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Biology MCQ Questions with answers

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Learn Biology MCQs [Page 1 of Department 7]

R

Ruchi Sharma • 9.84K Points
Tutor III

2) Which one among the following water-borne diseases is not caused by a bacteria ?

(A) Cholera
(B) Typhoid
(C) Bacillary dysentery
(D) Hepatitis A
Correct Answer - Option (D)

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

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N

Neha Sharma • 6.85K Points
Tutor III

3) Which of the following is / are fat soluble Vitamins?
1. Vitamin A
2. Vitamin B (Complex)
3. Vitamin C
4. Vitamin D
5. Vitamin E
6. Vitamin K
Select the correct option from the codes given below:

(A) 1, 2 & 3
(B) 1, 4, 5 & 6
(C) 1, 3, 4, 5
(D) 1, 5, 6
Correct Answer - Option (B)

Explanation:
Vitamins are divided into two groups: water-soluble (B-complex vitamins and C vitamins) and fat-soluble vitamins (A, D, E and K). Unlike water-soluble vitamins that need regular replacement in the body, fat-soluble vitamins are stored in the liver and fatty tissues, and are eliminated much more slowly than water soluble vitamins. The fat-soluble vitamins, A, D, E, and K, are stored in the body for long periods of time and generally pose a greater risk for toxicity when consumed in excess than water-soluble vitamins. Eating a normal, well-balanced diet will not lead to toxicity in otherwise healthy individuals. However, taking vitamin supplements that contain megadoses of vitamins A, D, E and K may lead to toxicity. The body only needs small amounts of any vitamin.

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N

Neha Sharma • 6.85K Points
Tutor III

4) The major difference between cartilage and bone is that:

(A) While Bone is a part of skeletal system, cartilage is a part of some other system
(B) While bone is made of collagen and calcium salts, cartilage is made of only collagen
(C) While bones have blood vessels, Cartilage have no blood vessels
(D) All of the above statements are correct
Correct Answer - Option (C)

Explanation:
The primary difference between bone and cartilage is that cartilage is flexible and lacks blood vessels. They are both part of the skeletal system. Bone and cartilage are connective tissues made up of collagen and calcium salts.

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N

Neha Sharma • 6.85K Points
Tutor III

5) Consider the following statements:
1. Banana plant has a pseudostem
2. Eye of the potato marks its point of attachment to the plant
Which among the above statements is / are correct?

(A) Only 1 is correct
(B) Only 2 is correct
(C) Both 1 & 2 are correct
(D) Neither 1 nor 2 is correct
Correct Answer - Option (A)

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

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N

Neha Sharma • 6.85K Points
Tutor III

6) Consider the following:
1. Sporulation
2. Fission
3. Budding
Which among the above is / are means of asexual reproduction?

(A) Only 1 & 2
(B) Only 2 & 3
(C) Only 1 & 3
(D) 1, 2 & 3
Correct Answer - Option (D)

Explanation:
Sporulation is a form of asexual reproduction in which spores are produced; Fission is the equal division of a bacterial cell; Budding is a form of asexual reproduction in yeasts in which small cells grow from a parent cell. Thus all are correct.

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M

Mr. Dubey • 51.17K Points
Coach

8) In the industrial production of vegetable ghee, the process involves
1.Use of nickel
2.Reduction
3.Oxidation
4.Use of H2
 The correct answers are

(A) 1, 2 and 4
(B) 3 and 4
(C) 1 and 2
(D) 2 and 3
Correct Answer - Option (A)

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

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R

Rohan Raj • 6.53K Points
Tutor III

9) Branch of science which deal with the study of causative agent of disease is

(A) Ecology
(B) Etiology
(C) Eugenics
(D) Euthenics
Correct Answer - Option (B)

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

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R

Rohan Raj • 6.53K Points
Tutor III

10) Select the correct statement about active and passive immunity.

(A) A vaccination is an example of the introduction of passive immunity into the body
(B) Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies
(C) Immunological memory is established by passive immunization
(D) The antibodies utilized in active immunity are acquired from another organism
Correct Answer - Option (B)

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