Excretory System of Cockroach

Q.

Assertion [A] : Malpighian tubules are excretory organs projecting from the colon of the digestive system

Reason [R] : The nitrogenous excretory product is Uric acid.

1. Reason [R] is True and Assertion [A] is False.

2. Assertion [A] is True and Reason [R] is True, but is not a correct explanation to [A]

3. Assertion [A] is True and Reason [R] is True and is a correct explanation to [A]

4. Assertion [A] is True and Reason [R] is False.

Q.

Excretory organs in Periplaneta are:

1. solenocytes

2. Malpighian tubules

3. nephridia

4. flame cells

Q. Structures present at the junction of midgut & hindgut in cockroach are_______

1. help in removal of nitrogenous wastes
2. help in absorption of food
3. help in secretion of enzymes
4. help in digestion of food

Q. Match the following.

1. Units of excretion
2. Synthesise uric acid
3. Stores glycogen
4. Store wastes

Q. Based on the type of excretion, cockroaches are organisms.

1. ureotelic
2. uricotelic
3. ammonotelic

Q. Choose the incorrect pair:

1. Ammonotelic - Starfish
2. Uricotelic - Periplaneta americana
3. Ammonotelic - Homo sapiens
4. Ureotelic - Rana tigrina

Q. The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of :

1. Calcium carbonate
2. Ammonia
3. Potassium urate
4. Urea

Q. Select the correct match

1. Spiracles - ventral side of body in cockroach
2. Excretion - fat body
3. Excretory product - urea in cockroach
4. Tracheoles - opening regulated by sphincters

Q. The nitrogenous waste of cockroach excreted in the form of

1. uric acid
2. urea
3. calcium carbonate
4. ammonia

Q. Malpighian tubules are present at the junction of

1. foregut and midgut
2. midgut and colon
3. midgut and ileum
4. mesentron and foregut