Head and Mouth Parts in Cockroach

Q. Fill in the correct number of mouth parts of a cockroach.

Mouth Part	Number
Labrum
Mandibles
Maxillae
Labium
Hypopharynx

1. 2, 2, 2, 2, 1
2. 1, 2, 2, 1, 1
3. 1, 2, 1, 1, 2
4. 1, 2, 2, 1, 2

Q.

If the head of cockroach is removed, it may live for few days because :

1. the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body

2. the head holds a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.

3. the supra-oesophageal ganglia of the cockroach are situated in the ventral part of the abdomen

4. the cockroach does not have a nervous system.

Q. The type of mouth parts present in cockroach are

1. piercing and sucking type
2. sponging type
3. siphoning type
4. biting and chewing type

Q. How many segments fuse together to form the head of the cockroach?

1. 5 segments
2. 7 segments
3. 4 segments
4. 6 segments

Q. The exoskeleton in cockroach is made up of plates called

1. sclerites
2. tergites
3. sternites
4. arthrodial membrane

Q. Which of the following are sensory organs in a cockroach?

1. Antennae
2. Gizzard
3. Ommatidia
4. Anal cerci

Q.

Which of the following statements is/are, not correct, regarding the head of a cockroach.

i). It is formed by the fusion of 8 plates.

ii). Head is arranged in an axis perpendicular to the axis of the body.

iii). Mouth parts are of varying sizes.

iv). Head is Hexagonal in shape.

1. (i) and (ii)

2. (iii) and (iv)

3. (i) and (iv)

4. (ii) and (iii)

Q. The head of the cockroach is called

1. epignathous
2. agnathous
3. none of the above
4. hypognathous

Q.

Match the following terms with their morphology with regard to cockroach:

Column I	Column II
1. Chitin	a. Hard exoskeleton plates
2. Sclerites	b. Articular membrane
3. Tergites	c. Protein of exoskeleton
4. Sternites	d. Sclerites on dorsal side
5. Arthrodial membrane	e. Sclerites on ventral side

1. 1.⇒ b, 2.⇒ a, 3.⇒ c, 4.⇒ d, 5.⇒ e.

2. 1.⇒ c, 2.⇒ d, 3.⇒ e, 4.⇒ b, 5.⇒ a.

3. 1.⇒ d, 2.⇒ e, 3.⇒ a, 4.⇒ b, 5.⇒ c.

4. 1.⇒ c, 2.⇒ a, 3.⇒ d, 4.⇒ e, 5.⇒ b.

Q.

What type of mouthparts are present in cockroach

1. biting and chewing type

2. sponging type

3. piercing and sucking type

4. siphoning type

Q. Largest sclerite of head in cockroach is__________

1. Clypeus
2. Frons
3. epicranial plate
4. Gena

Q. The functional unit of nervous system in a cockroach is .

1. Malpighian tubules
2. ganglia
3. gizzard
4. sinus

Q.

Mouth parts of cockroach are of this type:

1. Siphoning and sucking

2. Piercing and sucking

3. Sponging and sucking

4. Biting and chewing

Q. Fill in the correct number of mouth parts of a cockroach.

Mouth Part	Number
Labrum
Mandibles
Maxillae
Labium
Hypopharynx

1. 1, 2, 1, 1, 2
2. 2, 2, 2, 2, 1
3. 1, 2, 2, 1, 1
4. 1, 2, 2, 1, 2

Q. which are the most primitive type of mouth parts

1. siphoning type
2. biting and chewing type
3. sponging and sucking type
4. sucking type

Q. Which of the following are sensory organs in a cockroach?

1. Antennae
2. Gizzard
3. Ommatidia
4. Anal cerci

Q. How many segments fuse together to form the head of the cockroach?

1. 5 segments
2. 4 segments
3. 6 segments
4. 7 segments

Q. How many of the given statements are true?

A) In a cockroach, the brain is represented by a supra-oesophageal ganglion that supplies nerves to the maxillary and labial palps.
B) The compound eyes are situated at the ventral surface of the head.
C) Each compound eye consists of 200 hexagonal ommatidia.

1. One
2. Two
3. Three
4. None of the above

Q. The type of mouth parts present in cockroach are

1. piercing and sucking type
2. sponging type
3. siphoning type
4. biting and chewing type

Q.

Mouth parts of cockroach are of this type:

1. Piercing and sucking

2. Sponging and sucking

3. Biting and chewing

4. Siphoning and sucking

Q. Sound box of birds is called

1. Pygostyle
2. Larynx
3. Syrinx
4. Synsacrum

Q. In Frog the tongue is attached

1. Posteriorly
2. Laterally
3. Anteriorly
4. Absent

Q. In insects, muscle contraction, oviposition defecation and heartbeats are regulated by

1. Corpora allata
2. Corpora cardiaca
3. Protocerebrum
4. Thoraic ganglion

Q. When the mouth parts of a cockroach are observed, it appears that they are placed in a typical downward arrangement with a smaller upper lip (labrum) and a larger lower lip (labium).This sort of arrangement is called______________________ condition.

1. Hypostomial

2. Hyperstomial

3. Hypergnathous

4. Hypognathous

Q. The functional unit of nervous system in a cockroach is .

1. Malpighian tubules
2. ganglia
3. gizzard
4. sinus

Q. The segment of earthworm in which mouth is situated is called

1. Prosoma
2. Prostomium
3. Peristomium
4. Prosegment

Q. Incipient heterospory is linked with organism bearing one of the following.

1. Glumes
2. Ligule
3. Scutellum
4. Coleoptile

Q. Which of the following systems in man is affected by the bite of cobra?

1. Digestive
2. Nervous
3. Excretory
4. Circulatory

Q. The type of blastula formed in birds is

1. Teloblastula
2. Holoblastula
3. Coeloblastula
4. Discoblastula

Q. Largest sclerite of head in cockroach is__________

1. Clypeus
2. Frons
3. epicranial plate
4. Gena