Morphology & Anatomy of Cockroach / Frog — NEET Biology MCQs with Solutions
Free NEET Biology Morphology & Anatomy of Cockroach / Frog MCQs with step-by-step solutions (6 questions). Part of Structural Organisation in Animals. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Morphology & Anatomy of Cockroach / Frog · easy · theory
The excretory organs of the cockroach are the:
A. Kidneys
B. Green glands
C. Nephridia
D. Malpighian tubules ✓ Correct
Solution: Malpighian tubules at the midgut–hindgut junction remove nitrogenous waste (uric acid) in cockroaches.
Q2 — Morphology & Anatomy of Cockroach / Frog · easy · theory
The body of a cockroach is divided into three regions:
A. Head, thorax and abdomen ✓ Correct
B. Thorax and abdomen only
C. Cephalothorax and abdomen
D. Head and trunk
Solution: The cockroach body has a head, thorax (bearing legs and wings) and a segmented abdomen.
Q3 — Morphology & Anatomy of Cockroach / Frog · medium · theory
The blood of a cockroach is colourless (haemolymph) and its circulatory system is:
A. Absent
B. Closed type
C. Double circulation
D. Open type ✓ Correct
Solution: Cockroaches have an open circulatory system; blood bathes tissues directly and lacks respiratory pigment (respiration is via tracheae).
Q4 — Morphology & Anatomy of Cockroach / Frog · medium · theory
Respiration in a cockroach occurs through a network of ______ opening to the exterior by ______:
A. Lungs; nostrils
B. Gills; opercula
C. Tracheae; spiracles ✓ Correct
D. Skin; pores
Solution: Air enters through 10 pairs of spiracles into tracheal tubes that deliver oxygen directly to tissues.
Q5 — Morphology & Anatomy of Cockroach / Frog · hard · theory
In the frog, the heart is ______ chambered and it exhibits ______ circulation:
A. Two; single
B. Three; single
C. Four; double
D. Three; double ✓ Correct
Solution: The frog has a three-chambered heart (two atria, one ventricle) with double circulation (some mixing of blood occurs).
Q6 — Morphology & Anatomy of Cockroach / Frog · hard · theory
The frog respires through its skin (cutaneous), buccal cavity and lungs. Cutaneous respiration is possible because the skin is:
A. Dry and keratinised
B. Impermeable
C. Moist and richly vascularised ✓ Correct
D. Covered with scales
Solution: The frog's moist, vascular skin allows gas exchange in water and on land; frogs are ectothermic amphibians.