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Biology MCQ Questions with answers

Here Important Biology MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

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Learn Biology MCQs [Page 4 ]

Q) Radical vascular bundles are those in which

(A) xylem is surrounded by phloem
(B) phloem is surrounded by xylem
(C) xylem and phloem occur on the same radius
(D) xylem and phloem occur on the different radii
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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Q) Plant bends towards the source of light on account of the movement of curvature known as

(A) geotropism
(B) thigmotropism
(C) chemotropism
(D) phototropism
Correct Answer - Option (D)

Explanation:
Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism (skototropism).

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Q) Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?

(A) Exact concentration of solution is not given
(B) Character of semi permeable membrane is not given
(C) The flow of solution is not possible through semi permeable membrane
(D) All are incorrect
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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Q) Photosynthesis is a process

(A) reductive and exergonic
(B) reductive and catabolic
(C) reductive, endergonic and catabolic
(D) reductive, endergonic and anabolic
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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Q) On which of the following plants did Gregor Mendal perform his classical experiment?

(A) Gram
(B) Maize
(C) Pea
(D) Wheat
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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Q) Night blindness is cause by lack of which vitamin?

(A) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin D
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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Q) Monocot root differs from dicot root in having

(A) open vascular bundles
(B) scattered vascular bundles
(C) well developed pith
(D) radially arranged vascular bundles
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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