Question # 1

Which of the following blood vessels have oxygenated blood?

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Pulmonary artery

Pulmonary vein

Superior vena cave

Inferior vena cave

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

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50%

55%

40%

45%

Which of these are responsible for blood clotting?

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Platelets

Erythrocytes

Neutrophils

Baseophils

Which of the following tissue layer is found in all blood vessels?

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Smooth muscle

Endothelium

Skeletal muscle

Connective tissue

Trace the pathway of water from the soil through the plant to be the atmosphere:

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Endodermis, cortex , epidermis , xylem , intercellular spaces in mesophyll, stomata

Epidermis, endodermis , phloem, cortex of leaf, intercellular spaces of mesophyll, stomatta

Root hairs, epidermis , Cortex, xylem, endodermis, intercellular spaces in mesophyll, stomata

Root hairs, Cortex, endodermis ,xylem,intercellular spaces in mesophyll, stomata

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

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Liver

Lungs

Kidney

Intestine

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

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Hypertension

Smoking

Diabetes

All of above

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

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Higher

Lower

Remain constant

None

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

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Glucose

Sucrose

Starch

Proteins

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

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Transpiration

Transcription

Translation

Allof above

The exchange of materials between the blood and the surrounding tissues occurs in:

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Arteries

Veins

Capillaries

All of the above

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

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Stem

Root

Leaf

All

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

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

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