Chapter Exam

Chapter 7 ZOOLOGY : Periplaneta americana — Online MCQ Test

Q: What is the scientific name of the common cockroach studied in the Andhra State Board syllabus?

Answer: B. Periplaneta americana — Periplaneta americana is the most common species of cockroach studied in biology curricula.

Q: How many segments is the head of a cockroach formed by?

Answer: C. Six — The head of the cockroach is formed by the fusion of six embryonic segments.

Q: The mouthparts of a cockroach are adapted for which type of feeding?

Answer: B. Biting and chewing — Cockroaches possess biting and chewing type mouthparts that include mandibles and maxillae.

Q: Identify the feature that differentiates a male cockroach from a female cockroach.

Answer: B. Presence of anal styles in males — Anal styles are slender, thread-like structures present only in males, which helps in sexual dimorphism.

ZOOLOGY · CLASS 11 INTER I YEAR · Andhra State Board

Practice Chapter 7 ZOOLOGY : Periplaneta americana with a free chapter-wise online MCQ test for Andhra State Board CLASS 11 INTER I YEAR ZOOLOGY. This chapter covers: This chapter covers external morphology anatomy digestive circulatory respiratory excretory nervous sensory and reproductive systems of the cockroach.. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 7 ZOOLOGY : Periplaneta americana — Important Questions & Answers (FAQ)

Frequently asked questions from Andhra State Board CLASS 11 INTER I YEAR ZOOLOGY — Chapter 7 ZOOLOGY : Periplaneta americana, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is the scientific name of the common cockroach studied in the Andhra State Board syllabus?

A. Periplaneta orientalis
B. Periplaneta americana ✓
C. Blatta germanica
D. Supella longipalpa

Answer: B. Periplaneta americana
Periplaneta americana is the most common species of cockroach studied in biology curricula.

How many segments is the head of a cockroach formed by?

A. Four
B. Five
C. Six ✓
D. Seven

Answer: C. Six
The head of the cockroach is formed by the fusion of six embryonic segments.

The mouthparts of a cockroach are adapted for which type of feeding?

A. Piercing and sucking
B. Biting and chewing ✓
C. Siphoning
D. Sponging

Answer: B. Biting and chewing
Cockroaches possess biting and chewing type mouthparts that include mandibles and maxillae.

If the supra-oesophageal ganglion is removed in a cockroach, what will happen?

A. The cockroach will die immediately
B. The cockroach will lose the ability to move
C. The cockroach will lose control over walking and sensory integration ✓
D. The cockroach will stop eating completely

Answer: C. The cockroach will lose control over walking and sensory integration
The supra-oesophageal ganglion acts as the 'brain' of the cockroach, coordinating sensory input and locomotor activity.

Identify the feature that differentiates a male cockroach from a female cockroach.

A. Presence of wings
B. Presence of anal styles in males ✓
C. Presence of Malpighian tubules
D. Presence of compound eyes

Answer: B. Presence of anal styles in males
Anal styles are slender, thread-like structures present only in males, which helps in sexual dimorphism.

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