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4th March 2016, 05:18 PM
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Join Date: Apr 2013
Re: WBJEE Previous Year Question Paper Download

Hello, here I am providing you the previous years papers of WBJEE as under:

1. One molecule of triglyceride is produced using
(A) One fatty acid and one glycerol
(B) One fatty acid and three glycerols
(C) Three fatty acids and three glycerols
(D) Three fatty acids and one glycerol
Ans : (D)
Hints :
One molecule of triglyceride is produced by three molecules of fatty acids and one molecule of glycerol.

2. Glutenin is an important protein in
(A) Potato
(B) Wheat
(C)
Soybean
(D) Spinach
Ans : (B)
Hints :
Glutenin is a storage protein present in wheat

3. Which one of the followings is enriched with a non-reducing sugar ?
(A) Grapes
(B)
Germinating barley grains
(C) Table sugar
(D)
Mother’s milk
Ans : (C)
Hints :
Table sugar is sucrose which is a non-reducing sugar.

4. Select the CORRECT statem nt elated o mitosis
(A) Amount of DNA in the par nt cell is first halved and then distributed into two daughter cells
(B) Amount of DNA in the parent cell is first doubled and then distributed into two daughter cells
(C) Amount of DNA in the parent cell is first halved and then distributed into four daughter cells
(D) Amount of DNA in the parent cell is first doubled and then distributed into four daughter cells
Ans : (B)

5. The frequency of crossing-over occurring between two genes located on the same chromosome depends on
(A) Length of the chromosome
(B) Position of the centromere
(C) Activities of two genes
(D) Distance between two genes
Ans : (D)
Hints :
Frequency of crossing-over is directly proportional to the distance between two genes.

6. Chlorophyll molecules are located in the
(A) Thylakoid membrane
(B) Thylakoid lumen
(C) Stroma
(D)
Inner chloroplast membrane
Ans : (A)

7.
The primary cell wall is mainly made up of
(A) Lignin (B) Pectin (C)
Cellulose (D)
Protein
Ans : (C)

8. Which of the folloiwng statements is wrong for sucrose ?
(A) It is a disaccharide (B) It is a non-reducing sugar
(C) It accumulates in the cytoplasm (D) It is comprised of maltose and fructose
Ans : (D)
Hints :
Sucrose is a disaccharide composed of glucose and fructose.

9. Which of the followings is always ABSENT in prokaryotic cells ?
(A) Ribosome (B)
Mitochondria (C) DNA (D)
Cell wall
Ans : (B)

10. Which of the following tissues provide maximum mechanical support to plant organs ?
(A) Sclerenchyma (B)
Collenchyma (C) Parenchyma (D) Aerenchyma
Ans : (A)
Hints :
It is thick walled, lignified dead mechanical tissue

11. The Respiratory Quotient (RQ) of glucose is
(A) 0.5 (B) 0.7 (C) 1.0 (D) 1.5
Ans : (C)

12. Cross-pollination through insect agent is called
(A) Anthropophily (B)
Malacophily (C) Entomophily
(D) Ornithophily
Ans : (C)

13. Cleistogamous flowers are
(A) Bisexual flowers which remain opened
(B) Bisexual flowers which remain closed
(C) Open female flower (D) Open male flower
Ans : (B)

14. Which one of the following is a g owth regulator produced by plants ?
(A) Naphthalene acetic acid (B)
Zeatin
(C) 2,4-Dichlorophenoxyacetic acid (D) Benzyl aminopurine
Ans : (B)
Hints :
Zeatin belongs to the family of natural plant growth regulator called cytokinin.

15. In apple, the edible portion is
(A) Mesocarp (B)
Epicarp (C)
Endocarp (D)
Thalamus
Ans : (D)


WBJEE Previous Year Question Paper Download







Here I am providing you more paper as under:
Attached Files
File Type: pdf WBJEE Previous Year Question Paper Download.pdf (1.04 MB, 121 views)


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