Biology - General Knowledge Questions and Answers

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The right portion of human heart receives ________ blood.

Pure

Impure

Mixed

None

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Arteries supplying blood to the heart are called

Carotid arteries

Hepatic arteries

Coronary arteries

Pulmonary arteries

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The plasma of the blood contains which among the following constituents?
I. Proteins
II. Salts
III. Hormones

Only I and II

Only I and III

Only II and III

All I, II and III

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Antibodies is produced in the plasma of blood by

Monocytes

Lymphocytes

Eosinophils

Neutrophils

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Which one among the following statements is correct?

All arteries carry oxygenated blood

All veins carry oxygenated blood

Except the pulmonary artery, all other arteries carry oxygenated blood

Except the pulmonary vein, all other veins carry oxygenated blood

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To complete one heart beat the time taken is

1 sec

1 minute

1.5 sec

0.8 second

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Pace maker is related with

Kidney

Brain

Lung

Heart

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PH of human blood is

7.4

6.2

7.5 - 8.0

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PH value of human blood is

8.1

8.4

7.4

9.2