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4

The saliva contains an enzyme called

A. ptyalin

B. pepsin

C. trypsin

D. erepsin

Correct Answer :

A. ptyalin


Related Questions

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4

The juice from the leaves of ________ is used for the treatment of diarrhoea, cholera and dysentery.

A. Caeselpinea

B. Bryophyllum

C. Centella

D. None of the above

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4

Which among the following animals has the largest Intestine?

A. Cow

B. Lion

C. Monkey

D. Tiger

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4

What is the colour of the outer portion of the spinal cord?

A. gray

B. brown

C. white

D. yellow

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4

Which one of the endocrine glands disappears after puberty?

A. Thyroid

B. Thymus

C. Adrenals

D. Pituitary

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4

The phenomenon of summer sleep by animals is called

A. hibernation

B. aestivation

C. laziness

D. lethargy

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4

Nucleus was first discovered by

A. Porter

B. Robert Brown

C. Palade

D. None of these

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4

Which of the following contains the highest protein content per gram?

A. Groundnut

B. Soyabean

C. Apple

D. Wheat

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4

In plants water is carried upwards by

A. phloem

B. paranchyma

C. xylem

D. meristem

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4

Which one of the following is both an exocrine and an endocrine gland?

A. Gastric glands

B. Pancreas

C. Salivary glands

D. Liver

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4

The equilibrium and co-ordination is looked after by which part of the brain?

A. Cerebrum

B. Medulla oblongata

C. Cerebellum

D. Olfactory lobes

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4

Organisms which synthesise their own food are called

A. autotrophs

B. heterotrophs

C. saprotrophs

D. auxotrophs

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4

The part of the eye behind the lens is filled with

A. aqueous humor

B. vitreous humor

C. lymph

D. blood

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4

Who coined the term gene?

A. Mendel

B. Devries

C. Jacob and Monod

D. Johanson

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4

The nerve messages enter the cell through the

A. Dendrite

B. Axon

C. Cyton

D. Synapse

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4

The organ that produces antibodies in our body is

A. pancreas

B. salivary gland

C. liver

D. gonads

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4

Which among the following is a communicable disease?

A. Beri Beri

B. Diabetes

C. Leucoderma

D. Dysentery

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4

What are the symptoms of 'Pellagra'?

A. Colour blindness

B. Rickets

C. Patches of skin

D. Soft bones

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4

Malarial parasite is brought to human host by

A. male anopheles mosquito

B. female anopheles mosquito

C. male culex

D. female culex

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4

The medulla oblongata encloses the

A. optic lobe

B. optic capsule

C. second ventricle

D. fourth ventricle

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4

The theory of 'jumping genes' was propounded by

A. Gregor John Mendel

B. Thomas Hunt Morgan

C. Barbara McClintock

D. Watson and Crick

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4

Light compensation zone refers to

A. where light is available in plenty

B. where all light energy is used

C. where light is maximum

D. beyond which light does not penetrate

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4

Which among the following is the best source of proteins?

A. apples

B. butter

C. beans

D. fish

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4

The mode of nutrition in which particulate food is devoured is

A. holozoic

B. holophytic

C. saprophytic

D. parasitic

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4

Tetrodotoxin is a potent poison that

A. erodes blood vessels

B. blocks conduction of nerve impulses causing respiratory paralysis

C. produces damage to the kidneys

D. produces intestinal bleeding

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4

Organisms that live in the deep sea are mainly

A. Herbivores

B. Carnivores

C. Detritivores

D. None of the above

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4

Under the immunisation programme's Govt. of India is providing vaccination to prevent some vaccine-preventable diseases. Which of the following is NOT one of them?

A. Tuberculosis

B. Diphtheria

C. Tetanus

D. Plague

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4

Which organism probably arrived first in the world?

A. Algae

B. Fungi

C. Protozoa

D. None of the above

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4

The blood pressure is controlled by the hormone

A. Vasopressin

B. Oxytocin

C. Oestrogen

D. Testasterone

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4

Charles Darwin was influenced in his work by

A. Wallace

B. Lamarck

C. Malthus

D. Mendel

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4

Kwashiorkar is characterised by

A. dermatitis, changes in hair pigments and retarded brain growth

B. excretion of creatine in excess

C. tyrosinosis and alcaptonuria

D. None of these