Biology MCQs For WBCS Exam
WBCS BIOLOGY MCQ Q1.
RNA is found in—
(A) Animal cell
(B) Plant cell
(C) Virus
(D) All of the above
Ans. (D)
WBCS BIOLOGY MCQ Q2.
Mitochondrial membrane is a double layered structure composed of—
(A) Lipids and proteins
(B) Lipids and carbohydrates
(C) Proteins and carbohydrates
(D) Proteins and Ribonucleic acid
Ans. (A)
WBCS BIOLOGY MCQ Q3.
In Leech, the male and female genital apertures are located respectively in the—
(A) 7th and 8th segment
(B) 10th and 11th segment
(C) 13th and 14th segment
(D) 18th and 21st segment
Ans. (B)
WBCS BIOLOGY MCQ Q4.
Dental formula of Rabbit is—
(A) 2, 0, 3, 3/1, 0, 2, 3
(B) 1, 0, 2, 3/2, 2, 0, 3
(C) 1, 0, 3, 3/2, 2, 0, 3
(D) 2, 1, 3, 2/2, 1, 2, 3
Ans. (A)
WBCS BIOLOGY MCQ Q5.
The gestation period of rabbit is—
(A) 20—25 days
(B) 25—28 days
(C) 28—32 days
(D) 32—38 days
Ans. (C)
WBCS BIOLOGY MCQ Q6.
The function of kidney in mammals is to excrete
(a) Extra urea, extra water and extra amino acids
(b) Extra urea, extra water and carbohydrate
(c) Extra urea, salts and excess water
(d) Extra salts, urea and excess water
Ans. (c)
WBCS BIOLOGY MCQ Q7.
The breathing centre in the brain responds to changes in the
(a) Oxygen concentration of the blood
(b) Carbon dioxide concentration of the blood
(c) Glucose in the mitochondria
(d) Acetyl coenzyme A in the mitochondria
Ans. (b)
WBCS BIOLOGY MCQ Q8.
Which is present in the kidney?
(a) Glomeru1us
(b) Ciliated nephron
(c) Middle kidney duct
(d) Nephridia
Ans. (a)
WBCS BIOLOGY MCQ Q9.
Most of the carbon dioxide in the blood is carried in the form of
(a) Carbonic acid.
(b) Bicarbonates
(c) Carbaminohemoglobin
(d) Dissolved CO2
Ans. (b)
WBCS BIOLOGY MCQ Q10.
Which one of the following binds with hemoglobin irreversibly?
(a) Carbon dioxide
(b) Carbon monoxide
(c) Ethane
(d) Nitrogen
Ans. (b)
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⚡BIOLOGY MCQs SET 27[PREV]
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