Question # 1

When fibrinogen makes blood clot,it separates from blood and the remainder is called:

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Plasma

Lymph

Serum

Puss

During rain the rate of transpiration is ............. .

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Minimum

Maximum

Both

None

................ is the first organ which comes out of seed.

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Stem

Root

Leaf

All

Which of the following blood vessels have oxygenated blood?

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Pulmonary artery

Pulmonary vein

Superior vena cave

Inferior vena cave

The grater the no. of stomata on leaf , the ............. would be transpiration.

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Higher

Lower

Remain constant

None

Plasma is made up of water and _____________

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Metabolities and wastes

Salts and ions

Proteins

All of the above

In experiments to show transpiration from lead surfaces cobalt chloride paper changes its colour from:

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Pink to blue

Blue to pink

Pink to colourless

Colourless to pink

Which of the following is a function of human blood?

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It regulates body temperature

It transports wastes

It provides defence

All of the above

Valves to prevent the backflow of blood are found in the:

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Arteries

Veins

Capillaries

All of the above

One complete cardiac cycle takes ......... second .

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0.2 sec

0.5 sec

0.8 sec

0.9 sec

Plasma constitute about ............. %.

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50%

55%

40%

45%

A patient with blood group A can be given the blood of donor who has:

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Blood group A or AB

Blood group A or O

Blood Group A only

Blood group O only

When stomatal opening reduce in sixe, the rate of transpiration ............... .

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Transpiration

Transcription

Translation

Allof above

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