Biology Practice Test 2




Biology Practice Test 2

Biology Practice Test 2 is designed to help students strengthen their understanding of key biological concepts, theories, and processes for competitive entry tests like MDCAT, NUMS, AKU, UET, ECAT, NTS, as well as FSC Board Exams. This test covers topics from molecular biology, cell division, human physiology, plant physiology, and more, helping students improve accuracy and retention.

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Biology Practice Test 2

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1 / 100

Category: Biology Ch 9 Class 12

Recombinant DNA contains DNA from

2 / 100

Category: Biology Ch 6 Class 11

A type of bacterial cell that is completely surrounded by flagella is called:

PMC Practice 5
Biology
Kingdom Prokaryote
Elimination Tool:

3 / 100

Category: Biology Ch 3 Class 11

The lock and key model of enzyme action was proposed by:

PMC Sample 3
Biology
Enzymes
Elimination Tool:

4 / 100

Category: Biology Ch 3 Class 11

A chemical substance which can react (in place of substrate) with the enzyme but is not transformed into product/s and thus blocks the active site temporarily or permanently is called

5 / 100

Category: Biology Ch 6 Class 11

The first bacterium isolated was

6 / 100

Category: Biology Ch 14 Class 11

Arteriosclerosis is:

NUMS 2016
Biology
Transport
Elimination Tool:

7 / 100

Category: Biology Ch 6 Class 12

The sequence of nucleotides that determines the amino acid sequence of a protein is

8 / 100

Category: Biology Ch 9 Class 11

Which of the following of bryophytes are the simplest one?

9 / 100

Category: Biology

Q.7 The thalamus and the hypothalamus are located in which region of the brain?

10 / 100

Category: Biology Ch 3 Class 11

Inhibitors which block the enzyme by forming weak bond are called

11 / 100

Category: Biology Ch 4 Class 12

Which of these cycles operate in human females?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

12 / 100

Category: Biology Ch 2 Class 11

Which of these is not a disaccharide?

NUMS 2018
Biology
Biological Molecules
Elimination Tool:

13 / 100

Category: Biology Ch 8 Class 11

Which one of the following is different from all the rest regarding the number of cells inits body?

14 / 100

Category: Biology

Q.42 All of the following are paired facial bones except:

15 / 100

Category: Biology Ch 10 Class 11

The mammals termed as the connecting link between reptilians and mammals are:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

16 / 100

Category: Biology Ch 12 Class 11

Fundography is relevant to:

NUMS 2016
Biology
Nutrition
Elimination Tool:

17 / 100

Category: Biology

Which one of the following is common to all neurons?

NUMS Mock 3
Biology
Coordination and Control

18 / 100

Category: Biology Ch 10 Class 12

Change in frequency of alleles that occurs by chance Is called as:

UHS 2019
Biology
Evolution
Elimination Tool:

19 / 100

Category: Biology Ch 9 Class 12

By PCR we mean:

UHS 2018
Biology
Biotechnology
Elimination Tool:

20 / 100

Category: Biology Ch 6 Class 12

A fern has _____ pairs of chromosomes.

NTS 2012
Biology
Chromosomes and DNA
Elimination Tool:

21 / 100

Category: Biology Ch 11 Class 12

Disease in living organisms caused by parasites is called

22 / 100

Category: Biology Ch 4 Class 11

Strengthening material of prokaryotic cell wall is

23 / 100

Category: Biology

Which was the first virus to be successfully crystalized?

NUMS Mock 1
Biology
Bio-diversity | Variety of Life

24 / 100

Category: Biology Ch 9 Class 11

Antheridia and archegonia are _____ organs in bryophytes.

NTS 2015 DUHS and JSMU
Biology
Kingdom Plantae
Elimination Tool:

25 / 100

Category: Biology Ch 2 Class 11

Carbon atom is

26 / 100

Category: Biology Ch 7 Class 11

Which of the following results from conjugation in paramecium?

PMC Practice 3
Biology
Kingdom Protista
Elimination Tool:

27 / 100

Category: Biology Ch 11 Class 11

The organisms able to use sunlight directly as a source of energy are

28 / 100

Category: Biology Ch 12 Class 11

Secretion of pancreatic juice is stimulated by:

NUMS 2019 Cancelled
Biology
Nutrition
Elimination Tool:

29 / 100

Category: Biology Ch 10 Class 12

A group of populations that have the potential to interbreed in nature is

30 / 100

Category: Biology

As an essential element in living organisms, _______ ion is playing an important role in insulin secretion, the release of neurotransmitters, muscle contraction, and heartbeat regulation.

NUMS Mock 2
Biology
Coordination and Control

31 / 100

Category: Biology

The gene which controls the ABO group has how many alleles in an individual?

NUMS Mock 3
Biology
Variation and Genetics

32 / 100

Category: Biology Ch 8 Class 12

The trait “Kernel colour in corn” in controlled by how many pairs of genes

33 / 100

Category: Biology Ch 13 Class 11

During breathing air from Pharynx enters to:

UHS 2018
Biology
Gaseous Exchange
Elimination Tool:

34 / 100

Category: Biology

Some enzymes require the presence of a non protein molecule to behave catalytically. An enzyme devoid of this molecule is called a(n):

NUMS Mock 1
Biology
Enzymes

35 / 100

Category: Biology Ch 8 Class 12

A cross between F1 hybrids and either of parents is called:

NUMS 2014
Biology
Variation and Genetics
Elimination Tool:

36 / 100

Category: Biology Ch 2 Class 12

Vertebrae of the neck are called:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

37 / 100

Category: Biology Ch 12 Class 11

A hormone called _______ controls the secretion of gastric juice.

NUMS 2018
Biology
Nutrition
Elimination Tool:

38 / 100

Category: Biology Ch 13 Class 11

Which one of the following is a genetic disorder in which abnormally thick mucus is produced in the lungs and other parts of the body?

NUMS 2020
Biology
Gaseous Exchange
Elimination Tool:

39 / 100

Category: Biology Ch 4 Class 11

Tissue is a

PMC 2020
Biology
Cell Structure and Function
Elimination Tool:

40 / 100

Category: Biology Ch 7 Class 11

Freshwater protozoans pump out excess water by a special structure called:

NUMS 2017
Biology
Kingdom Protista
Elimination Tool:

41 / 100

Category: Biology Ch 6 Class 12

Mutations can occur in:

NUMS 2016
Biology
Chromosomes and DNA
Elimination Tool:

42 / 100

Category: Biology Ch 10 Class 11

Coelom that develops from the archenteron as outpouching is

43 / 100

Category: Biology Ch 9 Class 11

Which of the following is true in angiosperm life cycle?

NTS 2014
Biology
Kingdom Plantae
Elimination Tool:

44 / 100

Category: Biology Ch 4 Class 11

Chief material present in the cell wall of plants, fungal, and prokaryotic cells is:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

45 / 100

Category: Biology Ch 10 Class 11

Which one of following is a true fish?

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

46 / 100

Category: Biology Ch 14 Class 11

How many ml of blood is pumped by each contraction of the heart?

NUMS 2016
Biology
Transport
Elimination Tool:

47 / 100

Category: Biology Ch 1 Class 11

The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by

48 / 100

Category: Biology

Q.55 Immunogen is a foreign substance and stimulates the formation of:

49 / 100

Category: Biology Ch 12 Class 11

Living things that would be the first to experience adverse effects if large amounts of carbon dioxide were taken out of the biosphere are:

NTS 2014
Biology
Nutrition
Elimination Tool:

50 / 100

Category: Biology Ch 11 Class 12

Study of relationship of organisms to their environment is

51 / 100

Category: Biology

Q.59 The last common ancestor of humans is known to be which of the following?

52 / 100

Category: Biology Ch 11 Class 11

NADH produces how many ATP?

NUMS 2016
Biology
Bioenergetics
Elimination Tool:

53 / 100

Category: Biology

Q.58 Acording to the law of independent assortment, what is the possible number of combinations that chromosomes can assort to independently in the gamete?

54 / 100

Category: Biology Ch 8 Class 12

Read the passage below to answer the question:

Hemophilia is a disorder in which blood fails to clot. Saad, a male hemophiliac, marries Sara, a normal woman and together they have four children, two boys (Ahmed and Ali) and two girls (Alia and Ayesha). None of the children display the symptoms of Hemophilia. Ahmed, Ali, Ayesha, and Ali all marry normal individuals and have children. None of Ahmeds or Ali’s children, male or female, display symptoms of hemophilia, but the sons of Alia and Ayesha display symptoms of hemophilia while the daughters of Alia and Ayesha do not.

Which of the following individuals are heterozygous for hemophilia:

NTS 2010
Biology
Variation and Genetics
Elimination Tool:

55 / 100

Category: Biology Ch 11 Class 12

Lichen and algae form

56 / 100

Category: Biology Ch 2 Class 11

Which of the following basic structural level of proteins is indicated by an association of two alpha and two beta chains in the haemoglobin molecule?

NTS 2018
Biology
Biological Molecules
Elimination Tool:

57 / 100

Category: Biology Ch 3 Class 11

The optimum pH of catalase is:

NUMS 2018
Biology
Enzymes
Elimination Tool:

58 / 100

Category: Biology Ch 6 Class 11

Under the microscope, the bacteria appear a bluish-purple color. Which class of bacteria are on the slide?

PMC Practice 5
Biology
Kingdom Prokaryote
Elimination Tool:

59 / 100

Category: Biology

Hemoglobin carries more oxygen than plasma by:

NUMS Mock 1
Biology
Gaseous Exchange

60 / 100

Category: Biology Ch 12 Class 11

The process of swallowing is controlled by:

NUMS 2016
Biology
Nutrition
Elimination Tool:

61 / 100

Category: Biology

_______ is the storage form of carbohydrate in animals and humans which is equivalent to the _____ in plants.

NUMS Mock 3
Biology
Biological Molecules

62 / 100

Category: Biology

Q.32 Which one of the following is not a feature of the nervous system of Planaria?

63 / 100

Category: Biology

Q45 Which was the first virus to be successfully crystalized?

64 / 100

Category: Biology

Q.62 The animals that have features of both mammals and reptiles are?

65 / 100

Category: Biology Ch 6 Class 12

Who discovered DNA?

66 / 100

Category: Biology

Q.15 Genes that affect growth rate in humans influencing both weight and height are?

67 / 100

Category: Biology Ch 3 Class 12

Which one of the following is common to all neurons?

PMC 2020
Biology
Coordination and Control
Elimination Tool:

68 / 100

Category: Biology Ch 9 Class 11

Sporophyte is

69 / 100

Category: Biology Ch 14 Class 11

Which of the following is NOT a part of the immune system?

NTS 2018
Biology
Transport
Elimination Tool:

70 / 100

Category: Biology

Which of the following transport mechanism induces conformational change in protein?

71 / 100

Category: Biology Ch 7 Class 12

During which stage of meiosis do centromeres divide?

NTS 2016 DUHS & JSMU
Biology
Cell Cycle
Elimination Tool:

72 / 100

Category: Biology Ch 7 Class 12

During the G2 phase:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

73 / 100

Category: Biology Ch 1 Class 12

Right kidney is slightly lower than left kidney due to:

NUMS 2018
Biology
Homeostasis
Elimination Tool:

74 / 100

Category: Biology Ch 8 Class 12

Which of the following is monohybrid cross

75 / 100

Category: Biology Ch 14 Class 11

In human heart, the left atrium receives:

PMC 2020
Biology
Transport
Elimination Tool:

76 / 100

Category: Biology Ch 6 Class 11

Some bacteria ranging occasionally a size of 500 ?m in length are

77 / 100

Category: Biology Ch 3 Class 12

Which of the following is the function of adrenaline?

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

78 / 100

Category: Biology Ch 3 Class 12

Which of the following is used in brewing industry to promote malting:

79 / 100

Category: Biology Ch 5 Class 11

Genetically modified plants contain:

PMC Sample 2
Biology
Bio-diversity | Variety of Life
Elimination Tool:

80 / 100

Category: Biology Ch 8 Class 12

Hybrid black Guinea pigs are crossed with each other. The resulting offsprings will be:

NUMS 2016
Biology
Variation and Genetics
Elimination Tool:

81 / 100

Category: Biology Ch 2 Class 12

In an annelids, the contraction of circular muscle results in:

82 / 100

Category: Biology Ch 2 Class 12

Muscle fiber has many _____ and in turns these have many ______.

NUMS 2019 Reconduct
Biology
Support and Movement
Elimination Tool:

83 / 100

Category: Biology Ch 13 Class 12

Study of human population and things that affect them is

84 / 100

Category: Biology

The sympathetic nervous system causes which of the following?

NUMS Mock 2
Biology
Coordination and Control

85 / 100

Category: Biology Ch 13 Class 11

Vocal cords, which help in voice production are two thin edged fibrous bands, present in:

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Elimination Tool:

86 / 100

Category: Biology Ch 7 Class 12

At the beginning of nuclear division, the number of microtubule triplets in two pairs of centrioles that migrate to opposite poles are:

UHS 2015
Biology
Cell Cycle
Elimination Tool:

87 / 100

Category: Biology Ch 4 Class 12

Only one ovary is functional at a time in:

NUMS 2015
Biology
Reproduction
Elimination Tool:

88 / 100

Category: Biology Ch 2 Class 11

Which of the following amino acids has single codon?

NUMS 2014
Biology
Biological Molecules
Elimination Tool:

89 / 100

Category: Biology

Q.53  In case of snake bite, the most appropriate strategy to provide immunity would be:

90 / 100

Category: Biology Ch 8 Class 12

Ahmed’s blood CANNOT clot properly; he was diagnosed with hemophilia A. He passed this trait to his grandson through his:

NUMS 2019 Reconduct
Biology
Variation and Genetics
Elimination Tool:

91 / 100

Category: Biology Ch 7 Class 11

Plasmodium belongs to

92 / 100

Category: Biology Ch 12 Class 11

All of the insectivorous plants are true

93 / 100

Category: Biology Ch 13 Class 11

In most birds air sacs are _____ in number

94 / 100

Category: Biology Ch 9 Class 11

Chlorophyta is considered to be closest to plants but do not resemble plants in having:

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

95 / 100

Category: Biology Ch 1 Class 11

Sythetic insulin from pork was formed by which technique:

 

96 / 100

Category: Biology Ch 14 Class 11

Choose the correct pathway for the flow of blood:

NUMS 2020
Biology
Transport
Elimination Tool:

97 / 100

Category: Biology Ch 3 Class 11

An enzyme increases the speed of a reaction:

NTS 2012
Biology
Enzymes
Elimination Tool:

98 / 100

Category: Biology Ch 11 Class 11

Where do the light – dependent reactions of photosynthesis occur?

NTS 2016 SMBBMC
Biology
Bioenergetics
Elimination Tool:

99 / 100

Category: Biology Ch 2 Class 12

Many _______ expel a large amount of water by special structures called contractile vacuoles:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

100 / 100

Category: Biology Ch 1 Class 11

Which character differentiates living things from non-living organisms?

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The average score is 57%

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Structured Practice for Best Entry Test Preparation

This topic-wise and chapter-wise practice test allows students to focus on individual biology concepts, including diagrams, processes, and conceptual questions. Regular practice enhances understanding, sharpens problem-solving skills, and builds confidence to tackle both board and competitive exam questions efficiently.

Free Resources for Best Entry Test Preparation

Students can access free Biology Practice Test 2 to systematically improve knowledge, recall, and problem-solving abilities. This test is suitable for FSC Board Exams as well as major entry tests, helping students perform better in the biology section. PLS Academy provides these resources to support students in their preparation.

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