Question # 1

Which ions are involved in opening and closing of stomata?

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Potassium ions

Chloride ions

Sodium ions

Iodide ions

Which of the following chambers has the thickest walls in human heart?

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Right atrium

Left atrium

Left ventricle

Right ventricle

Heart consists of ............ chambers.

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Two

Three

Four

Five

Stomata close when the guard cells;

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Lose water

Gain chloride ions

Became turgid

Gain potassium ions

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

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Plasma

Lymph

Serum

Puss

Which of the following structures are not cells.

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Lymophocytes

Eosinophils

Monocytes

Platelets

Which of the following is a type of leukocyte?

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Macrophage

Eosinophil

Monocyte

All of the above

Pulmonary veins originate from .............. .

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Liver

Lungs

Kidney

Intestine

Which of the followings is area of supply of blood in plants?

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Leaf

Stem

Fruit

All

In most plants, the food is transported in the form of:

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Glucose

Sucrose

Starch

Proteins

The percentage of inorganic salts and in the plasma is:

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0.6

0.7

0.8

0.9

The percentage of plasma protein in the blood is:

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4 - 5

5-6

7-8

7-9

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