Biology Practice Test 4




Biology Practice Test 4

Biology Practice Test 4 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 human anatomy, physiology, microbiology, and ecology, helping students improve accuracy and retention.

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Biology Practice Test 4

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1 / 100

Category: Biology Ch 8 Class 12

Haemophilia occurs because of:

PMC 2020
Biology
Variation and Genetics
Elimination Tool:

2 / 100

Category: Biology

The thickest chamber of the human heart is:

NUMS Mock 4
Biology
Transport

3 / 100

Category: Biology

Q.17 Final acceptor of electrons in respiratory chain is?

4 / 100

Category: Biology Ch 3 Class 12

Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering:

5 / 100

Category: Biology

Q.65 Which one of the following is the attribute of Lamarckism?

6 / 100

Category: Biology

The inhibitor which closely resembles the substrate in its molecular structure and inhibits the enzyme activity by binding to the active site of the enzyme is called:

NUMS Mock 4
Biology
Enzymes

7 / 100

Category: Biology Ch 5 Class 12

Turner’s syndrome is characterized by having:

UHS 2015
Biology
Growth and Development
Elimination Tool:

8 / 100

Category: Biology Ch 6 Class 11

Which of the following bacteria are without a cell wall?

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

9 / 100

Category: Biology

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

NUMS Mock 4
Biology
Gaseous Exchange

10 / 100

Category: Biology

Bones of the skull are joined by:

NUMS Mock 2
Biology
Support and Movement

11 / 100

Category: Biology Ch 14 Class 11

Choose the correct pathway for the flow of blood:

NUMS 2020
Biology
Transport
Elimination Tool:

12 / 100

Category: Biology

Q.26 Most carbon dioxide is transported in the form of:

13 / 100

Category: Biology Ch 3 Class 12

Type of neurons found exclusively in CNS are:

14 / 100

Category: Biology Ch 3 Class 12

Which body function is controlled through a positive feedback mechanism?

PMC 2020
Biology
Coordination and Control
Elimination Tool:

15 / 100

Category: Biology Ch 6 Class 11

Which of the following structure provides greater pathogenicity to the bacteria?

16 / 100

Category: Biology Ch 13 Class 12

Hydroelectricity is generated by using ______ of falling water.

17 / 100

Category: Biology Ch 3 Class 11

Inactive enzyme precursors such as pepsinogen for pepsin are called as:

PMC Practice 1
Biology
Enzymes
Elimination Tool:

18 / 100

Category: Biology Ch 11 Class 11

How does chemosynthesis differ from photosynthesis?

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

19 / 100

Category: Biology Ch 3 Class 11

The pH at which the activity of pancreatic lipase enzyme is maximum is:

NUMS 2019 Cancelled
Biology
Enzymes
Elimination Tool:

20 / 100

Category: Biology

Q.19 Sm0oth endoplasmic reticulum is abundant in which types of cells?

21 / 100

Category: Biology Ch 5 Class 11

It is very stable and allows viruses to exist in water, air, and the ground.

PMC Sample 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

22 / 100

Category: Biology Ch 6 Class 11

The function of a cell wall in prokaryotes is:

PMC Practice 1
Biology
Kingdom Prokaryote
Elimination Tool:

23 / 100

Category: Biology

Which of the following statements are true for mitochondria and chloroplasts?

A. ATP synthesis is seen in both
B. Outer membrane has more surface area in both
C. Circular naked DNA, RNA, and 70 ribosomes are seen in both
D. Oxidative phosphorylation occurs in both

NUMS Mock 4
Biology
Cell Structure and Function

24 / 100

Category: Biology Ch 6 Class 12

Histones have abundance of amino acids

25 / 100

Category: Biology

Q.51 Which of the following is the respiratory surface in human beings?

26 / 100

Category: Biology

The animals that feed on organic debris from decomposing plants and animals are called:

NUMS Mock 1
Biology
Man and His Environment

27 / 100

Category: Biology

Q.20 Which of the following bacteria possesses a sphericatshape?

28 / 100

Category: Biology Ch 5 Class 11

Encircle the miss – match:

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

29 / 100

Category: Biology

Q.63 What event occurs in the menstrual cycle when the level of progesterone declines?

30 / 100

Category: Biology Ch 3 Class 12

Gibberellins may be substituted for _____ light, therefore promote flowering in long day plants.

31 / 100

Category: Biology

The rate of photosynthesis and respiration may equal one another at what time?

NUMS Mock 4
Biology
Bioenergetics

32 / 100

Category: Biology Ch 5 Class 11

Whenever a virus encounters an unfamiliar organism, the virus may undergo multiple mutations and emerge as a variant that produces:

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

33 / 100

Category: Biology Ch 11 Class 11

Dark reaction of photosynthesis takes place in _______ of chloroplast.

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

34 / 100

Category: Biology Ch 10 Class 11

Exoskeleton of cockroach is made up of:

NUMS 2017
Biology
Kingdom Animalia
Elimination Tool:

35 / 100

Category: Biology

Q.21 The spent energy in the form pf ADP is regeneratèd by mitochondria into which of the following forni?

36 / 100

Category: Biology Ch 1 Class 11

In animals coordination is achieved by means of

37 / 100

Category: Biology Ch 8 Class 12

The law of dominance is illustrated in the garden pea by:

NTS 2010
Biology
Variation and Genetics
Elimination Tool:

38 / 100

Category: Biology

The following statements are about enzymes:

1. They are globular proteins

2. They can be inhibited by competitive inhibitors

3. They are formed in the smooth endoplasmic reticulum

4. There are only found attached to Plasma membranes in the cell

Which statements are correct for all enzymes?

NUMS Mock 3
Biology
Enzymes

39 / 100

Category: Biology Ch 9 Class 12

The technique use of identification of criminals is called:

NTS 2018
Biology
Biotechnology
Elimination Tool:

40 / 100

Category: Biology

Q.2 Prokaryotic and eukaryotic cells generally have which of the following features in common?

41 / 100

Category: Biology Ch 7 Class 12

Gametes are produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

42 / 100

Category: Biology

What type of virus is the smallpox virus?

NUMS Mock 1
Biology
Bio-diversity | Variety of Life

43 / 100

Category: Biology Ch 13 Class 11

In most birds air sacs are _____ in number

44 / 100

Category: Biology Ch 7 Class 12

Failure of separation of sister chromatids is called:

NUMS 2020
Biology
Cell Cycle
Elimination Tool:

45 / 100

Category: Biology Ch 5 Class 12

The condition due to loss of appetite for food is termed as:

NTS 2016 DUHS & JSMU
Biology
Growth and Development
Elimination Tool:

46 / 100

Category: Biology Ch 5 Class 11

These viruses usually occur in two structural forms:

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

47 / 100

Category: Biology

Q.6 The uterus of the female reproductive system opens into the?

48 / 100

Category: Biology Ch 6 Class 12

Genetic information in the DNA is encoded as:

NTS 2018
Biology
Chromosomes and DNA
Elimination Tool:

49 / 100

Category: Biology

Which of the following is not a vestigial organ of man?

NUMS Mock 1
Biology
Evolution

50 / 100

Category: Biology Ch 13 Class 11

Diaphragm is a sheet of:

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Elimination Tool:

51 / 100

Category: Biology Ch 4 Class 11

Which of the statement about cell membrane is not true?

52 / 100

Category: Biology Ch 12 Class 12

Productivity of an ecosystem is indicated by

53 / 100

Category: Biology Ch 4 Class 12

In asexual reproduction offspring are produced by which of the following?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

54 / 100

Category: Biology Ch 3 Class 12

The nerve center for sight is located in the

NUMS 2014
Biology
Coordination and Control
Elimination Tool:

55 / 100

Category: Biology Ch 9 Class 11

In plants chlorosis is caused by the deficiency of:

PMC Sample 3
Biology
Kingdom Plantae
Elimination Tool:

56 / 100

Category: Biology Ch 5 Class 11

Five kingdom classification was proposed by :

57 / 100

Category: Biology Ch 3 Class 12

The phytohormones controlling the plant movements are?

NTS 2015 SMBBMC
Biology
Coordination and Control
Elimination Tool:

58 / 100

Category: Biology Ch 5 Class 11

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

59 / 100

Category: Biology Ch 4 Class 12

Testes are structures that produce:

NTS 2015 SMBBMC
Biology
Reproduction
Elimination Tool:

60 / 100

Category: Biology Ch 13 Class 12

The productivity of aquatic ecosystem is determined by:

NUMS 2016
Biology
Man and His Environment
Elimination Tool:

61 / 100

Category: Biology Ch 6 Class 11

Bacterial pilli help in:

NTS 2011
Biology
Kingdom Prokaryote
Elimination Tool:

62 / 100

Category: Biology Ch 2 Class 12

Bones of the skull are joined by:

NTS 2011
Biology
Support and Movement
Elimination Tool:

63 / 100

Category: Biology Ch 2 Class 11

Which of these is not a disaccharide?

NUMS 2018
Biology
Biological Molecules
Elimination Tool:

64 / 100

Category: Biology Ch 6 Class 11

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

65 / 100

Category: Biology Ch 7 Class 12

Microtubules are composed of

66 / 100

Category: Biology Ch 12 Class 11

_____ is activated to ______ by enterokinase / enteropeptidase enzyme secreted the lining of duodenum:

NUMS 2019 Cancelled
Biology
Nutrition
Elimination Tool:

67 / 100

Category: Biology

The excretion of hypertonic urine in humans is associated best with the:

NUMS Mock 1
Biology
Homeostasis

68 / 100

Category: Biology Ch 9 Class 11

Prosopis glandulosa is the botanical name of _______.

NTS 2016 SMBBMC
Biology
Kingdom Plantae
Elimination Tool:

69 / 100

Category: Biology Ch 11 Class 11

In the Krebs cycle, substrate-level phosphorylation accompanies the formation of:

NTS 2013
Biology
Bioenergetics
Elimination Tool:

70 / 100

Category: Biology Ch 4 Class 11

Which of the following is not a basic unit of the cell?

NUMS 2016
Biology
Cell Structure and Function
Elimination Tool:

71 / 100

Category: Biology Ch 6 Class 11

In which of the following phases of bacterial growth, is the death rate more rapid than the multiplication rate?

NTS 2016 SMBBMC
Biology
Kingdom Prokaryote
Elimination Tool:

72 / 100

Category: Biology

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

NUMS Mock 3
Biology
Variation and Genetics

73 / 100

Category: Biology Ch 3 Class 11

Which statement about enzyme is incorrect:

74 / 100

Category: Biology Ch 5 Class 11

Viruses are ______ smaller than bacteria

75 / 100

Category: Biology Ch 3 Class 11

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

NTS 2013
Biology
Enzymes
Elimination Tool:

76 / 100

Category: Biology

Which of the following RNA sequences would be transcribed from the DNA sequence ATGGCTAGGAC?

NUMS Mock 4
Biology
Chromosomes and DNA

77 / 100

Category: Biology Ch 2 Class 11

Carbon atom is

78 / 100

Category: Biology Ch 6 Class 12

Mutations can occur in:

NUMS 2016
Biology
Chromosomes and DNA
Elimination Tool:

79 / 100

Category: Biology

Q.63  Ozone depletion is commonly caused by:

80 / 100

Category: Biology Ch 10 Class 12

Key point to Lamarck’s view about organic evolution is that every offspring

NUMS 2014
Biology
Evolution
Elimination Tool:

81 / 100

Category: Biology Ch 8 Class 12

In which of the following cases, genotypic and phenotypic ratio will remain same in F2 generation

82 / 100

Category: Biology Ch 5 Class 12

A bean seed contains all of the following except:

NTS 2012
Biology
Growth and Development
Elimination Tool:

83 / 100

Category: Biology Ch 2 Class 11

Peptide bonds are formed between:

NUMS 2014
Biology
Biological Molecules
Elimination Tool:

84 / 100

Category: Biology Ch 2 Class 11

A complex substance which on hydrolysis yields polyhydroxy aldehyde or ketone subunits is called:

85 / 100

Category: Biology Ch 2 Class 11

Which of the statement is not true for compounds like glycoprotein and glycolipids?

86 / 100

Category: Biology

Which of the following processes does NOT need Pyruvic Acid as a substrate?

NUMS Mock 2
Biology
Bioenergetics

87 / 100

Category: Biology Ch 3 Class 11

Lock and Key Model for enzyme action propose by Emil Fischer suggests that:

PMC 2020
Biology
Enzymes
Elimination Tool:

88 / 100

Category: Biology Ch 14 Class 11

Regarding structure of the human heart, Chordae Tendinae are present in:

PMC 2020
Biology
Transport
Elimination Tool:

89 / 100

Category: Biology Ch 4 Class 11

Strengthening material of prokaryotic cell wall is

90 / 100

Category: Biology Ch 10 Class 11

Species of phylum Platyhelminthes are:

NTS 2011
Biology
Kingdom Animalia
Elimination Tool:

91 / 100

Category: Biology Ch 5 Class 12

Sertoli cells

92 / 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:

93 / 100

Category: Biology Ch 1 Class 12

Rose is an example of

94 / 100

Category: Biology Ch 12 Class 12

Ecosystem of Shogran is

95 / 100

Category: Biology Ch 9 Class 11

The simplest of all bryophytes are

96 / 100

Category: Biology Ch 7 Class 11

Cysts are not resistant to ______ but spores are:

NUMS 2020
Biology
Kingdom Protista
Elimination Tool:

97 / 100

Category: Biology Ch 7 Class 11

Sleeping sickness in humans is caused by:

UHS 2013
Biology
Kingdom Protista
Elimination Tool:

98 / 100

Category: Biology Ch 14 Class 11

The causes of Cyanosis include:

NTS 2010
Biology
Transport
Elimination Tool:

99 / 100

Category: Biology Ch 3 Class 11

Due to the similarity of structure, competitive inhibitors may be selected by the _______ site.

NUMS 2019 Reconduct
Biology
Enzymes
Elimination Tool:

100 / 100

Category: Biology Ch 6 Class 11

The shape of Cocci bacteria is:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

Your score is

The average score is 61%

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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 4 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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Comments

3 responses to “Biology Practice Test 4”

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  2. Anonymous

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