Frog questions

Frog

1.The spiral valve is present in:

a.conus Arteriosus

b.bulbous arteriosus

c.in between right and left auricle

d.auricle and Ventricle 

Ans----> a


2. Which of the following has 3-chambered heart?

a.Frog

b.Snake

c.Crocodile

d.Lizard       

Ans----> a

3. The only acoelous vertebra in frog is the:

a.VII vertebra           

b.VIII vertebra

c.IX vertebra

d.X vertebra

Ans----> c

4. The phalangeal formula of frog’s foot is;

a. 0,2,2,3,3                                                         b.2,2,3,4,3

c.2,2,3,3,4                                                          d.2,3,3,3,3

Ans----> b

5. which of the following is present in frog but absent in mammals

a.stratum germinativum

b.Malpighian layer

c.Mucous gland

d.sebaceous gland

Ans----> c

6.what is the name of the muscle involved in the respiration of frog?

a.internal and external inter costal muscles

b.Petrohyal and sternohyal muscle

c.false and true vocal cords

d.lingual and orbital muscle

Ans----> b

7.  The eighth vertebra of frog is called:

a.Amphicoelous

b.a coleus

c.procoelus

d.opisthocoelus

Ans----> a

8. Venous system of frog differ from that of mammal in the presence of:

a.Hepatic portal system

b.Renal portal system

c.three venacava

d. Hepatic   vein

Ans----> b

9. Combining makes innominate vein in frog:

a.Lingual mandibular

b.internal jugular and sub-scapular

c.Brachial and musculo-cutaneous

d.hepatic portal and anterior abdominal

Ans----> b

10.Blood from back side of frog is collected by:

a.LLiac

b.dorsolumbar

c.femoral

d.sciatic

Ans----> b

11. Exoskeleton is absent in

a. Scoliodon                                            b. Frog

c. Rabbit                                                   d. Fowl

Ans----> b

12. Stratum corneum of frog is 

a.living, nucleated, flat

b.living, non-nucleated, flat, dry

c.Dead, non-nucleated, flat, dry

d.Dry, nucleated, dead, flat

Ans----> c

13. The surface for tongue attachment in frog is

a.Palatine bone

b.Quardratojugal

c.Hyoid

d.Pterygoid

Ans----> c

14. Sinus-venosus in frog is formed by the union of

a.Two precaval and one postcaval

b.one precaval and one postcaval

c.one precaval and one aorta

d.two aorta

Ans----> a

15. in frog, inspiration is the effect of:

a.Contraction of stern hyoid muscle

b.Relaxation of pterohyoid muscle

c.Enlarging of entire body

d.Enlarging of the lungs only

Ans----> a

16. Anterior abdominal vein in Rana tigrina is formed by joining the

a.two sciatic veins

b.two pelvic veins

c.pelvic and sciatic veins

d.renal portal and femoral veins

Ans----> b

17. Vasa efferentia in frog’s testis open into the:

a.transverse collecting tubules

b.urino-genital duct

c.bidder’s canal

d.seminal vesicle

Ans----> c

18. chordae tendinae in frog is found in

a.ventricles of heart

b.ventricles of brain

c.right auricle

d.sinus venous

Ans----> a

19.During hibernation, frog respire by the help of :

a.external gills and lungs

b.moist skin

c.gills and bucco-pharyngeal cavity

d.external gills

Ans----> b

20. Major function of bile in case of frog is :

a.emulsification of fats for digestion

b.regulate the process of digestion

c.digest fat by enzymatic activity

d.remove waste products

Ans----> a

21. Rectum in frog opens into:

a.urinary bladder

b.cloaca

c.anus

d.bidder’s canal

Ans----> b

22.bidder’s canal in frog is found in relation to:

a.kidney                                                            

b.testis

c.ovary

d.liver

Ans----> b

23. the third eye possessed by remote ancestors of frog is marked by:

a.nictitating membrane

b.brow spot

c.vestigial organ

d.plica semilunaris

Ans----> b

24. in frog, vasa efferentia opens into:

a.urinogenital duct

b.epididymis

c.uriniferous tubule

d.bidder’s canal

Ans----> d

25.Bidder’s canal of frog is present in:

a.liver

b.kidney

c.testes

d.urinary bladder

Ans----> b

26. in frog, oviduct is the modification of:

a.wolffian duct

b.bidder’s canal

 c.metanephric duct

d.Mullerian duct

Ans----> d

27. Harderian gland are found in:

a.Rabbit

b.Frog

c.Man

d.Earthworm

Ans----> b

28. metamorphosis occurs in;

a.Frog

b.Rabbit

c.Man

d.Snake

Ans----> a

29. Mammalian brains differs from frog brain in having:

a.Olfactory lobe

b.Corpous collosum

c.Cerebellum

d.Hypothalamus

Ans----> b

30. Astragalus and calcaneum are found in:

a.Forelimb of frog

b.Hindlimb of frog

c.Wing of bird

d.Skull of rabbit

Ans----> b

31. which of these are never present in frog ovary?

a.Oogonia

b.Corpus luteum

c.Ovarian follicles

d.Germinal epithelium

Ans----> b

32. the development of frog is

a.Direct

b.Indirect

c.Parthenogenetic

d.None of these

Ans----> b

33. in frog the ureter is a urinogenital duct;

a.Male

b.Female

c.Male and female

d.Male or female

Ans----> a

34. Bidder’s canal is meant for the passage of:

a.Ova

b.Urine

c.Sperms

d.All of these

Ans----> c

35. which of the following is absent in frog /

 a.External ear

b.Middle ear

c.Internal ear

d.None of these

Ans----> a

36. number of spinal nerve in frog is

a.10

b.10 pair

c.12

d.12 pairs

Ans----> b

37.chief nitrogenous waste product present in the urine of frog is

a.Urea

b.Uric acid

c.Allantoin

d.Ammonia

Ans----> a

38.the urinary bladder of frog opens into:

a.Ureter

b.Uterus

c.Urethra

d.Cloaca

Ans----> c

39. main excretory organ in frog Is

a.Skin

b.Lungs

c.Kidney

d.Malpighian tubules

Ans----> c

40. Pylangium in frog is found in:

a.Atrium

b.Ventricle

c.Sinus venosus

d.Conus arteriosus

Ans----> d

41. chordae tendinae in heart of frog is found in the wall of:

a.Ventricle

b.Left auricle

c.Right auricle

d.Sinus venosus

Ans----> a

42. in RBC of frog are

a.Oval and nucleated

b.Circular and nucleated

c.Oval and non-nucleated

d.Circular and non-nucleated

Ans----> a

43.contraction of sternohyal muscle during breathing in frog:

a.Closes glottis

b.Opens the nostrils

c.Raises floor of oral cavity

d.Lower floor of oral cavity

Ans----> d

44. respiratory pigment in blood of frog is

a.Myoglobin

b.Cytochrome

c.Hemoglobin

d.Haemocyanin

Ans----> c

45.which of the following structure is not concerned with breathing in frog?

a.Skin

b.Lungs

c.Diaphragm

d.Buccal cavity

Ans----> c

46.in frog, digestion of fats mainly occurs mostly in

a.Rectum

b.Stomach

c.Duodenum

d.Small intestine

Ans----> d

47.which of the following part is not a part of small intestine in frog?

a.Ileum

b.Jejunum

c.Duodenum

d.None of these

Ans----> b

48. stomach of frog do not have

a.Fundic part

b.Cardiac part

c.Pyloric part

d.All of these

Ans----> a

49.the structure present in human but absent in frog is

a.Pancreas

b.Thyroid gland

c.Adrenal gland

d.Salivary gland

Ans----> d

50. in frog, surface of attachment of tongue is:

a.Palatine

b.Sphenoid

c.Pterygoid

d.Hyoid apparatus

Ans----> d

51. which of the following is mainly used for capturing the prey of frog?

a.Lips

b.Teeth

c.Tongue

d.Head

Ans----> c

52. when a frog is transferred from 20C TO 30C its body temperature is:

a.Falls to 15 C

b.Rises to 30C

c.Falls to 12 C

d.Remains unchanged

Ans----> b

53.which of the following is longest in frog?

a.Large intestine

b.Small intestine

c.Oesophagus

d.Stomach

Ans----> b

54.pulmonary respiration means respiration by:

a.Skin

b.Pharynx

c.Buccal cavity

d.Lungs

Ans----> d

55. Portal system carries blood;

a.To capillaries

b.From capillaries

c.From capillaries to capillaries

d.From liver to intestine

Ans----> c

56. the urostyle to frog is supposed to be made of smaller bone urostyle is:

a.9th vertebra

b.8th vertebra

c.10th vertebra

d.Sacral vertebra

Ans----> c

57.the tadpole of frog feed upon:

a.Insects

b.Aquatic plants

c.Floating organism

d.Fishes

Ans----> b

58. in frog which of the following is common in digestion and respiration;

a.Pharynx

b.Larynx

c.Oesophagus

d.Fishes

Ans----> a

59. Malpighian body comprises of:

a.Glomerulus

b.Bowman’s capsule

c.Glomerulus and nephron

d.Glomerulus and Bowman’s capsule

Ans----> d

60. anterior abdominal vein in frog is formed by pelvic which is:

a.Ventral femoral

b.Dorsal femoral

c.Ventral sciatic

d.Dorsal sciatic

Ans----> a

61. ilium of the pelvic girdle in frog articulates with transverse process

a.7th vertebra

b.8th vertebra

c.9th vertebra

d.Urostyle

Ans----> c

62.liver of frog consist of;

a.Single lobe

b.Two lobe

c.Three lobes

d.Four lobe

Ans----> c

63.in frog the blood flows from

a.Venacava

b.Sinus venosus

c.Pulmonary artery

d.All

Ans----> b

64.dentition in frog is

a.Homodont

b.Heterodont

c.Thecodont

d.Biodont

Ans----> a

65. the hind brain of frog consist of

a.Optic lobe

b.Medulla oblongata and cerebellum

c.Optic lobes and medulla oblongata

d.Diencephalon and medulla oblongata

Note; pons is absent in frog

Ans----> b

66.cavity appears during embryogenesis of frog is;

a.Blastocoel

b.Archenteron

c.coelom

d.alimentary

Ans----> b

67. which is not involved in respiration of frog?

a.diaphragm

b.lungs

c.skin

d.buccal cavity

Ans----> a

68. how many teeth are found in the lower jaw of frog?

a.No

b.2

c.3

d.4

Ans----> a

Note; lower jaw of frog is edentulous i.e. without teeth

69.tadpole of frog is

a.Herbivorous

b.Carnivorous

c.Insectivorous

d.Omnivorous

Ans----> a

70. brachial and musculo-cutaneous veins in frog unite to form

a.Innominate vein

b.External jugular

c.Subclavian vein

d.Post caval vein

Ans----> c

71. Septo-maxillary bones are present in the skull of;

a.Rabbit

b.Man

c.Rat

d.Frog

Ans----> d

72. yolk plug is seen in;

a.Blastula

b.Gastrula

c.Morula

d.Cleavage

Ans----> b

73. CNS develops at;

a.Blastulation

b.Gastrulation

 c.Morula

d.Cleavage

Ans----> c

74. 100 primary oocyte form;

a.100 ova

b.200 ova

c.4oo ova

d.50 ova

Ans----> a

Some shorts tips;

Egg of frog; Telolecithal

Paracoel is found in; cerebrum

The blood cell in frog, which is found in maximum number and acts as scavenger is; Neutrophil

Glottis is controlled by the muscle of arytenoid cartilage

Skin of frog doesn’t possess; scales

In frog the protein digestion is completed in; lleum

Bifid and sticky tongue is present in frog

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