Selected Qs - Structural Organisation in Animals - NCERT Exemplar Converted to MCQs

1. The correct sequence of increasing complexity in animal organization is

1.	Cellular → Tissue → Organ → Organ system
2.	Tissue → Cellular → Organ → Organ system
3.	Organ → Tissue → Cellular → Organ system
4.	Organ system → Organ → Tissue → Cellular

2. The prominent dark band or clitellum in earthworms covers which segments?
1. 12-13
2. 14-16
3. 17-19
4. 20-22

3. The vocal sacs used for producing sound in frogs are present in:
1. Both males and females
2. Males only
3. Females only
4. Neither males nor females

4. The process by which a tadpole develops into an adult frog is called:
1. Metamorphosis
2. Molting
3. Regeneration
4. Differentiation

5. Which of these is NOT a characteristic feature of an adult male frog?

1.	Vocal sacs
2.	Copulatory pad on first digit
3.	Oviducts
4.	Dark colored skin

6. Which mouthpart of cockroach functions similar to human tongue?
1. Mandibles
2. Labrum
3. Hypopharynx
4. Maxillae

7. The correct sequence of parts in frog's digestive system from mouth to anus is:

1.	Mouth → buccal cavity → oesophagus → stomach → intestine → rectum → cloaca
2.	Mouth → oesophagus → buccal cavity → stomach → intestine → cloaca → rectum
3.	Mouth → stomach → buccal cavity → oesophagus → intestine → rectum → cloaca
4.	Mouth → buccal cavity → stomach → oesophagus → intestine → rectum → cloaca

8. Which type of muscle fiber is non-striated and tapers at both ends?
1. Cardiac muscle
2. Skeletal muscle
3. Smooth muscle
4. Striated muscle

9. The special venous connection between liver and intestine in frogs is called:

1.	Renal portal system
2.	Hepatic portal system
3.	Pulmonary portal system
4.	Systemic portal system

10. How many times does a cockroach nymph molt before reaching adult form?
1. 5-7 times
2. 8-10 times
3. 13 times
4. 14-16 times

11. In frogs, cutaneous respiration differs from pulmonary respiration because:

1.	It occurs only on land
2.	It occurs through skin in water
3.	It occurs only during hibernation
4.	It occurs through lungs in water

12. What is the primary function of hepatic caeca in cockroaches?

1.	Storage of food
2.	Secretion of digestive enzymes
3.	Absorption of nutrients
4.	Filter blood

13. Which of the following best describes why frogs are beneficial to agriculture?

1.	They provide food for humans
2.	They control insect pests that damage crops
3.	They help in soil fertilization
4.	They assist in pollination

14. Why don't sponges have tissue-level organization despite being multicellular?

1.	They lack specialized cells
2.	Their cells can't communicate
3.	Their cells remain independent and can't form organized tissues
4.	They are too primitive to have tissues

15. In structural organization, which level comes between cell and organ?
1. System
2. Tissue
3. Organism
4. Molecule

16. What is the main function of stratified epithelium in skin?

1.	Secretion of hormones
2.	Protection from physical and chemical damage
3.	Absorption of nutrients
4.	Gas exchange

17. Which feature of neurons makes them excitable cells?

1.	Presence of dendrites
2.	Ability to conduct electrical impulses
3.	Presence of myelin sheath
4.	Production of neurotransmitters

18. Which characteristic of blood, bone and cartilage classifies them as connective tissues?

1.	They all contain living cells
2.	They all have extensive matrix between cells
3.	They all transport substances
4.	They all provide support

19. Which type of nephridia is NOT found in earthworms?
1. Septal nephridia
2. Integumentary nephridia
3. Pharyngeal nephridia
4. Renal nephridia

20. In cockroaches, grinding of food particles is performed by:
1. Mandibles
2. Gizzard
3. Crop
4. Pharynx

21. What is the main function of the nictitating membrane in frogs?

1.	To secrete tears
2.	To protect eyes while in water
3.	To help in night vision
4.	To keep eyes moist

22. Which adaptation helps frogs survive extreme weather conditions?

1.	Camouflage only
2.	Hibernation only
3.	Both aestivation and hibernation
4.	Neither aestivation nor hibernation

23. The tympanum in frogs is associated with:
1. Digestion
2. Respiration
3. Hearing
4. Vision

24. Which type of epithelial tissue is primarily involved in secretion and absorption?

1.	Stratified squamous epithelium
2.	Simple columnar epithelium
3.	Cuboidal epithelium
4.	Transitional epithelium

25. Gap junctions in animal tissues primarily function to:

1.	Provide mechanical strength
2.	Allow direct communication between adjacent cells
3.	Prevent tissue damage
4.	Store nutrients

26. The cardiac muscle tissue is special because it:

1.	Is voluntary in nature
2.	Is involuntary and branched
3.	Contains intercalated discs
4.	Both 2 and 3

27. Which of the following correctly describes the respiratory system of a frog?

1.	Only lungs are used for respiration both on land and in water
2.	Only skin is used for respiration both on land and in water
3.	Skin, buccal cavity and lungs are used on land; only skin in water
4.	Lungs and buccal cavity are used in water; only skin on land

28. The heart of a frog consists of:

1.	Two atria and one ventricle
2.	Two ventricles and one atrium
3.	Two atria and two ventricles
4.	Three atria and one ventricle

29. Which characteristic makes frogs poikilothermic?

1.	Their ability to change color
2.	Their body temperature varies with environment
3.	Their ability to hibernate
4.	Their moist skin surface

30. The excretory waste product in frogs is primarily:
1. Ammonia
2. Uric acid
3. Urea
4. Creatinine

31. In the male frog's reproductive system, the vasa efferentia:

1.	Connect testes directly to cloaca
2.	Connect testes to kidneys through Bidder's canal
3.	Transport sperm from kidneys to bladder
4.	Connect bladder to cloaca

32. The female frog can lay approximately:

1.	500-1000 eggs at a time
2.	1000-1500 eggs at a time
3.	2500-3000 eggs at a time
4.	4000-5000 eggs at a time

33. Which of these is NOT a function of frog's skin?
1. Protection
2. Respiration
3. Water absorption
4. Food digestion

34. The brain of a frog is divided into:

1.	Two parts - forebrain and hindbrain
2.	Three parts - forebrain, midbrain and hindbrain
3.	Four parts - all separated by ventricles
4.	Single unified structure

35. During aestivation and hibernation, frogs:

1.	Stop breathing completely
2.	Use only lungs for respiration
3.	Use only skin for gaseous exchange
4.	Use both lungs and skin equally

36. The digestive system of frog is relatively short because:

1.	They are herbivorous
2.	They are carnivorous
3.	They digest food outside the body
4.	They have a high metabolic rate

37. Which structure in frog helps in capturing prey?
1. Unicellular tongue
2. Bilobed tongue
3. Trilobed tongue
4. Fixed tongue

38. Male frogs can be distinguished from females by:
1. Larger size
2. Webbed feet
3. Presence of vocal sacs
4. Number of digits

Fill OMR Sheet*

*If above link doesn't work, please go to test link from where you got the pdf and fill OMR from there

CLICK HERE to get FREE ACCESS for 2 days of ANY NEETprep course

Please be patient as the PDF generation may take up to a minute.

Fill OMR Sheet*