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 7 Class 11

Symptoms of malaria occur specifically due to the formation of:

NUMS 2015
Biology
Kingdom Protista
Elimination Tool:

2 / 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:

3 / 100

Category: Biology Ch 12 Class 12

Which statement about hydrospheric ecosystem is incorrect?

4 / 100

Category: Biology Ch 14 Class 11

The main cause of creation of tension between water molecules is ______ which helps to make water chains pulled up xylem sap.

NUMS 2019 Reconduct
Biology
Transport
Elimination Tool:

5 / 100

Category: Biology

Q.57 Which of the following is paired correctly?

6 / 100

Category: Biology Ch 6 Class 11

Rod-shaped bacteria are known as:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

7 / 100

Category: Biology

The best function of coelom is described as ____.

NUMS Mock 1
Biology
Kingdom Animalia

8 / 100

Category: Biology Ch 12 Class 12

Productivity of an ecosystem is indicated by

9 / 100

Category: Biology Ch 7 Class 11

It is the smallest eukaryote:

NUMS 2017
Biology
Kingdom Protista
Elimination Tool:

10 / 100

Category: Biology Ch 9 Class 12

Transgenic organisms:

PMC 2020
Biology
Biotechnology
Elimination Tool:

11 / 100

Category: Biology Ch 13 Class 11

Pharynx leads air into _____ through glottis.

NTS 2012
Biology
Gaseous Exchange
Elimination Tool:

12 / 100

Category: Biology

Lymph nodes are not present:

NUMS Mock 1
Biology
Coordination and Control

13 / 100

Category: Biology Ch 11 Class 11

How does chemosynthesis differ from photosynthesis?

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

14 / 100

Category: Biology Ch 6 Class 12

The true E.Coli replicating enzyme is

15 / 100

Category: Biology Ch 10 Class 12

The organs which are similar in function but differ in structure are called:

PMC 2020
Biology
Evolution
Elimination Tool:

16 / 100

Category: Biology

An enzyme that helps in the conversion of RNA to DNA is called:

NUMS Mock 3
Biology
Chromosomes and DNA

17 / 100

Category: Biology Ch 9 Class 12

DNA made by joining pieces from two or more different sources:

UHS 2018
Biology
Biotechnology
Elimination Tool:

18 / 100

Category: Biology Ch 9 Class 12

Lambda phage is

19 / 100

Category: Biology Ch 6 Class 11

The shape of Cocci bacteria is:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

20 / 100

Category: Biology Ch 9 Class 12

A technique in transgenic animals in which desired gene is inserted into the eggs of animal is called:

UHS 2015
Biology
Biotechnology
Elimination Tool:

21 / 100

Category: Biology Ch 3 Class 12

The directional movement toward or away from the stimulus is called:

PMC 2020
Biology
Coordination and Control
Elimination Tool:

22 / 100

Category: Biology Ch 5 Class 11

The word which E-Chatton suggested for bacteria and blue green algae was:

23 / 100

Category: Biology Ch 10 Class 11

Leptocardii is a group of:

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

24 / 100

Category: Biology Ch 1 Class 12

Malpighian tubules are involved in excretion in:

NTS 2011
Biology
Homeostasis
Elimination Tool:

25 / 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?

26 / 100

Category: Biology Ch 6 Class 11

Cyanobacteria help in nitrogen fixation because they have:

PMC 2021 Tested
Biology
Kingdom Prokaryote
Elimination Tool:

27 / 100

Category: Biology Ch 13 Class 12

Tides are caused by

28 / 100

Category: Biology

Q40 How is pyruvate produced in anaerobic conditions?

29 / 100

Category: Biology

As pH of blood decreases, H+ ions increases, which combine the proteins part of hemoglobin, to decrease its ability to bind with:

NUMS Mock 2
Biology
Gaseous Exchange

30 / 100

Category: Biology

Q.61 Herbivores always occupy :

31 / 100

Category: Biology

Optimum pH for action of pepsin and salivary amylase is

NUMS Mock 2
Biology
Nutrition

32 / 100

Category: Biology Ch 3 Class 11

What is not true about the induced fit model:

NUMS 2018
Biology
Enzymes
Elimination Tool:

B

33 / 100

Category: Biology Ch 5 Class 11

Where can viruses replicate?

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

34 / 100

Category: Biology Ch 2 Class 11

Which of the following has the ability to develop ester linkage with the OH group of Pentose sugar?

NUMS 2017
Biology
Biological Molecules
Elimination Tool:

35 / 100

Category: Biology Ch 10 Class 11

Of the following which one is not found in series proterostomia.

36 / 100

Category: Biology Ch 2 Class 11

Which of the following is the constituent of RNA molecule?

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

37 / 100

Category: Biology Ch 10 Class 11

Which of the following phylum and its examples is NOT correct?

NUMS 2017
Biology
Kingdom Animalia
Elimination Tool:

38 / 100

Category: Biology Ch 1 Class 12

The mechanism by which substances are removed from the blood and are directly added to the tubular fluids is called:

NUMS 2018
Biology
Homeostasis
Elimination Tool:

39 / 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:

40 / 100

Category: Biology Ch 12 Class 11

Ileum is about ______ long:

NTS 2010
Biology
Nutrition
Elimination Tool:

41 / 100

Category: Biology Ch 7 Class 11

Which of the following statements is correct?

NUMS 2017
Biology
Kingdom Protista
Elimination Tool:

42 / 100

Category: Biology

The system responsible for fighting the pathogens is:

NUMS Mock 4
Biology
Transport

43 / 100

Category: Biology Ch 11 Class 11

Which of the following light is least absorbed by the plants:

44 / 100

Category: Biology Ch 7 Class 12

Exchange of segments between homologous chromosomes is called:

UHS 2012
Biology
Cell Cycle
Elimination Tool:

45 / 100

Category: Biology Ch 4 Class 11

70S sized ribosomes are found in the cytoplasm of:

PMC 2020
Biology
Cell Structure and Function
Elimination Tool:

46 / 100

Category: Biology Ch 9 Class 11

Red algae do not contribute towards:

PMC 2020
Biology
Kingdom Plantae
Elimination Tool:

47 / 100

Category: Biology Ch 12 Class 11

A part of the digestive system that is not in contact with food is the:

NTS 2017
Biology
Nutrition
Elimination Tool:

48 / 100

Category: Biology Ch 11 Class 11

In paper chromatography xanthophyll will give ______ color:

NTS 2010
Biology
Bioenergetics
Elimination Tool:

49 / 100

Category: Biology Ch 7 Class 12

Failure of separation of sister chromatids is called:

NUMS 2020
Biology
Cell Cycle
Elimination Tool:

50 / 100

Category: Biology

Q31 What happens during muscle contraction to the length of each myosin and actin filament?

51 / 100

Category: Biology Ch 6 Class 12

The genotype of a normal male in humans is ______ chromosomes.

NTS 2012
Biology
Chromosomes and DNA
Elimination Tool:

52 / 100

Category: Biology Ch 12 Class 12

One of the most important cause of desertification is

53 / 100

Category: Biology Ch 7 Class 11

Of the following which one has glassy shells?

54 / 100

Category: Biology Ch 10 Class 12

Genetic equilibrium is a:

NTS 2019
Biology
Evolution
Elimination Tool:

55 / 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:

56 / 100

Category: Biology

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?

NUMS Mock 2
Biology
Biological Molecules

57 / 100

Category: Biology Ch 9 Class 11

The term which is not related to the process of evolution of leaf is:

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

58 / 100

Category: Biology Ch 13 Class 11

The voice box leads to the trachea which is also called

PMC Practice 1
Biology
Gaseous Exchange
Elimination Tool:

59 / 100

Category: Biology Ch 7 Class 12

Crossing over is an exchange of genes between _______ resulting in a mixture of parental characteristics in offspring.

NTS 2019
Biology
Cell Cycle
Elimination Tool:

60 / 100

Category: Biology Ch 3 Class 12

Normal action potential of a neuronal cell is :

 

61 / 100

Category: Biology Ch 3 Class 11

Optimum temperature for enzymes of human body is:

NUMS 2018
Biology
Enzymes
Elimination Tool:

62 / 100

Category: Biology Ch 7 Class 11

Radiolarians belong to which of the following protozoal group?

63 / 100

Category: Biology Ch 9 Class 12

Golden rice is a promising transgenic crop. When released for cultivation, it will help in

PMC Practice 11
Biology
Biotechnology
Elimination Tool:

64 / 100

Category: Biology

Q.36 The retinal is important for___________ of human

65 / 100

Category: Biology Ch 4 Class 11

Magnifying power of electron microscope as compared to eye is

66 / 100

Category: Biology

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

NUMS Mock 4
Chemistry
Aldehydes and Ketones

67 / 100

Category: Biology Ch 6 Class 11

Which of the following statements about the systemic effect of bacterial cells is true?

PMC Practice 3
Biology
Kingdom Prokaryote
Elimination Tool:

68 / 100

Category: Biology Ch 7 Class 11

Chalk is gradually formed of dead

 

69 / 100

Category: Biology Ch 6 Class 11

Which of the following is not a sterilization method for the control of bacteria?

PMC Practice 4
Biology
Kingdom Prokaryote
Elimination Tool:

70 / 100

Category: Biology Ch 10 Class 11

Among invertebrates, which possesses the greatest power of regeneration?

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

71 / 100

Category: Biology Ch 12 Class 12

In polluted lake which organisms dominate the community

72 / 100

Category: Biology Ch 13 Class 12

In oceans of tropical regions

73 / 100

Category: Biology Ch 3 Class 12

Which brain portion is responsible for controlling body coordination?

NUMS 2020
Biology
Coordination and Control
Elimination Tool:

74 / 100

Category: Biology Ch 3 Class 12

Which of the following is not secreted by thyroid gland?

NTS 2015 SMBBMC
Biology
Coordination and Control
Elimination Tool:

75 / 100

Category: Biology

Q.65 How are flat worms not similar to round worms?

76 / 100

Category: Biology Ch 11 Class 12

The biosphere covers about

77 / 100

Category: Biology Ch 13 Class 12

Endangered species are

78 / 100

Category: Biology Ch 5 Class 12

Germ layers are formed in which stage of development?

NUMS 2020
Biology
Growth and Development
Elimination Tool:

79 / 100

Category: Biology Ch 6 Class 11

Which of the following is not a component of extracellular matrix in bacteria?

NUMS 2015
Biology
Kingdom Prokaryote
Elimination Tool:

80 / 100

Category: Biology Ch 8 Class 11

Fungi which cause thrush in humans:

UHS 2013
Biology
Kingdom Fungi
Elimination Tool:

81 / 100

Category: Biology Ch 9 Class 12

Which of the following is the manipulation of genetic material for practical purposes?

NTS 2018
Biology
Biotechnology
Elimination Tool:

82 / 100

Category: Biology Ch 13 Class 11

Booklungs serve the function of respiration in:

NTS 2014
Biology
Gaseous Exchange
Elimination Tool:

83 / 100

Category: Biology Ch 5 Class 12

Meristems are of

84 / 100

Category: Biology Ch 6 Class 11

The first bacterium isolated was

85 / 100

Category: Biology Ch 3 Class 12

Which type of sensory structures carry deep pressure and vibration sensations?

86 / 100

Category: Biology Ch 5 Class 12

In plants growth is of

87 / 100

Category: Biology Ch 13 Class 12

Grassland of Argentina is:

NUMS 2015
Biology
Man and His Environment
Elimination Tool:

88 / 100

Category: Biology

Q.39   The fertilization of ovum takes place at:

89 / 100

Category: Biology Ch 5 Class 11

The genome of the virus includes the:

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

90 / 100

Category: Biology Ch 11 Class 11

Carbon dioxide joins the photosynthetic pathway at:

NTS 2018
Biology
Bioenergetics
Elimination Tool:

91 / 100

Category: Biology Ch 4 Class 12

Menstrual cycle can be divided into:

NUMS 2015
Biology
Reproduction
Elimination Tool:

92 / 100

Category: Biology Ch 8 Class 11

Root like structure in saprotrophic fungi are called

93 / 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:

94 / 100

Category: Biology Ch 8 Class 12

Which of the following does not belong to the same linkage group?

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

95 / 100

Category: Biology

DNA fingerprinting is basically done for:

NUMS Mock 1
Biology
Biotechnology

96 / 100

Category: Biology Ch 7 Class 12

Which of the following cells does not enter G0 phase?

NUMS 2020
Biology
Cell Cycle
Elimination Tool:

97 / 100

Category: Biology Ch 3 Class 11

Inhibitors which block the enzyme by forming weak bond are called

98 / 100

Category: Biology Ch 5 Class 11

Viruses resemble living things because they:

NTS 2017
Biology
Bio-diversity | Variety of Life
Elimination Tool:

99 / 100

Category: Biology Ch 7 Class 11

Pili are mainly found on certain species of:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

100 / 100

Category: Biology

Q.38 The cell organelles involved, in some cases, with extra-cellular digestion

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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”

  1. Thank

  2. Anonymous

    Hi

  3. Anonymous

    ok

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