Solved MCQs of Biology Class 9
When fibrinogen makes blood clot, it separates from blood and the remainder is called:
Plasma
Lymph
Serum
Puss
The exchange of materials between the blood and the surrounding tissues occurs in:
Arteries
Veins
Capillaries
All of the above
Which of the following cells is most abundant in the blood?A
Red blood cells
White blood cells
Platelets
None of these
In the embryonic and foetal life RBCs are produced in:
Liver
Ribs
Spleen
Liver and spleen
The amount of plasma in blood is:
35%
45%
55%
65%
Which of the following structures are not cells.
Lymophocytes
Eosinophils
Monocytes
Platelets
The death of the heart tissue is called:
Arterioclerosis
Atherosclerosis
Myocardial infarction
Thalassemia
Which of the followings is area of supply of blood in plants?
Leaf
Stem
Fruit
All
Which of the following chamber has the thickest walls in human heart?
Right atrium
Left atrium
Left ventricle
Right ventricle
Atherosclerosis is caused due to …………. .
Hypertension
Smoking
Diabetes
All of above
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