General Knowledge Question Answer: Biology GK Questions and Answers

General Knowledge Biology Questions, Biology Quiz for Competitive Exams, Important Biology MCQs for GK

Q. Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R) :
Assertion (A) : Maximum number of the species of butterflies are found in tropical countries.
Reason (R) : Butterflies can not tolerate low temperatures.
Select the correct answer using the codes given below -
Codes :

1) Both (A) and (R) are true and (R) is the correct explanation of (A)
2) Both (A) and (R) are true but (R) is not the correct explanation of (A)
3) (A) is true, but (R) is false
4) (A) is false, but (R) is true

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Q. Mother's milk provides almost complete diet to the new-born, but it lacks the following -
1) Iron
2) Calcium
3) Magnesium
4) Potassium

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Q. Which of the following statements about enzymes is/ are correct?
1. They are biocatalysts.
2. They perform their action on the site where they are produced.
Select the correct answer from the codes given below -
Codes :

1) 1 only
2) 2 only
3) Both 1 and 2
4) Neither 1 nor 2

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Q. Given below are two statements, one labelled as Assertion (A) and the other as Reason (R) :
Assertion (A) : Most of the vitamins are not synthesised in human body.
Reason (R) : Human organs synthesis only essential micro nutrients.
Select the correct answer from the codes given below -
Codes :

1) Both (A) and (R) are true and (R) is the correct explanation of (A)
2) Both (A) and (R) are true but (R) is not the correct explanation of (A)
3) (A) is true, but (R) is false
4) (A) is false, but (R) is true

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Q. Use of polished rice in human diet causes the following disease -
1) Beriberi
2) Goitre
3) Night blindness
4) Colour blindness

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Q. Which of the following statement is not true?
1) Species diversity increases from equator towards poles
2) Tropics harbour more species than temperate areas
3) Greatest biodiversity occurs in Amazonean rain forest
4) Species diversity decreases from temperate areas towards poles

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Q. The environment modified by human activities is called -
1) Natural environment
2) Anthropogenic environment
3) Urban environment
4) Modem environment

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Q. With reference to Eutrophication, which of the following statements is/ are correct?
1. It is a phenomenon of nutrient enrichment of a water body.
2. It depletes dissolved oxygen of the water.
Select the correct answer using the codes given below :

1) 1 only
2) 2 only
3) Both 1 and 2
4) Neither 1 nor 2

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Q. Tulsi plant has medicinal values due to the presence of the following -
1) Inorganic acid
2) Organic acid
3) Phenols and Flavonoids
4) None of the above

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Q. Which of the following glands in human body acts both as a endocrine gland as well as an exocrine gland?
1) Adrenal gland
2) Lacrimal gland
3) Pancreas
4) Thyroid

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