NCERT CLASS 11 | TOPIC : STRUCTURAL ORGANIZATION IN ANIMALS | PYOSQB | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : STRUCTURAL ORGANIZATION IN ANIMALS | PYOSQB | NEET BIOLOGY ONLINE TEST

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It contains 42 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : kalvisolai.net

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1 ➤ 1. Which of the following characteristics is incorrect with respect to cockroach? [NEET 2021]

(a) 10th abdominal segment in both sexes, bears a pair of anal cerci. (b) A ring of gastric caeca is present at the junction of midgut and hind gut. (c) Hypopharynx lies within the cavity enclosed by the mouth parts. (d) In females, 7th-9th sterna together form a genital pouch.

2 ➤ 2. Following are the statements about prostomium of earthworm. [NEET 2021]

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(a) It serves as a covering for mouth.

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(b) It helps to open cracks in the soil into which it can crawl.

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(c) It is one of the sensory structures.

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(d) It is the first body segment.

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(a) (b) and (c) are correct (b) (a), (b) and (c) are correct (c) (a), (b) and (d) are correct (d) (a), (b), (c) and (d) are correct

3 ➤ 3. Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules. [NEET 2021]

(a) Adhering junctions and Gap junctions, respectively. (b) Gap junctions and Adhering junctions, respectively. (c) Tight junctions and Gap junctions, respectively. (d) Adhering junctions and Tight junctions, respectively.

4 ➤ 4. Goblet cells of alimentary canal are modified from [NEET (Phase-I) 2020]

(a) Columnar epithelial cells. (b) Chondrocytes. (c) Compound epithelial cells. (d) Squamous epithelial cells.

5 ➤ 5. If the head of cockroach is removed, it may live for few days because [NEET (Phase-I) 2020]

(a) the cockroach does not have nervous system. (b) the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body. (c) the head holds a ⅓ rd of a nervous system while the rest is situated along the dorsal part of its body. (d) the supra-oesophageal ganglia of the cockroach are situated in ventral part of the abdomen.

6 ➤ 6. In cockroach, identify the parts of the foregut in correct sequence [NEET (Phase-II) 2020]

(a) Mouth → Oesophagus → Pharynx → Crop → Gizzard (b) Mouth → Crop → Pharynx → Oesophagus → Gizzard (c) Mouth → Gizzard → Crop → Pharynx → Oesophagus (d) Mouth → Pharynx → Oesophagus → Crop → Gizzard

7 ➤ 7. Match the following columns with reference to cockroach and select the correct option [NEET (Phase-II) 2020]

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(A) Grinding of - (i) Hepatic caecal the food particles

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(B) Secrete gastric - (ii) 10th segment juice

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(C) 10 pairs - (iii) Proventriculus

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(D) Anal cerci - (iv) Spiracles (v) Alary muscles

(a) (A)-(iii), (B)-(i), (C)-(iv), (D)-(ii) (b) (A)-(iv), (B)-(iii), (C)-(v), (D)-(ii) (c) (A)-(i), (B)-(iv), (C)-(iii), (D)-(ii) (d) (A)-(ii), (B)-(iii), (C)-(i), (D)-(iv)

8 ➤ 8. Select the incorrectly matched pair from following: [NEET (Phase-II) 2020]

(a) Chondrocytes - Smooth muscle cells (b) Neurons - Nerve cells (c) Fibroblast - Areolar tissue (d) Osteocytes - Bone cells

9 ➤ 9. The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in [NEET 2019]

(a) fallopian tubes and pancreatic duct. (b) eustachian and salivary duct. (c) bronchioles and fallopian tubes. (d) bile duct and bronchioles.

10 ➤ 10. Sequence of organs in the alimentary canal of cockroach starting from mouth [NEET 2019]

(a) Pharynx → Oesophagus → Gizzard → Crop → Ileum → Colon → Rectum (b) Pharynx → Oesophagus → Gizzard → Ileum → Crop → Colon → Rectum (c) Pharynx → Oesophagus → Ileum → Crop → Gizzard → Colon → Rectum (d) Pharynx → Oesophagus → Crop → Gizzard → Ileum → Colon → Rectum

11 ➤ 11. Smooth muscles are: [NEET (Phase-II) 2016]

(a) involuntary, fusiform, non-striated (b) voluntary, multinucleate, cylindrical (c) involuntary, cylindrical, striated (d) voluntary, spindle-shaped, uninucleate

12 ➤ 12. Which type of tissue is correctly matched with its location? [NEET (Phase-I) 2016] Options Tissue Location

(a) Areolar tissue Tendons (b) Transitional epithelium Tip of nose (c) Cuboidal epithelium Lining of stomach (d) Smooth muscle Wall of intestine

13 ➤ 13. The function of the gap junction is to: [AIPMT 2015]

(a) Perform cementing to keep neighbouring cells together (b) Facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules (c) Separate two cells from each other (d) Stop substance from leaking across a tissue

14 ➤ 14. Choose the correctly matched pair. [AIPMT 2014]

(a) Tendon – specialized connective tissue (b) Adipose tissue – dense connective tissue (c) Areolar tissue – loose connective tissue (d) Cartilage – loose connective tissue

15 ➤ 15. The supportive skeletal structures in the human external ears and in the nose tip are examples of: [CBSE PMT (Mains) 2012]

(a) Ligaments (b) Areolar tissue (c) Bone (d) Cartilage

16 ➤ 16. The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its correct location and function? [AIPMT MAINS 2012]

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(a) [Tissue] (C) Collagen fibres [Location] Cartilage [Function] Attach skeletal muscles to bones (b) [Tissue] (D) Smooth muscle tissue [Location] Heart [Function] Heart contraction (c) [Tissue] (A) Columnar epithelium [Location] Nephron [Function] Secretion and absorption (d) [Tissue] (B) Glandular epithelium [Location] Intestine [Function] Secretion

17 ➤ 17. The ciliated columnar epithelial cells in humans are known to occur in: [CBSE PMT (Prelims) 2011]

(a) Eustachian tube and stomach lining (b) Bronchioles and fallopian tube (c) Bile duct and oesophagus (d) Fallopian tube and urethra

18 ➤ 18. The kind of epithelium which forms the inner walls of blood vessels is: [CBSE PMT (Mains) 2010]

(a) Cuboidal epithelium (b) Columnar epithelium (c) Ciliated epithelium (d) Squamous epithelium

19 ➤ 19. The cell junctions called tight, adhering and gap junctions are found in: [CBSE PMT (Prelims) 2009]

(a) Connective tissue (b) Epithelial tissue (c) Neural tissue (d) Muscular tissue

20 ➤ 20. Which one of the following pairs of structure distinguishes a nerve cell from other types of cell? [CBSE PMT (Prelims) 2007]

(a) Flagellum and medullary sheath (b) Nucleus and mitochondria (c) Perikaryon and dendrites (d) Vacuoles and fibres

21 ➤ 21. Areolar connective tissue joins: [CBSE PMT (Prelims) 2006]

(a) Fat body with muscles (b) Integument with muscles (c) Bones with muscles (d) Bones with bones

22 ➤ 22. Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following which of the cells are least likely to be replaced by new cells? [AIPMT (Prelims) 2005]

(a) Osteocytes (b) Malpighian layer of skin (c) Liver cells (d) Neurons

23 ➤ 1. Which of the following features is used to identity a male cockroach from a female cockroach? [NEET 2018]

(a) Forewings with darker tegmina (b) Presence of caudal styles (c) Presence of boat shaped sternum on the 9th abdominal of anal cerci (d) Presence of anal cerci

24 ➤ 2. Select the correct route for the passage of sperms in male frogs. [NEET 2017]

(a) Testes → Bidder's canal → Kidney → Vasa → efferentia → Urinogenital duct → Cloaca (b) Testes → Vasa efferentia → Kidney → Seminal Vesicles → Urinogenital duct → cloaca (c) Testes → Vasa efferentia → Bidder's canal → Ureter → Cloaca (d) Testes → Vasa efferentia → Kidney-Bidder's canal → Urinogenital duct → Cloaca

25 ➤ 3. In male cockroaches, sperms are stored in which part of the reproductive system? [NEET Phase I 2016]

(a) Seminal vesicles (b) Mushroom glands (c) Testes (d) Vas deferens

26 ➤ 4. Which one of the following features is not present in Periplaneta americana? [NEET Phase I 2016]

(a) Indeterminate and radial cleavage during embryonic development (b) Exoskeleton composed of N-acetylglucosamine (c) Metamerically segmented body (d) Schizocoelom as body cavity

27 ➤ 5. The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of: [Re-AIPMT 2015]

(a) Calcium carbonate (b) Ammonia (c) Potassium urate (d) Urea

28 ➤ 6. The terga, sterna and pleura of cockroach body are joined by: [AIPMT 2015]

(a) Cartilage (b) Cementing glue (c) Muscular Tissue (d) Arthrodial membrane

29 ➤ 7. What external changes are visible after the last moult of a cockroach nymph? [NEET 2013]

(a) Mandibles become harder (b) Anal cerci develops (c) Both fore and hind wings develop (d) Labium develops

30 ➤ 8. Select the correct statement from the ones given below with respect to Periplaneta americana. [CBSE PMT (Prelims) 2012]

(a) Nervous system located dorsally consists of segmentally arranged ganglia joined by a pair of longitudinal connectives (b) Males bear a pair of short thread like anal styles (c) There are 16 very long malpighian tubules present at the junctions of midgut and hindgut (d) Grinding of food is carried out only by the mouth parts

31 ➤ 9. Pheretima and its close relatives derive nourishment from: [AIPMT (Prelims) 2012]

(a) Small pieces of fresh fallen leaves of maize, etc (b) Sugarcane roots (c) Decaying fallen leaves and soil organic matter (d) Oil insects

32 ➤ 10. Compared to those of humans, the erythrocytes in frog are: [AIPMT (Prelims) 2012]

(a) Nucleated and without haemoglobin (b) Without nucleus but with haemoglobin (c) Nucleated and with haemoglobin (d) Very much smaller and fewer

33 ➤ 11. Which one of the following characteristics is common both in humans and adult frogs? [AIPMT (Mains) 2012]

(a) Ureotelic mode of excretion (b) Four-chambered heart (c) Internal fertilisation (d) Nucleated RBCs.

34 ➤ 12. Which one of the following structures in Pheretima is correctly matched with its function? [CBSE PMT (Prelims) 2011]

(a) Clitellum – secretes cocoon (b) Gizzard – absorbs digested food (c) Setae – defense against predators (d) Typhlosole – storage of extra nutrients

35 ➤ 13. Frogs differ from humans in possessing: [CBSE PMT (Mains) 2011]

(a) Paired cerebral hemispheres (b) Hepatic portal system (c) Nucleated RBCs (d) Thyroid

36 ➤ 14. Which of the following happens in the common cockroach? [CBSE PMT (Prelims) 2011]

(a) Malpighian tubules are excretory organs projecting out from the colon (b) Oxygen is transported by haemoglobin in blood (c) Nitrogenous excretory product is urea (d) The food is grounded by mandibles and gizzard

37 ➤ 15. One very special feature in the earthworm (Pheretima) is that: [CBSE PMT (Prelims) 2011]

(a) Fertilization of eggs occurs inside the body (b) The typhlosole greatly increases the effective absorption area of the digested food in the intestine (c) The S-shaped setae embedded in the integument are the defensive weapons used against the enemies (d) It has a long dorsal tubular heart

38 ➤ 16. Uric acid is the chief nitrogenous component of the excretory products of :[AIPMT (Prelims) 2009]

(a) Earthworm (b) Cockroach (c) Frog (d) Man

39 ➤ 17. Which one of the following correctly describes the location of same body parts in the earthworm Pheretima? [AIPMT (Prelims) 2009]

(a) Four pairs of spermathecae in 4-7 segments (b) One pair of ovaries attached at inter segmental septum of 14th and 15th segments (c) Two pairs of testes in 10th and 11th segments (d) Two pairs of accessory glands in 16th-18th segements

40 ➤ 18. Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to: [AIPMT (Prelims) 2006]

(a) Setae (b) Coelomic fluid (c) Blood (d) Gut peristalis

41 ➤ 19. Earthworms are: [AIPMT (Prelims) 2006]

(a) Ureotelic when plenty of water is available (b) Uricotelic when plenty of water is available (c) Uricotelic under conditions of water scarcity (d) Ammonotelic when plenty of water is available

42 ➤ 20. Which one of the following has an open circulatory system? [AIPMT (Prelims) 2006]

(a) Pheretima (b) Periplaneta (c) Hirudinaria (d) Octopus

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