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JEE Exam  >  JEE Test  >  WB Sample Papers, Section Wise & Full Mock Tests 2026  >  WBJEE Biology Previous Year (2009) - JEE MCQ

WBJEE Sample Papers, Section Wise & Full Biology Previous Year (2009) Free


MCQ Practice Test & Solutions: WBJEE Biology Previous Year (2009) (80 Questions)

You can prepare effectively for JEE WBJEE Sample Papers, Section Wise & Full Mock Tests 2026 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "WBJEE Biology Previous Year (2009)". These 80 questions have been designed by the experts with the latest curriculum of JEE 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 160 minutes
  • - Number of Questions: 80

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WBJEE Biology Previous Year (2009) - Question 1
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The length of DNA hgaving 23 base pair is

Detailed Solution: Question 1

Distance between adjacent base pairs = 3.4Å

WBJEE Biology Previous Year (2009) - Question 2
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Which Ig is produced in primary immune response?

Detailed Solution: Question 2

IgM is produced in primary response to the given antigen

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WBJEE Biology Previous Year (2009) - Question 3
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The average diameter of Red Blood Corpuscles of man is

Detailed Solution: Question 3

The average diameter of RBC of man is 7.2 µ m

WBJEE Biology Previous Year (2009) - Question 4
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FAD is electron acceptor during oxidation of which of the following?

Detailed Solution: Question 4

FAD is electron acceptor during oxidation of succinic acid to fumaric acid

WBJEE Biology Previous Year (2009) - Question 5
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The chemical nature of hormones secreted by α & δ cells of pancreas is –

Detailed Solution: Question 5

Hormones produced by α cells (glucagon) and β cells (somatostatin) are polypeptide

WBJEE Biology Previous Year (2009) - Question 6
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The genetic material of Rabies virus is

Detailed Solution: Question 6

The genetic material of Rabies virus is ss RNA

WBJEE Biology Previous Year (2009) - Question 7
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T-lymphocyte is produced in

Detailed Solution: Question 7

T-lymphocyte are produced in bone marrow but mature in thymus

WBJEE Biology Previous Year (2009) - Question 8
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How many ATP molecules are obtained from fermentation of 1 molecule of glucose?

Detailed Solution: Question 8

Two molecules of ATP are produced by fermentation of one molecule of glucose

WBJEE Biology Previous Year (2009) - Question 9
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Number of nitrogenous bases in a Codon is

Detailed Solution: Question 9

Three nitrogenous bases are found in a codon.

WBJEE Biology Previous Year (2009) - Question 10
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A character which is expressed in a hybrid is called

Detailed Solution: Question 10

Dominant gene is expressed in a hybrid

WBJEE Biology Previous Year (2009) - Question 11
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In which stage of cell division chromosomes are most condensed?

Detailed Solution: Question 11

Chromosome is most condensed in metaphase

WBJEE Biology Previous Year (2009) - Question 12
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Which of the following is correct

Detailed Solution: Question 12

Down’s syndrome is trisomy of 21st chromosome

WBJEE Biology Previous Year (2009) - Question 13
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Genetically engineered bacteria are being employed for production of

Detailed Solution: Question 13

Human insulin is now being produced by genetically engineered bacteria (E.coli). This insulin is called Humulin

WBJEE Biology Previous Year (2009) - Question 14
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Scientific name of sunflower is

Detailed Solution: Question 14

Helianthus annuus is sunflower

WBJEE Biology Previous Year (2009) - Question 15
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By which of the following methods, new and better varieties of plants can be formed?

Detailed Solution: Question 15

Better variety of plant can be formed by hybridisation followed by selection.

WBJEE Biology Previous Year (2009) - Question 16
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Which one is product of aerobic respiration?

Detailed Solution: Question 16

Malic acid is product of aerobic respiration

WBJEE Biology Previous Year (2009) - Question 17
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CO2 acceptor in C3 cycle is

Detailed Solution: Question 17

RUBP (Ribulose 1.5. biphosphate) is CO2 acceptor in C3 plant

WBJEE Biology Previous Year (2009) - Question 18
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Virus was discovered by whom?

Detailed Solution: Question 18

Ivanowsky discovered virus

WBJEE Biology Previous Year (2009) - Question 19
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Electron microscope is based on principle of

Detailed Solution: Question 19

Electrton microscope is based on principle of electromagnetic theory

WBJEE Biology Previous Year (2009) - Question 20
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Citric acid cycle is the alternate name of which of the following?

Detailed Solution: Question 20

Citric acid cycle or Krebs’cycle or Tricarboxylic acid cycle is alternative names

WBJEE Biology Previous Year (2009) - Question 21
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Vascular tissue in higher plants develop from which of the following :

Detailed Solution: Question 21

Procambium forms vascular tissue in higher plants

WBJEE Biology Previous Year (2009) - Question 22
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Which element is cause of etai etai disease

Detailed Solution: Question 22

Etai etia is caused by Cd

WBJEE Biology Previous Year (2009) - Question 23
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Chromosomes can be stained with one of the following chemicals

Detailed Solution: Question 23

Acetocarmine is used to stain chromosome

WBJEE Biology Previous Year (2009) - Question 24
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Which one of the following is the American Poultry breed

Detailed Solution: Question 24

Rhod island Red is the American Poultry Breed

WBJEE Biology Previous Year (2009) - Question 25
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Which part of the human brain is largest :

Detailed Solution: Question 25

Cerebrum is the largest part of brain

WBJEE Biology Previous Year (2009) - Question 26
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When the other floral parts are arranged at the base of the gynoecium, the flower is called :

Detailed Solution: Question 26

Hypogynous flower/Superior ovary

WBJEE Biology Previous Year (2009) - Question 27
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In a CAM plant the concentration of organic acid :

Detailed Solution: Question 27

In a CAM plant the concentration of organic acid increases during night

WBJEE Biology Previous Year (2009) - Question 28
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Protein coat of virus is known as :

Detailed Solution: Question 28

Protein coat of virus is called capsid

WBJEE Biology Previous Year (2009) - Question 29
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Net yield of aerobic respiration during Krebs’ cycle per glucose molecule is :

Detailed Solution: Question 29

Net yield of 2ATP for two Krebs’ cycle (1 glucose molecule) is produced at SLP

WBJEE Biology Previous Year (2009) - Question 30
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Feedback inhibition of enzymes is affected by which of the following

Detailed Solution: Question 30

Feedback inhibition is affected by end products

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About this JEE Practice Test

This test contains 80 MCQs on WBJEE Biology Previous Year (2009) with detailed solutions for each question. It is part of the WBJEE Sample Papers, Section Wise & Full Mock Tests 2026 course on EduRev, designed to align with the current JEE syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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