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4

Digestion of proteins starts in the

A. mouth

B. stomach

C. duodenum

D. intestine

Correct Answer :

B. stomach


Related Questions

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4

The blood of cockroach shows the following characteristics except one. Mark it.

A. It serves to distribute nutrient directly to every part of the body

B. It contains several kinds of corpuscles without haemoglobin

C. It collects metabolic wastes

D. It carries oxygen

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4

Who first observed the plasma membrane?

A. William Seifriz

B. Schwann

C. Palade

D. None of the above

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4

Sleeping sickness in man is caused by the organism

A. plasmodium

B. entamoeba

C. giardia

D. trypanosome

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4

Blood is a kind of

A. epithelial tissue

B. connective tissue

C. nervous tissue

D. cartilage

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4

Diseases in plants can be caused by

A. virus

B. bacteria

C. fungi

D. All the above

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4

Dialysis is used when there is a failure of

A. heart

B. lungs

C. liver

D. kidneys

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4

The country's first 'brain bank' that can store up to 300 human brains has been opened at

A. Alleppey

B. Bengaluru

C. Bhubaneshwar

D. Mumbai

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4

The metallic part in haemoglobin is

A. Copper

B. Molybdenum

C. Nickel

D. Iron

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4

Loss of blood is minimized due to blood

A. clotting

B. receding

C. healing

D. drying up

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4

A child goes on vomiting profusely and develops symptoms of diarrhoea. Chances are that in the child's blood serum there is a drop In

A. calcium

B. iron

C. sodium

D. phosphorus

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4

Synthesis of nutrients by green plants is called

A. photo-oxidation

B. photo-respiration

C. photo-synthesis

D. photo-periodism

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4

Colour vision is made possible by the cells in the retina called

A. rods

B. cones

C. fovea

D. blind spot

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4

The dinosaurs (terrible lizards) became very successful during

A. Palaeozoic era

B. Mesozoic era

C. Cenozoic era

D. Archaeozoic era

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4

The part of the human brain concerned with sight is the

A. Frontal lobe

B. Parietal lobe

C. Temporal lobe

D. Occipital lobe

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4

Nekton are those organisms

A. which cannot be netted

B. which are independent of tides and waves

C. which have long necks

D. None of the above

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4

The cell theory of Schleiden and Schwann states that

A. cells reproduce by mitosis or meiosis

B. all cells have nuclei

C. cells are basic units of plants and animals

D. cells arise only from pre-existing cells

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4

The scientist who discovered the blood groups is

A. Landsteiner

B. TH Morgan

C. William Harvey

D. Darwin

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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

The spider spins its web from a liquid secreting from its

A. posterior silk gland

B. posterior abdomen glands

C. mouth

D. salivary glands

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4

Blood plasma from which fibrinogen is removed is known as

A. serum

B. blood concentrate

C. lymph

D. antibody component

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4

Xerophthalmia is a deficiency disease. Deficiency of _________ causes it.

A. vitamin A

B. vitamin B

C. vitamin C

D. vitamin E

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4

Dinosaur is a/an

A. Fish

B. Amphibian

C. Reptile

D. Bird

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4

Lactose and Rennin, the enzymes required to digest milk, disappear in the human body by the age of _______ years.

A. 2

B. 3

C. 5

D. 8

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4

Hypogeal germination is found in

A. castor

B. onion

C. bean

D. bengal gram

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4

Darwinism does not explain

A. progression

B. retrogression

C. usefulness of all organs

D. presence of vestigial organs

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4

Bird nu is a disease which affects and spreads through

A. Cattle

B. Sheep

C. Prawn

D. Poultry

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4

The influenza vaccine was discovered by

A. Salk

B. Khorana

C. Mittel

D. None of the above

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4

What is the bacterial disease in lime fruits?

A. Phythophthora

B. White rust

C. Citrus canker

D. Smut disease

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4

Sadabahar, a common weed, is the raw material that provides the source of medicines used In the treatment of

A. gout

B. blood cancer

C. coronary heart disease

D. polio

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4

Green plants In the sea are useful for respiration of flash because they

A. release oxygen

B. release carbon dioxide

C. release oxygen and carbon dioxide simultaneously

D. take oxygen and give out carbon dioxide