Excretory System of Cockroach

Which one of the following statements is incorrect?

(a) In cockroaches and prawns excretion of waste material occurs through Malpighian tubules.

(b) In ctenophores, locomotion is mediated by comb plates.

(c) In Fasciola Flame cells take part in excretion

(d) Earthworms are hermaphrodites and yet cross fertilisation take place among them.

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

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

What is meant by Ammonotelism?

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

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

Identify the following parts of the Respiratory system of a cockroach in the correct order of 1., 2., 3. and 4 : Choose the option with correct sequence.

1. 1.⇛ Organs, 2. ⇛ Spiracles, 3. ⇛ Tracheoles , 4. ⇛ Trachea.

2. 1.⇛ Spiracles, 2. ⇛ Trachea, 3. ⇛ Tracheoles, 4. ⇛ Organs.

3. 1.⇛ Tracheoles, 2. ⇛ Organs, 3. ⇛ Spiracles, 4. ⇛Trachea.

4. 1.⇛ Trachea, 2. ⇛ Tracheoles, 3. ⇛ Organs, 4. ⇛ Spiracles.

What is the most Toxic Nitrogenous Waste?

Excretory organs in Periplaneta are:

1. Nephridia

2. Flame cells

3. Solenocytes

4. Malpighian tubules

Do insects have a digestive system?

Are reptiles uricotelic?

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

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.

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

Draw a well-labeled diagram showing the alimentary canal of a cockroach and label any four parts. What is meant by paurometabolous development in cockroaches?

1. Malphigian tubules
2. Raphids
3. Ureters
4. Nephridia

1. ureotelic
2. uricotelic
3. ammonotelic

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

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Nitrogenous waste products are eliminated mainly as

1. Urea in tadpole as well as in adult frog

2. Urea in tadpoles and ammonia in adult frog

3. Urea in tadpole and uric acid in the adult frog.

4. Urea in adult frogs and ammonia in tadpoles.

1. A- Malpaghian tubles; B- hepatic caecae
2. A- hepatic caecae; B- Malpighian tubules
3. A- fat bodies; B- vesa efferentia
4. A- vas deferens; B- fat bodies

1. Lung
2. Trachea
3. Skin
4. None of these

1. Ammonotelic
2. Uricotelic
3. Ureotelic over land
4. Ureotelic in water

1. Tergum
2. Hepatic caecum
3. Trachea
4. Malpighian tubule

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