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MCQ Questions Structural Organization in Animals Class 11 Chapter 7

NCERT Biology Class 11th Ch.7 Structural Organization in Animals MCQ Practice Questions for NEET | Class 11.

Prepare these important MCQ Questions of Biology Class 11 Structural Organization in Animals Chapter 7, Latest questions to expected to come in NEET | School Exams.

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1. Cockroach size ranges from:โ€‹

1. 34 - 53 cm

2. 0.6 โ€“ 7.6 cm

3. 0.6 โ€“ 7.6 inches

4. 34-53 inches


2. Neck of cockroach is extension of:โ€‹

1. Head

2. Prothorax

3. Abdomen

4. Metathorax


3. Head of cockroach is formed by fusion of:โ€‹

1. Six segments

2. Seven segments

3. Ten segments

4. Two segments


4. Which of the following feature can be used to distinguish male cockroach from female cockroach?โ€‹

1. Presence of anal cerci

2. Absence of anal cerci

3. Wings extend beyond the tip of abdomen

4. Presence of arthrodial membrane


5. Choose the correct statement.โ€‹

1. Hypopharynx is median inflexible lobe that act as tongue.

2. In females abdomen has 9 segments only.

3. Prothorax does not bears pair of walking legs.

4. Neck shows great mobility in all directions.


6. Correct description of Tegmina isโ€‹

1. Opaque, membranous, mesothoracic.

2. Transparent, membranous, metathoracic.

3.Opaque, Leathery, mesothoracic.

4. Transparent, Leathery, metathoracic.


7. How many of the following are part of female reproductive system in cockroach?โ€‹

Phallic gland, Collaterial gland, Spermathecal pores, Spermatheca, Vestibulum, Titillator.

a. 2

b. 4

c. 5

d. 3


8. Male bears thread like anal styles on which segment:โ€‹

1. 9th terga

2. 10th sterna

3. 10th terga

4. 9th sterna


9. Compound eyes are situated on:โ€‹

1. Ventral surface

2. Dorsal surface

3. Ventro-lateral surface

4. Terminal surface


10. Choose the correct statement with respect to cockroach.โ€‹

a. In females 7th tergite is boat shaped.

b. Blood from sinuses enter heart through ostia.

c. 10 spiracles are present on lateral surface of the body.

d. All of these.


11. Grinding and incising region are located on which mouth part of cockroach.โ€‹

1. Mandible

2. Maxillae

3. Hypopharynx

4. Labium


12. Choose the incorrect statement with respect to cockroach.โ€‹

1. Female cockroach has a pair of spermatheca.

2. On average female lays 9-10 ootheca.

3. Foregut is not lined by cuticle.

4. Hindgut is broader than midgut.


13. Correct description regarding salivary gland in cockroach.โ€‹

1. A pair present near gizzard.

2. A pair present near crop.

3. Two pairs present near crop.

4. Two pairs present near gizzard.


14. Choose the correct statement for digestive system of cockroach.โ€‹

1. At the junction of midgut and foregut 100-150 tubules of gastric caeca are present.

2. At the junction of midgut and hindgut 6-8 tubules of gastric caeca are present.

3. At the junction of midgut and hindgut 100-150 yellow filamentous tubules are present.

4. At the junction of midgut and hindgut 6-8 yellow filamentous tubules are present.


15. Blood flow in cockroach is:โ€‹

1. Always from anterior to posterior.

2. Always towards abdomen.

3. Sometimes posterior to anterior and sometimes anterior to posterior.

4. Always from posterior to anterior.


16. Malpighian tubules consist of:โ€‹

1. Glandular cells

2. Cuboidal cells

3. Ciliated cells

4. Both 1 and 3


17. In earthworm, which condition is seen to prevent self fertilizations?โ€‹

1. Protandrous

2. Progynous

3. Different position of reproductive structures

4. May be 1 or 2


18. How many spermathecae are found in earthworm?โ€‹

a. 4

b. 8

c. 2

d. 10


19. If head of cockroach is cut off, it will survive for as long as:โ€‹

1. One minute

2. One day

3. One week

4. One month


20. Choose the correct statement:โ€‹

A. Male gonapophysis is chitinous symmetrical structure.
B. Each ovary formed of 8 ovarioles

1. Both A and B are incorrect

2.Both A and B are correct

3. Only A is correct

4. Only B is correct


21. Correct statement with respect to frog.โ€‹

1.Out of sense organs eye and internal ears are cellular aggregation around nerve endings and rest are well organised structure.

2. Female lays 250-300 eggs at a time.

3. Midbrain is characterized by a pair of optic lobes.

4. The ventricle opens into sac like conus arteriosus on dorsal side of heart.


22. In earthworm on average each cocoon produces __ baby worms.โ€‹

a. 20

b. 2

c. 4

d. 9


23. Earthworm does not have:โ€‹

1. Eyes

2. Larval stages

3. Specialized breathing devices

4. All of these


24. Choose the correct with respect to morphology of earthworm.โ€‹

1. Setae are absent on first and last segment only.

2. Four spermathecal aperture are present on ventro lateral side.

3. Integumentary nephridia opens on body surface.

4. Peristomium acts as a wedge to force open crack in soil.


25. Choose the incorrect match for earthworm.โ€‹

1. Typholosole โ€“ begins from 26th segment

2. Gizzard โ€“ 5-7 segments

3. Blood glands โ€“ 4,5,6 segments

4. Buccal segment โ€“ 1st segment