Biology: Previous Year Questions (Free PDF)


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Questions:-
Q1. Penicillin is extracted from
(a)yeast
(b) algae
(c)fungus
(d) lichen

Q2. Which is the effect of antigen in an ill person ?
(a)It increases the production of W.B.C.
(b)It increases the production of antibiotics
(c)It increases the production of anti-serum against bacteria
(d)It prevents the growth of bacteria

Q3. Which among the following helps in circulation of blood ?
(a)Arithrocytus
(b)Blood platelets
(c)Monocytes
(d)Lymphocytes

Q4. Which among the following elements increases the
absorption of water and calcium in plants ?
(a)Manganese
(b)Boron
(c)Copper
(d)Molybdenum

Q5. Which wood will become useless soon after exposing in
the open air ?
(a)Softwood
(b)Fibrous wood
(c)Wet wood
(d)Hardwood

Q6. Which among the following is a large spectrum
Antibiotic ?
(a)Paracetamol
(b)Pencillin
(c)Ampicillin
(d)Chlormphenicol

Q7. Our bones and teeth are generally made of
(a)Tricalcium phosphate
(b)Fluoropetite
(c)Chloropetite
(d)Hydrolith


Q8. Angora wool is extracted from
(a)rabbit
(b) sheep
(c)fox
(d) goat

Q9. Which of the following diseases affects women easily
than that of men ?
(a)Heart attack
(b)Hepatitis
(c)Joint arthritis
(d)Arthritis

Q10. Pituitary gland is located in
(a)brain
(b)kidney
(c)liver
(d)intestine




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