Medical Entrance Exams NEET practice set-7
1. Notochord in chordates is a flexible rod of tissue which lies :
(a) In the dorsal region but ventral to nerve cord
(b) In the ventral region but region but dorsal to nerve cord
(c) In the dorsal region and dorsal to nerve cord
(d) None of these
2. In which of the following set both the animals belong to the same phylum?
(a) Octopus and Leech
(b) Scoliodon and Whale
(c) Hagfish and Jellyfish
(d) None of these
3. The most characteristic feature of birds is :
(a) Four-chambered heart
(b) Present of wings
(c) Bipedal locomotion
(d) Presence of feathers
4. In which group, the notochord is limited to a certain part only :
(d) All of the above
5. One of the following is a representative of Ratitae :
(a) Hesperornis (b) Penguin
(c) Kiwi (d) Archeopteryx
6. Which of the following shows close affinity with Dinosaurs :
(a) Heloderma (b) Crocodile
(c) Turtle (d) Seymouria
7. Which of the following statement is correct?
(a) All chordates are vertebrates
(b) Few chordates are vertebrates
(c) All vertebrates are chordates
(d) All chordates are protochordates
8. The members of which chordate group can reproduce asexually by budding :
9. Which of the following is not a lungfish?
(a) Neoceratodus (b) Acipenser
(c) Lepidosiren (d) Protopterus
10. Which of the following is the smallest taxonomic group of animals having a cranium, vertebral column, ventral heart, pulmonary respiration and two pairs of limbs :
(a) Gnathostomata (b) Tetrapoda
(c) Vertebrata (d) Chordata
11. Identify one Pinnipedia from the following :
(a) Bear (b) Sealion
(c) Whale (d) Sea cow
12. The hippopotamus is called “Horse of the river, it :
(a) Belongs to Perissodactyla
(b) Has 4 chambered stomach
(c) Is odd-toed hoofed animal
(d) All of the above correct
13. Petromyzon is commonly called as :
(a) Has fish (b) Blindworm
(c) Lamprey (d) Acorn Worm
14. The Flying fish, Exocoetus, can glide in the air with the help of modified :
(a) Air bladder (b) Pectoraffim
(c) Tail Fin (d) Pelvic fin
15. Amphibians are not found in :
(a) Ponds (b) Lakes
(c) Rivers (d) Sea
16. The larva of Petromyzon is known as :
(a) Axolotl (b) Tornaria
(c) lamprey (d) None of the above
17. Which one of the following is a Metatherian :
(a) Tachyglossus (b) Ornithorhynchus
(c) Macropus (d) All of the above
18. Birds differ from bats in the absence of :
(a) 4-chambered heart
19. Group Amniota does not include the members of :
(a) Amphibia (b) Pisces
(c) Cyclostomata (d) All of these
20. Heterocercal tail and placoid scales are found in :
(a) Labeo (b) Catla
(c) Mystus (d) Scoliodon
21. Ampullae of Lorenzini in dogfish are :
(c) Balancing structures
(d) Auditory Structures
22. Jacobson’s organ is concerned with :
(a) Smell (b) Burrowing
(c) Touch (d) Vision
23. Which of the following teeth are lophodont in the elephant :
(a) Canine and premolar
(b) Premolar and incisor
(c) incisor and canine
(d) Premolar and molar
24. Name the only protochordate with all basic chordate structures :
(a) Amphioxus (b) Herdmania
(c) Lamprey (d) Balanoglossus
25. The following fish can move short distances on land because of the presence of gill chambers in mouth :
(a) Latimeria (b) Stingray
(c) Anabas (d) Exocoetus
26. The axolotl is the larva of :
(a) Ambystoma (b) Alytes
(c) Varanus (d) Uromastix
27. Two which of the following order does Frog belong :
(a) Urodela (b) Anura
(c) Lagomorpha (d) Gymnophiona
28. Which one of the following pair is correctly matched :
(a) Sphenodon -New Zealand
(b) Ostrich – New Zealand
(c) Kiwi – Australia
(d) All of the above
29. Birds possess :
(a) Right Ovary
(b) Left aortic arch
(c) One Urinary bladder
(d) None of these
30. Elasmobranchii is the group that includes :
(a) Bony fishes
(c) Cartilaginous Fishes
(d) Lampreys and hagfishes
31. Which of the following is a chordate but not a vertebrate?
(a) Seahorse (b) Sea squirt
(c) Sea hare (d) Sea cow
32. Lungfishes belong to :
(a) Elasmobranchii (b) Teleostomi
(c) Dipnoi (d) Holocephali
33. Both bats and whales are classified as mammals because of both :
(a) Have 4- chambered heart
(b) Have Pinna
(c) Give birth to young ones
34. ‘Pigeon milk’ is secreted in the :
(a) Uropygial gland of pigeon
(b) Crop glands of female pigeon
(c) Crop glands of male and female pigeon
(d) Mammary glands of the pigeon
35. Formen of Panizza is associated with :
(a) Brain of Reptile (b) Kidney of Reptile
(c) Heart of Reptile (d) Skeleton of Amphibia
36. Limbless amphibians belong to the order :
(a) Gymnophiona (b) Urodela
(c) Anura (d) Caudata
37. The adult birds usually have single :
(a) Kidney (b) Lung
(c) Ovary (d) Urinary Bladder
38. The mammals which use echolocation device for hearing include Dolphins and the members of order :
39. Double-headed ribs are present in :
(a) Reptiles (b) Mammals
(c) Birds (d) both 2 and 3
40. The study of birds migration is known as :
(a) Ornithology (b) Oology
(c) Phenology (d) Nidology
In each of the following question, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. If the statements mark the correct answer as :
(a) If both assertion and reason are true and the reason is the correct explanation of assertion.
(b) If both assertion and reason are true but the reason is not the correct explanation of assertion.
(c) If the assertion is true but the reason is false.
(d) If both assertion and reason are false
(e) If assertion is false but reason is true
41. Assertion (A) : Hemoglobin is said to be a conjugated protein.
Reason (R) : If is composed of a protein called heme and a non-protein iron porphyrin complex called globin.
42. Assertion (A) : Serum cannot be a coagulated.
Reason (R) : Serum lacks the protein fibrinogen.
43. Assertion (A) : Blood can be coagulated by adding oxalate (Sodium or Potassium Oxalate) to it.
Reason (R) : Oxalate depresses the action of anticoagulant present in the blood.
44. Assertion (A) : Deficiency of proteins lead to poor healing of wounds.
Reason (R) : Plasma proteins immunoglobulins play a major role in the healing of wounds.
45. Assertion (A) : Intercalated discs are important regions of cardiac muscle cells.
Reason (R) : Intercalated discs function as boosters for muscle contraction waves.
46. Assertion (A) : Bones posses longitudinal canals called lacunae.
Reason (R) : Lacunae carry blood vessels and nerves to the bones.
47. Assertion (A) : In some herbivores, the large intestine is important for cellulose digestion.
Reason (R) : Large intestine secretes enzymes to digest cellulose in some herbivorous animals.
48. Assertion (A) : Presence of HCl in the stomach is necessary for the process of digestion.
Reason (R) : HCl kills and inhibits the growth of bacteria in the stomach.
49. Assertion (A) : Rennet tablets are used for coagulating the milk to curd.
Reason (R) : Rennet tablets contain a protease called rennin.
50. Assertion (A) : Carbohydrates are more suitable for the production of energy in the body than proteins and fats.
Reason (R) : Carbohydrates can be stored in the tissues as glycogen for use in the production of energy, whenever necessary.
51. Assertion (A) : Some cattle like a goat, sheep are called ruminants.
Reason (R) : A part of the ruminant stomach is called rumen.
52. Assertion (A) : Oxidation of nutrients releases bond energy.
Reason (R) : Oxidation of nutrients is done by using molecular oxygen.
53. Assertion (A) : Aerobic animals are not truly aerobic.
Reason (R) : They produce lactic acid anaerobically.
54. Assertion (A) : In mammals, the complex respiratory system has developed.
Reason (R) : Mammalian skin is impermeable to gases.
55. Assertion (A) : During inspiration, the pressure of air falls in the thorax.
Reason (R) : There is a rise in the volume of thorax during inspiration.
56. Assertion (A) : Symptoms of emphysema develops when a person living on plains ascends and stays on a mountain.
Reason (R) : Air pressure and partial pressure of oxygen fall with the rise in altitude.
57. Assertion (A) : Death ensues if waste products are not removed from the body.
Reason (R) : Excretory system removes the nitrogenous waste products from the body.
58. Assertion (A) : In vertebrates, the liver is also referred as an accessory excretory organ.
Reason (R) : Liver helps kidneys in the secretion of urine.
59. Assertion (A) : During micturition, urine is prevented from flowing back into the ureters.
Reason (R) : Urethral sphincters relax during micturition.
60. Assertion (A) : Hemodialysis can save and prolong the life of uremic patients.
Reason (R) : Waste products like urea can be removed from the blood by the process of hemodialysis.
61. Assertion (A) : Extracellular fluid serves as the sanitary drainage line’ of the body.
Reason (R) : Extracellular fluid collects excess water, CO2, nitrogenous and other metabolic waste products from all tissues.
62. Assertion (A) : If human urine is allowed to stand for some time, it smells strongly of ammonia.
Reason (R) : The Main constituent of human urine is ammonia.
63. Assertion (A) : Ball and – socket – joints are the most mobile joints.
Reason (R) : Synovial fluid is present here.
64. Assertion (A) : The contraction and relaxation of muscle fibre are controlled by nerve impulses.
Reason (R) : The threshold stimulus is the minimum stimulus required for the beginning of contraction.
65. Assertion (A) : Biceps is said to be flexor muscle in the elbow joint.
Reason (R) : Biceps contract during flexion at the elbow joint.
66. Assertion (A) : The open circulatory system is more efficient than the closed circulatory system.
Reason (R) : The blood flows far more rapidly in open circulatory system than in the closed one.