Biology Practice Test 3




Biology Practice Test 3

Biology Practice Test 3 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 genetics, evolution, ecology, biotechnology, and more, helping students improve accuracy and retention.

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Biology Practice Test 3

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1 / 100

Category: Biology Ch 7 Class 12

Which statement is incorrect?

2 / 100

Category: Biology Ch 1 Class 12

Higher turgor pressure in a plant cell is maintained by:

3 / 100

Category: Biology

The structure of a fibrous protein comprises of polypeptide chains in the form of:

NUMS Mock 2
Biology
Biological Molecules

4 / 100

Category: Biology Ch 12 Class 11

Optimum pH for action of pepsin and salivary amylase is

NTS 2016 DUHS & JSMU
Biology
Nutrition
Elimination Tool:

5 / 100

Category: Biology Ch 4 Class 12

In humans, ovaries after birth contain:

NUMS 2018
Biology
Reproduction
Elimination Tool:

6 / 100

Category: Biology Ch 5 Class 11

Which of the Euglenas (a Protoctista) character resembles that of animals:

7 / 100

Category: Biology Ch 3 Class 11

Reversible inhibitors form WEAK linkages with which of the following?

PMC Sample 3
Biology
Enzymes
Elimination Tool:

8 / 100

Category: Biology Ch 4 Class 12

Female rabbits are:

NUMS 2014
Biology
Reproduction
Elimination Tool:

9 / 100

Category: Biology

Q44 Study of fossils is called

10 / 100

Category: Biology Ch 2 Class 12

The movement of plants in response to touch stimulus is called:

NTS 2012
Biology
Support and Movement
Elimination Tool:

11 / 100

Category: Biology Ch 9 Class 11

Which one of the following types of cell are found in secondary xylem of angiosperms?

NTS 2015 DUHS and JSMU
Biology
Kingdom Plantae
Elimination Tool:

12 / 100

Category: Biology Ch 5 Class 12

The cells that play a vital role in the differentiation of various body parts are called:

NUMS 2014
Biology
Growth and Development
Elimination Tool:

13 / 100

Category: Biology Ch 7 Class 11

Based on molecular data euglenoids are thought to be closely related to

14 / 100

Category: Biology Ch 12 Class 11

Translocation of organic solutes in plants takes place through:

NUMS 2020
Biology
Nutrition
Elimination Tool:

15 / 100

Category: Biology Ch 5 Class 12

Which of the following is not related to apoptosis?

NUMS 2015
Biology
Growth and Development
Elimination Tool:

16 / 100

Category: Biology Ch 7 Class 11

Which of the following is divided by fission?

NTS 2018
Biology
Kingdom Protista
Elimination Tool:

17 / 100

Category: Biology Ch 8 Class 12

A continuously varying trait is encoded by alleles of two or more different genes located at different loci, all influencing the same trait in an additive way is known as ________.

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

18 / 100

Category: Biology Ch 9 Class 12

Transgenic organisms:

PMC 2020
Biology
Biotechnology
Elimination Tool:

19 / 100

Category: Biology Ch 1 Class 11

Different species of plants and animals living in the same habitat is called :

20 / 100

Category: Biology

Q.25 For respiratory metabolism, bacterial cell membrane contains

21 / 100

Category: Biology Ch 7 Class 12

Smooth endoplasmic reticulum is responsible for the metabolism of:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

22 / 100

Category: Biology

Red-green color-blindness is an X-linked recessive disorder. Jacob’s paternal grandfather and father are both color-blind, but his mother has two normal alleles. What is the probability that Jacob is red-green color-blind?

NUMS Mock 2
Biology
Variation and Genetics

23 / 100

Category: Biology Ch 2 Class 12

Hinge joint occurs in:

NTS 2015 SMBBMC
Biology
Support and Movement
Elimination Tool:

24 / 100

Category: Biology Ch 4 Class 12

In which organism males are haploid?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

25 / 100

Category: Biology Ch 12 Class 11

Food is assimilated into the body from digestive tract in:

NUMS 2014
Biology
Nutrition
Elimination Tool:

26 / 100

Category: Biology Ch 3 Class 11

Upon increasing the temperature the shape of enzyme’s active site?

PMC Sample 2
Biology
Enzymes
Elimination Tool:

27 / 100

Category: Biology Ch 14 Class 11

In the human body, blood circulating from the gut to the heart passes through the:

NTS 2013
Biology
Transport
Elimination Tool:

28 / 100

Category: Biology Ch 10 Class 12

Natural selection can amplify or diminish variations that are?

PMC Sample 2
Biology
Evolution
Elimination Tool:

29 / 100

Category: Biology Ch 4 Class 12

A major constituent of contraceptive pills is:

NUMS 2016
Biology
Reproduction
Elimination Tool:

30 / 100

Category: Biology Ch 3 Class 11

A student of chemical engineering mistakenly engulfed the toxic compound “A” which was a potent inhibitor of a certain enzyme. He was immediately brought to a hospital where the doctor injected, intravenously, substrate “B” to minimize the toxic effect of Compound A. His life was saved from serious damage. The treatment method shows that compound A was a ______ inhibitor.

UHS 2019
Biology
Enzymes
Elimination Tool:

31 / 100

Category: Biology Ch 3 Class 12

Which of the following is antagonist to Auxin in terms of promotion of stem growth?

32 / 100

Category: Biology Ch 3 Class 11

The active site of an enzyme:

33 / 100

Category: Biology Ch 2 Class 12

Pseudopodia are:

NTS 2016 DUHS & JSMU
Biology
Support and Movement
Elimination Tool:

34 / 100

Category: Biology Ch 6 Class 11

When was the bacteriophage phenomena rediscovered by D’Herelle?

PMC Practice 4
Biology
Kingdom Prokaryote
Elimination Tool:

35 / 100

Category: Biology

 

Q.33 The researcher notices that round seeds occur maturely in the environment.Based solely on this information, what can there searcher conclude about the round phenotype?

36 / 100

Category: Biology Ch 10 Class 12

The wings of birds and the forelegs of a horse are _____ structures.

NUMS 2016
Biology
Evolution
Elimination Tool:

37 / 100

Category: Biology Ch 8 Class 11

Tetracycline and penicillins are:

NUMS 2018
Biology
Kingdom Fungi
Elimination Tool:

38 / 100

Category: Biology Ch 6 Class 12

Haploid and monoploid numbers of chromosomes of hexaploid wheat are:

NTS 2014
Biology
Chromosomes and DNA
Elimination Tool:

39 / 100

Category: Biology

The light dependent reaction of photosynthesis occurs in:

NUMS Mock 2
Biology
Bioenergetics

40 / 100

Category: Biology Ch 1 Class 12

The concentration of Na ions in the body fluids is controlled by the ____ hormone.

NTS 2012
Biology
Homeostasis
Elimination Tool:

41 / 100

Category: Biology Ch 1 Class 12

Ammonia is chief excretory product in:

NUMS 2014
Biology
Homeostasis
Elimination Tool:

42 / 100

Category: Biology Ch 2 Class 11

Reactive parts of an amino acid are:

NUMS 2015
Biology
Biological Molecules
Elimination Tool:

43 / 100

Category: Biology Ch 3 Class 11

Extreme change in pH results in:

 

44 / 100

Category: Biology

The best function of coelom is described as ____.

NUMS Mock 1
Biology
Kingdom Animalia

45 / 100

Category: Biology Ch 6 Class 12

Who discovered DNA?

46 / 100

Category: Biology Ch 6 Class 12

Diameter of DNA double helix is:

NUMS 2015
Biology
Chromosomes and DNA
Elimination Tool:

47 / 100

Category: Biology Ch 2 Class 11

Lipids store double the amount of energy as compared to carbohydrates because of:

PMC 2020
Biology
Biological Molecules
Elimination Tool:

48 / 100

Category: Biology Ch 5 Class 12

Amniotic fluid in human embryo protects it from:

NUMS 2014
Biology
Growth and Development
Elimination Tool:

49 / 100

Category: Biology

Select a method which causes the oxidation of chemical constituent of a bacterial cell:

NUMS Mock 2
Biology
Kingdom Prokaryote

50 / 100

Category: Biology Ch 8 Class 11

The most common example of members of the kingdom fungi is/are:

NUMS 2015
Biology
Kingdom Fungi
Elimination Tool:

51 / 100

Category: Biology Ch 11 Class 11

Pyruvic acid is the end product of:

NTS 2017
Biology
Bioenergetics
Elimination Tool:

52 / 100

Category: Biology Ch 2 Class 11

Which type of protein structure contains the three dimensional structure?

NTS 2013
Biology
Biological Molecules
Elimination Tool:

53 / 100

Category: Biology Ch 12 Class 11

In fatty liver the fat contents are:

NUMS 2014
Biology
Nutrition
Elimination Tool:

54 / 100

Category: Biology Ch 9 Class 11

Leaves of ……….. are used to cure cough and cold in horses.

NUMS 2015
Biology
Kingdom Plantae
Elimination Tool:

55 / 100

Category: Biology Ch 13 Class 11

Chest cavity is bounded by ribs and muscles on the sides, while the floor of chest cavity is called:

NUMS 2015
Biology
Gaseous Exchange
Elimination Tool:

56 / 100

Category: Biology Ch 11 Class 11

Quantitative study of energy relationships in biological systems obeys.

57 / 100

Category: Biology Ch 13 Class 12

When resources gets scarce, the population growth?

PMC Practice 1
Biology
Man and His Environment
Elimination Tool:

58 / 100

Category: Biology Ch 9 Class 11

The simplest of all bryophytes are

59 / 100

Category: Biology Ch 10 Class 12

Analogous organs show

60 / 100

Category: Biology Ch 7 Class 11

Trypanosoma belongs to class:

NTS 2011
Biology
Kingdom Protista
Elimination Tool:

61 / 100

Category: Biology Ch 5 Class 12

Tails can be regenerated in:

NUMS 2015
Biology
Growth and Development
Elimination Tool:

62 / 100

Category: Biology Ch 6 Class 12

During DNA replication ______ attaches the fragment to the lagging strand.

NUMS 2019 Reconduct
Biology
Chromosomes and DNA
Elimination Tool:

63 / 100

Category: Biology Ch 9 Class 12

Treatment of hereditary disorders by gene manipulations is called:

NUMS 2016
Biology
Biotechnology
Elimination Tool:

64 / 100

Category: Biology Ch 10 Class 11

In some cases the blastomere can produce complete embryo the cleavage will be

65 / 100

Category: Biology Ch 3 Class 12

Maintenance of normal resting potential via movement of K+ inside the cell and na+ out is a/an _______ process.

66 / 100

Category: Biology Ch 1 Class 12

Sphincter muscle in urinary system present near the junction of:

NUMS 2019 Reconduct
Biology
Homeostasis
Elimination Tool:

67 / 100

Category: Biology Ch 10 Class 11

Which one of the following coelenterate is also called the Portuguese man of war?

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

68 / 100

Category: Biology Ch 10 Class 12

Who developed a theory of natural selection essentially identical to Darwin’s

69 / 100

Category: Biology Ch 1 Class 12

Which excretory product in produced in plants during autotrophic mode of life?

70 / 100

Category: Biology

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS Mock 4
Chemistry
Aldehydes and Ketones

71 / 100

Category: Biology

Q.25  The substrate of the trypsin is:

72 / 100

Category: Biology Ch 5 Class 11

DNA or RNA of viruses is enclosed in ______ coat:

73 / 100

Category: Biology Ch 9 Class 12

Cloning is the production of genetically identical copies of organisms/cells by:

NUMS 2015
Biology
Biotechnology
Elimination Tool:

74 / 100

Category: Biology Ch 3 Class 12

How many meninges cover the human brain?

NTS 2014
Biology
Coordination and Control
Elimination Tool:

75 / 100

Category: Biology

Which type of protein structure contains the three dimensional structure?

NUMS Mock 3
Biology
Biological Molecules

76 / 100

Category: Biology Ch 5 Class 11

The size of poxvirus is:

77 / 100

Category: Biology Ch 10 Class 11

Of the following which one is not the characteristic of triploblasts.

78 / 100

Category: Biology Ch 4 Class 11

Whone is not the function of endoplasmic reticulum?

79 / 100

Category: Biology Ch 9 Class 12

The enzyme which seals the foreign DNA into the vector is

80 / 100

Category: Biology Ch 12 Class 12

Which statement about hydrospheric ecosystem is incorrect?

81 / 100

Category: Biology Ch 10 Class 12

Which of the following theories or evolution can best explain the vestigial organs.

NUMS 2014
Biology
Evolution
Elimination Tool:

82 / 100

Category: Biology

Q.58 Which of the following is incorrect for ascent of sap?

83 / 100

Category: Biology Ch 8 Class 11

The Fungal Cell wall contains:

NUMS 2018
Biology
Kingdom Fungi
Elimination Tool:

84 / 100

Category: Biology Ch 5 Class 11

Which of the following organisms have Chitin as a major structural component of their cell wall:

85 / 100

Category: Biology Ch 4 Class 12

Which one of the following represents the changes that occur in the ovary and the uterus approximately every 28 days involving ovulation with the breakdown and loss of the lining of the uterus?

PMC 2020
Biology
Reproduction
Elimination Tool:

86 / 100

Category: Biology

Q45 During birth which of following act as birth canal?

87 / 100

Category: Biology Ch 3 Class 11

If we add more substrate to an already occurring enzymatic reaction and it has no affect on the rate of reaction, the process is called?

PMC Practice 2
Biology
Enzymes
Elimination Tool:

88 / 100

Category: Biology Ch 9 Class 12

Recombinant DNA contains DNA from

89 / 100

Category: Biology Ch 10 Class 11

Among invertebrates, which possesses the greatest power of regeneration?

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

90 / 100

Category: Biology Ch 2 Class 12

Which of the following animal has a hydrostatic skeleton:

91 / 100

Category: Biology Ch 9 Class 11

The most successful land adapting plants are:

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

92 / 100

Category: Biology Ch 5 Class 11

Diseases in living organisms which are caused by parasites are called:

NUMS 2016
Biology
Bio-diversity | Variety of Life
Elimination Tool:

93 / 100

Category: Biology Ch 6 Class 11

Purple non-sulphur bacteria is an example of which of the following?

PMC Practice 2
Biology
Kingdom Prokaryote
Elimination Tool:

94 / 100

Category: Biology Ch 5 Class 12

Secondary growth is actually

95 / 100

Category: Biology

The term “Loss of appetite” refers to disease:

NUMS Mock 3
Biology
Nutrition

96 / 100

Category: Biology

Q.67 The animals which belong to division Radiata is/are?

97 / 100

Category: Biology

Mutations can occur in:

NUMS Mock 4
Biology
Chromosomes and DNA

98 / 100

Category: Biology

Digestion of which food components starts from the oral cavity?

NUMS Mock 3
Biology
Nutrition

99 / 100

Category: Biology Ch 2 Class 12

Scapula is the bone of the:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

100 / 100

Category: Biology Ch 2 Class 12

Which one of the following are “myogenic” type of muscles?

PMC 2020
Biology
Support and Movement
Elimination Tool:

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The average score is 59%

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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 3 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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