales to breathe in the air when they swim near the surface of the water.

Q.

Malpighian tubules are excretory organs in insects.

1. True

2. False

Q.

In the experiment to show that CO₂ is given out during respiration, the small test tube containing KOH solution is

1. dipped in the water in the beaker

2. hanged outside the beaker containing water

3. hanged in the conical flask

4. hanged from delivery tube outside the conical flask.

Q.

A condition of failure of the kidney to form urine is called

1. Anuria

2. Ketonuria

3. Hematuria

4. Creatinine