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Welcome to your NEET WEEKLY TEST BIOLOGY (26.07.2025)
IMPORTANT INSTRUCTIONS
1. The test is of 90 minutes duration and Test Booklet contains 45 questions. Each question carried 4 marks for each correct response, the candidate will get 4 marks. For each incorrect response, one mark will be deducted from the total scores.2. Use of Cell phone/Electronics gadgets/Calculator etc. are not allowed.
BIOLOGY
1) Glucose2) Ribose3) Fructose4) Galactose
2. Which of the following best describes the tertiary structure of a protein?1. Linear sequence of amino acids2. Repeated folding patterns such as α-helices and β-pleated sheets3. Three-dimensional shape formed by interactions between side chains4. Multiple polypeptide chains arranged in a single complexDeselect Answer
3. Which of the following is a characteristic feature of cellulose?
1) Branched-chain polymer2) Straight-chain polymer3) Composed of α-glucose units4) Soluble in water
4. In the Benedict’s test, the formation of a red precipitate indicates the presence of:1. Non-reducing sugars2. Reducing sugars3. Polysaccharides4. LipidsDeselect Answer
5. Which of the following is not a chemically modified sugar’?1. Glucosamine2. N-acetyl galactosamine3. Galacturonic acid4. Di hydroxy acetoneDeselect Answer
6. Which of the following statements is false1. In solutions of different pH, the structure of amino acid changes2. Protein is a homopolymer3. Non-essential amino acids are synthesized by animals4. Dietary proteins are source of essential amino acidDeselect Answer
7. Find out incorrect1. a polysaccharide is obtained from the roots of Dahlia.2. GLUT-4 protein enables glucose transport into3. Ribose sugar is present in RNA and ATP4. Sucrose is a dipeptide commonly known as AspartameDeselect Answer
1) haemoglobin2) histone3) globulin4) elastin
1) Arginine2) Lysine3) Cysteine 4) Alanine
1) GLUT I2) GLUT II3) GLUT III 4) GLUT IV
1) Alanine 2) Glutamic acid3) Valine 4) Tyrosine
1) >12000 Da 2) < 6000 Da 3) < 12000 Da.4) 600-3000 Da.
1) Carbon 2) Oxygen3) Silicon 4) Nitrogen
1) Cellulose 2) Codeine3) Morphine4) Both (2) and (3)
1) Amino acids 2) Sugars3) Antibiotics 4) Nucleotides
1) Starch2) Cellulose3) Glycogen4) Chitin
1) Carbon 2) Nitrogen3) Sulphur4) Phosphorus
1) 30 minutes 2) 45 minutes3) 20 minutes4) 59 minutes
1) leptotene2) zygotene3) pachytene 4) diakinesis
1) S phase 2) Prophase3) Interphase4) Metaphase
A B C D
(1) (ii) (iii) (iv) (v)(2) (i) (ii) (v) (iv)(3) (ii) (iii) (iv) (v)(4) (ii) (i) (iii) (iv)
1) 32 x 1062) 16 x 1063) 8 x 1064) 64 x 106
1) Leptotene 2) Zygotene3) Pachytene 4) Diplotene
1) 20 pg 2) 40 pg3) 60 pg 4) 80 pg
1) Telophase2) Cytokinesis3) Metaphase 4) Anaphase
1) C-karyokinesis 2) D- G1 phase3) A- cytokinesis 4) B- Anaphase
1) Prophase2) Metaphase3) Anaphase 4) Telophase
1) 1200 2) 2003) 300 4) 150
ZOOLOGY
47. Assertion (A): All vertebrates are chordates but all chordates are not vertebrates. Reason (R): Notochord is replaced by vertebral column in the adult vertebrates1. Assertion is not correct but Reason is correct2. Both Assertion and Reason are correct and Reason is the correct explanation of Assertion3. Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion4. Assertion is correct but Reason is not correctDeselect Answer
48. The excretory structures of flatworms/Taenia are1. Malpighian tubules2. Protonephridia3. Green glands4. Flame cellsDeselect Answer
49. Match the following and select the correct option1. (a)-(iii) (b)-(iv) (c)-(i) (d)-(ii)2. (a)-(iii) (b)-(iv) (c)-(ii) (d)-(i)3. (a)-(iv) (b)-(i) (c)-(ii) (d)-(iii)4. (a)-(iv) (b)-(iii) (c)-(i) (d)-(ii)Deselect Answer
50. Body cavity not lined by mesoderm and directly connected to archenteron occurs in
1) Platyhelminthes 2)Annelida3) Aschelminthes4) Echinoderms
51. Notochord arises from
1) Endoderm 2) Mesoderm3) Ectoderm 4) None of these
52. Which of the following group of animals have a unique property of possessing mammary glands, hair and pinnae?1. Elephas, Corvus, Neophron2. Chelone, Panthera, Vipera3. Balaenoptera, Pterophus, Delphinus4. Betta, Hyla, CanisDeselect Answer
53. Water vascular system is a characteristic feature of which phylum?1. Porifera2. Ctenophora3. Echinodermata4. ChordataDeselect Answer
54. Consider the following features and select the correct option of animal groups which possess all the above characteristics.A. Bilateral symmetryB. Organ-system level of organizationC. Proper circulatory and respiratory system1. Mollusca, Hemichordata, Echinodermata2. Annelida, Aschelminthes, Chordata3. Coelenterata, Ctenophora, Porifera4. Arthropoda, Cnidaria, PlatyhelminthesDeselect Answer
55. Hooks and suckers are the characteristic feature of which phylum?1. Platyhelminthes2. Aschelminthes3. Both 1 and 24. Neither 1 nor 2Deselect Answer
56. The excretory structure of arthropods is1. Malpighian tubules2. Green glands3. Protonephridia4. Flame cellsDeselect Answer
57. Match the following1. A-(iv), B-(ii), C-(i), D-(iii)2. A-(i), B-(iii), C-(ii), D-(iv)3. A-(iii), B-(ii), C-(i), D-(iv)4. A-(ii), B-(i), C-(iii), D-(iv)Deselect Answer
58. Read the following statements with respect to Cyclostomes and select the incorrect ones.A. They lack scales and paired finsB. They have circular mouth with jawsC. They bear 6-15 pairs of gillsD. They migrate to deep sea for spawning
1) A and D only 2) A and B only3) B and C only 4) B and D only
59. Pinctada are characterized by1. Presence of notochord in early stage of life2. Presence of operculum3. Presence of visceral hump4. BioluminescenceDeselect Answer
60. Superclass Tetrapoda is further classified into how many classes
1) 2 2) 33) 44) 5
61. Which of the following is a unique feature of mammals?1. Four chambered heart2. Presence of diaphragm3. Homeothermy4. Rib-cageDeselect Answer
62. In which phylum the body can be divided into two identical left and right halves in only one plane?
1) Coelenterata 2) Ctenophora3) Porifera 4) Annelida
63. Which of the following cells in sponges help in trapping food?
1) Pinacocytes 2) Porocytes3) Choanocytes4) Ostia
64. Female Ascaris can be differentiated from male by1. Presence of female gonapophysis2. Presence of setae3. Shorter length4. Longer lengthDeselect Answer
65. Which of the following does not belong to phylum Echinodermata?1. Sea lily (Antedon)2. Sea hare (Aplysia)3. Sea urchin (Echinus)4. Sea cucumber (Cucumaria)Deselect Answer
66. Choose the incorrect vertebrate character1. Ventral muscular heart2. Kidneys for excretion and osmoregulation3. Paired appendages which may be fins or limbs4. None of the aboveDeselect Answer
67. Which of the following group does not represent a class?
1) Amphibia 2) Cyclostomata3) Osteichthyes 4) Pisces
68. Assertion: Cyclostomes are marine but migrate for spawning to fresh water. Reason: Larvae of cyclostome is metamorphosed in fresh water.1. Both Assertion and Reason are correct and Reason is the correct explanation of Assertion2. Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion3. Assertion is correct but Reason is not correct4. Assertion is not correct but Reason is correctDeselect Answer
69. Which of the following are characteristics of morphology of frog?I. Exoskeleton and tympanumII. Immovable lower eyelid and vocal sacIII. Nictitating membrane and protruding eyeIV. Pair of hind legs and vascularised skin
Options:
1) I, II and III 2) II and III only3) III and IV only 4) I, III and IV
70. Pulmonary respiration occurs by A while cutaneous respiration occurs through B.1. A- Lungs, B- Mouth2. A- Skin, B- Mouth3. A- Skin, B- Lungs4. A- Lungs, B- SkinDeselect Answer
71. Select the correct statements.I. In frog, RBC are nucleated, do not contain haemoglobinII. Lymph do not contain RBCIII. Sinus venosus receives blood through vena cavaIV. Heart is covered by pericardium
1) I, II, IV2) II, III, IV3) I, III, IV4) II and IV only
72. Which of the following receives bile from gall bladder and pancreatic juice from pancreas?
1) Stomach2) Ileum3) Rectum 4) Duodenum
73. Which of the following shows sexual dimorphism in frog?1. Slender body and darker color2. Tympanum and dermal plicae3. Dermal plicae and vocal sac4. Copulatory pad and nictitating membraneDeselect Answer
74. Prominent endocrine glands found in frog areI. Gonads and adrenalsII. Hypothalamus and pituitaryIII. Pineal body and thyroid
1) I and II2) II and III3) I and III 4) I, II, III
75. Assertion : Final digestion and absorption take place in the small intestine. Reason: The intestine of frog possesses villi and microvilli1. Both A and R are correct and R is the correct explanation of A2. Both A and R are correct but R is not the correct explanation of A3. A is correct but R is not correct4. A is not correct but R is correctDeselect Answer
76. Which of the following is responsible for control and coordination of involuntary activities of visceral organs?
1) CNS2) PNS3) ANS4) All of above
77. Regarding brain of frog, olfactory lobe, cerebral hemisphere, diencephalon are found in
1) Forebrain2) Midbrain3) Hindbrain4) None of above
78. Assertion (A): Frogs maintain ecological balance Reason (R): Frogs serve as important link of food chain and food web in ecosystem
Options:1. Both A and R are correct and R is the correct explanation of A2. Both A and R are correct but R is not the correct explanation of A3. A is correct but R is incorrect4. A is incorrect but R is correct
79. Statement I: Frogs are poikilothermic meaning they have constant body temperature. Statement II: Body of frog is divided into head, thorax and trunk1. Both statement I and II are correct2. Both statement I and II are incorrect3. Statement I is correct but statement II is incorrect4. Statement I is incorrect but statement II is correctDeselect Answer
80. The alimentary canal of frog is short because they are
1) Herbivores2) Omnivores3) Carnivores 4) None of above
81. Assertion: Frog can respire on land and in water. Reason: The vascular system of frog is under developed.1. Both A and R are correct and R is the correct explanation of A2. Both A and R are correct and R is the correct explanation of A3. A is correct but R is not correct4. A is not correct but R is correctDeselect Answer
82. Select the false statement from the following:1. Frogs take shelter in deep burrows to protect themselves from extreme heat known as aestivation2. Body is streamlined to help them move on land3. Frogs never drinks water but absorb it through skin4. Vocal sac act as resonators to intensify sound of croakingDeselect Answer
83. Match the following:1. Spinal nerves – a) 10-122. Vasa efferentia – b) 1 pair3. Oviduct – c)10 pairs4. Cranial nerves – d) 9 pairs
Options:1. 1-c, 2-d, 3-b, 4-a2. 1-d, 2-a, 3-b, 4-c3. 1-d, 2-c, 3-b, 4-c4. 1-a, 2-d, 3- c, 4-b
84. Frogs camouflage while on land but mimicry while in water. Select the correct option.1. True for camouflage but false for mimicry2. True for both3. False for both4. False for camouflage but true for mimicryDeselect Answer
85. In which organ do ventricle open on the ventral side of heart?1. Sinus venosus2. Truncus arteriosus3. Conus arteriosus4. Right auricleDeselect Answer
86. Regarding eye of frog, select the correct statement.1. Simple eyes, lower and upper eyelid, nictitating membrane2. Compound eyes, lower and upper eyelid, nictitating membrane3. Simple eyes, lower and upper eyelid, tympanic membrane4. Compound eyes, lower and upper eyelid, tympanic membraneDeselect Answer
87. Select the correct option for the given diagram:1. A-seminiferous tubule, B- Bidder’s canal, C-urinogenital duct, D- cloacal aperture2. A- vasa efferentia, B- adrenal gland, C- urinogenital duct, D- cloaca3. A- vasa efferentia, B- Bidder’s canal, C- cloaca, D- cloacal aperture4. A- seminiferous tubules, B-adrenal gland, C- vasa efferentia, D- cloacaDeselect Answer
88. In frog, ova passed from ovarian funnel to ovisac by
1) Ureter 2) Urinogenital duct3) Oviduct4) Ovarian follicles
89. Select the correct statement regarding frog.1. Egg is centrolecithal2. Nymphal stage is tadpole3. Mature female can lay 2000 to 3500 ova at a time4. Iodine is useful for metamorphosis of tadpole to adultDeselect Answer
90. During summer sleep, gaseous exchange takes place through which organ.
1) Skin2) Lungs3) Buccopharyngeal4) All of above