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Class 11 - Biology Mock Tests

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Class 11
Biology Mock Test 1

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 2

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 3

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 4

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 5

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 6

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 7

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 8

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 9

Questions:: 30
Duration:: 30 minutes
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Class 11
Biology Mock Test 10

Questions:: 30
Duration:: 30 minutes
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Practice tests for Topics/Chapters

Sample Questions

NEET Biology
In the human body, the hormone aldosterone primarily acts on which part of the nephron?
A Proximal convoluted tubule (PCT)
B Loop of Henle
C Distal convoluted tubule (DCT) and collecting duct
D Glomerulus
NEET Biology
Which of the following is the correct statement about "intrinsic rate of natural increase" (r) in population ecology?
A r represents the maximum per capita growth rate of a population under ideal conditions (r = birth rate - death rate); a higher r means faster population growth
B r represents the carrying capacity of an environment; a higher r means the environment can support more individuals
C r is always negative in natural populations because death rates exceed birth rates
D r measures only the number of births in a population, ignoring deaths completely
NEET Biology
Which of the following is a correct statement about the difference between a population and a community in ecology?
A A population consists of all individuals of a single species in an area, while a community consists of all populations of different species in an area
B A population consists of all species in an area, while a community consists of only one species
C A population includes abiotic factors, while a community does not
D There is no difference between a population and a community
NEET Biology
Which of the following is a biodiversity hotspot region in India?
A Western Ghats
B Thar Desert
C Eastern Himalayas only
D Great Indian Desert
NEET Biology
Which cells in the retina are responsible for vision in dim light (scotopic vision)?
A Rod cells
B Cones
C Bipolar cells
D Ganglion cells
NEET Biology
In which phase of the cell cycle does DNA replication occur?
A G₁ phase
B S phase
C G₂ phase
D M phase
NEET Biology
Chargaff's rule states that in double-stranded DNA:
A Adenine equals thymine, and guanine equals cytosine in molar ratios
B Adenine equals guanine, and thymine equals cytosine
C Purines equal pyrimidines in total amount, but A ≠ T
D The amount of DNA is the same in all organisms
NEET Biology
In ecology, the term "succession" refers to:
A A random change in species composition over time
B A predictable and orderly change in the species composition of an ecosystem over time
C A sudden change in ecosystem due to natural disasters
D A decrease in biodiversity over time

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