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Seep. Pahuja. Lecture2 study
1.
2.
3.
4. 1. Frogs can protect itself from enemies by
A. Clawed toes
B. Spiny skin
C. Camouflage
D. Sharp teeth
5. 2. Stomach in frogs contains
A. Calciferous glands
B. Hepatic caecae
C. Collaterial glands
D. Oxyntic and gastric glands
6. 3. In frog, oxygen dissolved in water can be taken by
A. External nares
B. Spiracles
C. Buccal cavity
D. Skin
7. 4. In frog, heart is enclosed within two-layered sac called
A. Mesorchium
B. Pericardium
C. Pleura
D. Conus arteriosus
8. 5. A thin-walled, triangular chamber attached dorsally to heart of frog is
known as
A. Truncus arteriosus
B. Sinus venosus
C. Atrium
D. Ventricle
9. 6. In frog, deoxygenated blood is received by
A. Sinus venosus
B. Left atrium
C. Ventricle
D. Truncus arteriosus
10. 7. Renal portal vein carries blood to
A. Liver
B. Kidney
C. Heart directly
D. Brain
11. 8. In frog, RBCs are
A. Nucleated and biconcave
B. Enucleated and biconvex
C. Nucleated and biconvex
D. Non-nucleated and biconcave
12. 9. In frog, cloaca receives
A. Faecal matter
B. Gametes
C. Urine
D. All of these
13. 10. The part of frog's brain which is continuous with the spinal cord is
A. Cerebellum
B. Medulla oblongata
C. Mid-brain
D. Diencephalon
14. 11. Frog's eye are protected under water by the presence of
A. Retina
B. Upper eyelid
C. Nictitating membrane
D. Lower eyelid
15. 12. In frogs, testes are attached to kidneys by a double fold of
peritoneum known as
A. Pericardium
B. Mesorchium
C. Urinogenital duct
D. Vasa efferentia
16. 13. Which of the following statements is false?
A. The ovaries in frog are structurally and functionally connected with
kidneys
B. A mature female frog can lay 2500 to 3000, unfertilised ova at a time
C. In male frog there are 10-12 vasa efferentia arise from testes and enter
kidneys on their side and open into Bidder's canal
D. The eggs of frog are mesolecithal and telolecithal
17. 14. Following is the diagram of the male reproductive system of frog
select the correct set of names labelled A, B, C and D.
D
C
B
A
Vasa
efferentia
Bidder’s
canal
Ureter
Fat
bodies
Vasa
efferentia
Ureter
Bidder’s
canal
Fat
bodies
Vasa
efferentia
Ureter
Bidder’s
canal
Adernal
gland
Vasa
efferentia
Bidder’s
canal
Adernal
gland
Testes
A. .
B. .
C. .
D. .
18. 15. Which of the following is present in the skin of frog?
A. Serous gland
B. Mucus gland
C. Chromatophore cells
D. All of these
19. 16. Total number of vertebrae in frog is
A. 12
B. 10
C. 26
D. 33
20. 17. Frog is
A. Homoeothermic
B. Poikilothermic
C. Homeostatic
D. Warm-blooded
21. 18. Capacity of amphibians to change colour is called
A. Synchronous
B. Metachronous
C. Metachrosis
D. None of these
22. 19. Which is not true about frog?
A. Salivary glands are absent
B. Maxillary teeth are arranged along the margin of upper jaw and the
lower jaw is toothless
C. Muscular tongue is bilobed at tip and free from behind
D. Tadpole larva of frog has a short alimentary canal
23. 20. Bidder's canal in frog is present in
A. Testes
B. Kidney
C. Ovary
D. Brain
24. 21. During active period, maximum respiratory activity is through
A. Cutaneous respiration
B. Branchial respiration
C. Pulmonary respiration
D. Buccopharyngeal respiration
25. 22. Cerebrum in frog is the part of
A. Forebrain
B. Midbrain
C. Hindbrain
D. Rhombencephalon
26. 23. Number of cranial nerves and spinal nerves respectively in frog is
A. 10 and 20
B. 20 and 10
C. 10 and 10
D. 20 and 20
27. 24. Which of the following is true?
A. Frog has monocular vision
B. Frog has scale-less moist, slimy skin
C. Frog is myopic (short sighted) on land
D. All of these are true
28. 25. Spawning is termed as
A. Release of sperms in male
B. Release of ova by female
C. Other term for fertilization
D. None of these
29. 26. Respiration in tadpole of frog takes place by
A. Lungs
B. Gills
C. Buccal cavity
D. Skin
30. 27. Frog skull is
A. Noncondylic
B. Dicondylic
C. Monocondylic
D. None of these
31. 28. On removing the thyroid from tadpole
A. Metamorphosis will stop
B. It grows into a giant frog
C. It grows into a dwarf frog
D. Normal metamorphosis occurs
32. 29. A: Male frogs have copulatory/nuptial pad on the pollex of forelimbs.
R: It helps in amplexus.
A. Both Assertion & Reason are true and the reason is the correct
explanation of the assertion
B. Both Assertion & Reason are true but the reason is not the correct
explanation of the assertion
C. Assertion is true statement but Reason is false
D. If both Assertion and Reason are false statements
33. 30. A: Urine, faeces and gametes pass through a common passage in frog.
R: Frogs have cloaca in which alimentary canal and urinogenital ducts
open.
A. Both Assertion & Reason are true and the reason is the correct
explanation of the assertion
B. Both Assertion & Reason are true but the reason is not the correct
explanation of the assertion
C. Assertion is true statement but Reason is false
D. If both Assertion and Reason are false statements
34. 31. 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 Vesicle →
Urinogenital duct → Cloaca
C. Testes → Vasa efferentia → Bidder's canal → Ureter Cloaca
D. Testes → Vasa efferentia → Kidney → Bidder's canal →
Urinogenital duct → Cloaca
35. 32. Frog's heart when taken out of the body continues to beat for
sometime. Select the best option from the following statements
(a) Frog is a poikilotherm.
(b) Frog does not have any coronary circulation.
(c) Heart is "myogenic" in nature.
(d) Heart is autoexcitable. [NEET-2017]
A. Only (c)
B. Only (d)
C. (a) & (b)
D. (c) & (d)
36. 33. 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
37. 34. Which one of the following characteristics is common both in
humans and adult frogs? [AIPMT (Prelims)-2012]
A. Ureotelic mode of excretion
B. Four - chambered heart
C. Internal fertilization
D. Nucleated RBCs
38. 35. The kidney of an adult frog is
A. Metanephros
B. Opisthonephros
C. Pronephros
D. Mesonephros
39. 36. All the statements are correct about the external morphology of frog
but one. Which one is wrong?
A. Body is divisible into head and trunk. A neck and tail are absent
B. In the hind limbs five digits are present. They are webbed and help in
swimming
C. Male frogs have sound producing vocal sacs and a copulatory pad on
the first digit of the forelimbs
D. The forelimbs have four webbed digits
40. 37. In frogs, jelly around the eggs is deposited
A. In water after fertilization
B. In water during fertilisation
C. In oviduct
D. In the ovary
41. 38. The length of the alimentary canal in frog is
A. Long because frogs are herbivorous
B. Short because frogs are herbivorous
C. Long because frogs are carnivorous
D. Short because frogs are carnivorous
42. 39. On land the respiratory organs of frogs are
A. Buccal cavity
B. Skin
C. Lungs
D. All of these
43. 40. Which is the triangular structure associated with heart of frog
present on dorsal side and receives the blood through major veins
called vena cava?
A. Conus arteriosus
B. Sinus venosus
C. Right atrium
D. Ventricle
44. 41. Which of the following is mismatched w.r.t. Rana tigrina?
A. Hepatic portal system: Special venous connection between liver and
intestine
B. Renal portal system: Special venous connection between kidneys and
lower parts of the body
C. RBCs Oval and nucleated
D. Lymph Has proteins and RBCs
45. 42. Mark the false statement
A. Frog is a ureotelic animal
B. There are ten pairs of cranial nerves arising from brain
C. Forebrain includes cerebellum and medulla oblongata
D. Midbrain is characterised by a pair of optic lobes with optocoel
46. 43. Mark the statement which is not true regarding the reproductive
system of frog
A. Ovoid testes are adhered to the upper part of kidneys by a double fold
of peritoneum called mesorchium There are ten pairs of cranial nerves
arising from brain
B. Bidder's canal is a longitudinal canal present inside the kidneys carrying
sperms
C. Ureters of frog carry both sperms and urine
D. In female frogs the ovaries are both structurally and functionally
associated with kidneys
47. 44. Mark the false statement w.r.t. frog
A. A mature female frog can lay 2500 to 3000 ova at a time
B. Fertilisation is external and takes place on land
C. Thyroxine hormone is required for metamorphosis of tadpole to form the
adult
D. Tadpole larva has a long coiled spring like intestine
48. 45. Choose the most appropriate answer from the options given
Statement-I: Frog shows aestivation and hibernation.
Statement-II: The female frogs can be distinguished by the presence
of sound producing vocal sac which are absent in male frogs.
A. Both Statement-I and II are incorrect
B. Statement-I is correct but statement-II is incorrect
C. Statement-I is incorrect and Statement-II is correct
D. Both Statement-I and Statement-II are correct
49. 46. Choose the most appropriate answer from the options given
Statement-I: In female frog the ureters and oviduct open seperately
in the cloaca
Statement-II: On land frogs can respire by buccal cavity, skin and lungs.
A. Both Statement-I and II are incorrect
B. Statement-I is correct but statement-II is incorrect
C. Statement-I is incorrect and Statement-II is correct
D. Both Statement-I and Statement-II are correct
50. 47. Identify the correct set of statements:
(a) Frogs exhibit sexual dimorphism.
(b) Male frogs have copulatory pad on the first digit of the fore limbs.
(c) In male frogs the ureters and ejaculatory ducts open seperately in the cloaca.
(d) Frogs are ureotelic animals.
(e) External ear is absent in frogs and onlytympanum can be seen externally.
Choose the correct answer from options given below:
A. a and d only
B. a, b, d and e only
C. b, c, d and e only
D. b and c only
51. 48. Identify the correct set of statements:
(a) A mature female frog can lay 2500 to 3000 ova at a time.
(b) In frogs fertilization is internal.
(c) There are 20 pairs of cranial nerves in frog.
(d) In male frog number of vasa efferentia are 10-12.
(e) Endocrine glands are not found in frogs.
Choose the correct answer from options given below:
A. a and d only
B. b, c, d and e only
C. a, b, d and e only
D. b and c only
52. 49. Which of the following respiratory organs are used for respiration when
frogs live on land?
A. Buccal cavity
B. Buccal cavity and lungs
C. Skin and buccal cavity
D. Skin, buccal cavity and lungs
53. 50. Which of the following is incorrect with respect to circulatory system in
frog ?
A. Sinus venosus opens into right atrium
B. Conus arteriosus receives blood from ventricle
C. Conus arteriosus is present on the dorsal side of the heart
D. Left atrium receives oxygenated blood
54. 51. Which mosquito species are primarily responsible for Dengue fever?
A. Aedes albopictus
B. Anopheles gambiae
C. Aedes aegypti mosquito
D. Culiseta annulata
55. 52. The following are signs and symptoms manifested by a patient in
the febrile phase of Dengue Fever, except:
A. High fever
B. Rash
C. Pale skin
D. Severe GI bleeding
56. 53. Dengue fever incubation period ranges from:
A. 1-6 days
B. 3-8 days
C. 10-16 days
D. 16-26 days
57. 54. What are the 3 phases of Dengue fever?
A. Coalesing , trivial and serious
B. Staging , growing and spreading
C. Febrile , critical , recovery
D. Growing , critical , recovery
58. 55. Which of the following are the diagnostics methods for dengue?
A. ELISA
B. RT- PCR
C. Nucleic acid amplification tests (NAATs)
D. All of the above
59. 56. Which of the following are important for dengue prevention?
A. Using mosquito repellents
B. Keeping the doors and window close
C. Eliminate all breeding grounds
D. All of the above
60. 57. Chikungunya is cause by a:
A. Bacterium
B. Parasite
C. Virus
D. Protozoan
61. 58. The most common symptoms in chikungunya are:
A. Fever with cough
B. Fever and severe joint pains
C. Fever with severe stomach ache
D. Fever with severe diarrohea and vomitting
62. 59. Diagnosis of chikungunya is made based on:
A. Blood tests
B. Urine test
C. ECG
D. NAATs
63. 60. Chikungunya vaccine is administered every:
A. Three years
B. Five years
C. Ten years
D. None of the above
