Multiple Choice Questions (MCQs) for NEET Biology: Cockroach
Explore reliable objective questions for Cockroach tailored for NEET learners. Utilizing these Biology multiple-choice formats ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.
Practice Cockroach MCQs for NEET Biology
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Multiple Choice Questions
(a) Mosaic vision
(b) Superposition vision
(c) More sensitivity
(d) Less resolution
Show Answer & Explanation
Answer: (b) Superposition vision
Explanation:
1. The cockroach has compound eyes that give mosaic vision with more sensitivity but less resolution.
2. Superposition vision is not the type described for the cockroach.
Teacher's Note:
1. A mosaic image is formed from many ommatidia.
2. Each eye has about 2000 ommatidia.
(a) Ocelli : simple eyes in the cockroach
(b) Hypopharynx : a mouth part that acts as a tongue
(c) Antennae : touch receptors only
(d) Elytra : mesothoracic wings
Show Answer & Explanation
Answer: (c) Antennae : touch receptors only
Explanation:
1. Antennae are sensory and carry both tactile and olfactory receptors, not touch receptors only.
2. The other matches are correct.
Teacher's Note:
1. Elytra (tegmina) are the forewings.
2. The hypopharynx acts as a tongue.
(a) Blood vessels are poorly developed
(b) Plasma, haemocytes and erythrocytes are present
(c) The heart chambers possess ostia on either side
(d) Paired alary muscles are present
Show Answer & Explanation
Answer: (b) Plasma, haemocytes and erythrocytes are present
Explanation:
1. The cockroach has an open circulatory system with haemolymph that contains plasma and haemocytes.
2. It has no erythrocytes, so (b) is incorrect.
Teacher's Note:
1. The heart has 13 chambers.
2. Haemolymph does not carry oxygen.
(a) Labrum
(b) Mandibles
(c) Hypopharynx
(d) Labium
Show Answer & Explanation
Answer: (c) Hypopharynx
Explanation:
1. The hypopharynx (tongue) is not chitinous, but the labrum, mandibles and labium have chitin.
Teacher's Note:
1. The mandibles are the hardest mouth parts.
2. The hypopharynx is a flexible lobe.
(a) Antennae
(b) Anal style
(c) Anal cerci
(d) Oothecal pore
Show Answer & Explanation
Answer: (c) Anal cerci
Explanation:
1. The tenth abdominal segment of both sexes bears a pair of anal cerci.
Teacher's Note:
1. Anal styles are present only in males.
2. Cerci are sensory.
(a) Pedicel
(b) Palpiger
(c) Scape
(d) Flagellum
Show Answer & Explanation
Answer: (c) Scape
Explanation:
1. An antenna has a basal scape, then a pedicel and a long flagellum.
Teacher's Note:
1. The flagellum is made of many segments.
2. The antenna lies in a socket.
(a) Dorsal
(b) Lateral
(c) Ventral
(d) Mid-dorsal
Show Answer & Explanation
Answer: (c) Ventral
Explanation:
1. The labium (second maxillae fused together) forms the ventral wall of the pre-oral cavity.
Teacher's Note:
1. The labrum is dorsal.
2. The mandibles and first maxillae are lateral.
(a) Gustatory receptors only
(b) Chemoreceptors only
(c) Tactile receptors only
(d) Tactile and olfactory receptors
Show Answer & Explanation
Answer: (d) Tactile and olfactory receptors
Explanation:
1. The antennae carry tactile (touch) and olfactory (smell) receptors.
Teacher's Note:
1. They monitor the environment.
2. Maxillary palps carry gustatory receptors.
(a) Anal style
(b) Oötheca
(c) Antennae
(d) Anal cerci
Show Answer & Explanation
Answer: (c) Antennae
Explanation:
1. The antennae are sensory organs that monitor the environment.
Teacher's Note:
1. The anal cerci also detect vibrations.
2. The ootheca is the egg case.
(a) 14
(b) 16
(c) 15
(d) 50
Show Answer & Explanation
Answer: (b) 16
Explanation:
1. The anal cerci of the cockroach are made of 16 segments.
Teacher's Note:
1. They are present in both sexes.
2. They are sensitive to vibrations.
(a) Occiput
(b) Gena
(c) Trochanter
(d) Frons
Show Answer & Explanation
Answer: (c) Trochanter
Explanation:
1. Occiput, gena and frons are parts of the head capsule, while the trochanter is a segment of the leg.
Teacher's Note:
1. The head is formed by six fused segments.
2. The trochanter is part of the leg.
(a) Labrum and mandibles
(b) Mandibles and labium
(c) Mandibles and first maxillae
(d) Mandibles and hypopharynx
Show Answer & Explanation
Answer: (c) Mandibles and first maxillae
Explanation:
1. The mandibles and the first maxillae lie on the sides of the pre-oral cavity.
Teacher's Note:
1. The labrum is on top and the labium below.
2. The hypopharynx lies in the centre.
(a) Five
(b) Six
(c) Nine
(d) Ten
Show Answer & Explanation
Answer: (b) Six
Explanation:
1. The head of the cockroach is formed by the fusion of six segments.
Teacher's Note:
1. It is triangular and held at right angles to the body.
2. It is hypognathous.
(a) Biological clock effect
(b) Light effect
(c) Both
(d) None of these
Show Answer & Explanation
Answer: (a) Biological clock effect
Explanation:
1. Cockroaches are nocturnal because of their biological clock (circadian rhythm), which keeps them active at night.
Teacher's Note:
1. This rhythm persists even in constant darkness.
2. It is not just the immediate effect of light.
(a) Tongue
(b) Maxilla
(c) Mandible
(d) Labrum
Show Answer & Explanation
Answer: (c) Mandible
Explanation:
1. The mandibles are hard, serrated jaws used to chew food.
Teacher's Note:
1. The maxillae handle the food.
2. The labrum is the upper lip.
(a) Labium
(b) Mandible
(c) Maxilla
(d) Labrum
Show Answer & Explanation
Answer: (d) Labrum
Explanation:
1. The labrum forms the upper lip.
Teacher's Note:
1. The labium is the lower lip.
2. The labrum covers the mouth from above.
(a) Second maxillae
(b) Maxillary palp
(c) Antennae
(d) Labial palp
Show Answer & Explanation
Answer: (b) Maxillary palp
Explanation:
1. The maxillary palps help to pick up food and pass it to the mouth parts.
Teacher's Note:
1. They also carry gustatory receptors.
2. The first maxillae manipulate food.
Multiple Choice Questions (MCQs) for NEET Biology Cockroach
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FAQs
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By solving our NEET Biology Cockroach MCQs Set 05, NEET students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Biology.
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