Question # 1

What happens when a mismatched blood group is injected in recipient?

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Antibodies of the recipient's blood destroy donor's RBCs

Antibodies of the donor's blood breakdown recipient's RBCs

Both of these can happen

None of these and such transfusion can be safe

Atherosclerosis is caused due to ............. .

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Hypertension

Smoking

Diabetes

All of above

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

When do the atria contract?

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Before diastole

After systole

During diastole

During systole

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

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Stem

Root

Leaf

All

Arteries can be divided into ........... types.

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Two

Three

Four

Five

Normal rate of heart beat in a healthy human being is ......... beats per minute.

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72

73

70

75

PH of human blood is ......................... .

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7.1

7.2

7.3

7.4

Plants form beneficial relationships with soil bacteria fungi in order to:

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Avoid diseases

Absorption of minerals

Transpire more water

All of these

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

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Arteries

Veins

Capillaries

All of the above

A cubic millimeter of blood contain about ............. million RBCs.

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5

10

15

20

Blood is composed of ................. parts.

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One

Two

Three

fOUR

Blood circulation in humans being was first described by Muslim Anatomist ............... .

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William Harvey

Ibn-al-Nafees

Bu Ali Seena

Ibn Al Haitehm

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Biology 9th Class English Medium Chapter 9 Online Test MCQs With Answers

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