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

In chemiosmosis, the proton (H+) moves from _______.

NUMS Mock 4
Biology
Bioenergetics

2 / 100

Category: Biology

Q.37  Which of the following neuron has a single long dendron?

3 / 100

Category: Biology

The hormone which controls the uptake of Sodium ions in kidney and its maintenance in blood plasma is:

NUMS Mock 2
Biology
Coordination and Control

4 / 100

Category: Biology Ch 3 Class 12

_________ is sometimes given by injection as an emergency treatment in cardiac arrest:

NUMS 2020
Biology
Coordination and Control
Elimination Tool:

5 / 100

Category: Biology

Q.57 Electron transport chain pumps protons across the membrane from __________ to ____________.

6 / 100

Category: Biology

Which of the following, which is the incorrectly paired one?

NUMS Mock 2
Biology
Biology and its Major Fields of Specialization

7 / 100

Category: Biology Ch 7 Class 12

Meiosis occurs at the time of

8 / 100

Category: Biology Ch 1 Class 12

Urine formation is the result of:

NTS 2015 SMBBMC
Biology
Homeostasis
Elimination Tool:

9 / 100

Category: Biology

Four events in the transmission of nerve impulses across synapses are:

I. depolarisation of the presynaptic membrane

II. propagation of postsynaptic action potential

III. reabsorption of the transmitter substance

IV. release of transmitter substance into the synaptic cleft

In which sequence do these events occur?

FIRST -> LAST

NUMS Mock 3
Biology
Coordination and Control

10 / 100

Category: Biology Ch 10 Class 11

In most triploblasts after embryonic development the three layers are represented as

11 / 100

Category: Biology

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

NUMS Mock 3
Biology
Biotechnology

12 / 100

Category: Biology Ch 8 Class 12

When phenotype of a heterozygote is in between the phenotypes of both the homozygous parents, it is called:

NUMS 2016
Biology
Variation and Genetics
Elimination Tool:

13 / 100

Category: Biology Ch 8 Class 12

Which of the following is monohybrid cross

14 / 100

Category: Biology Ch 8 Class 11

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

NUMS 2019 Reconduct
Biology
Kingdom Fungi
Elimination Tool:

15 / 100

Category: Biology Ch 6 Class 11

Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch?

16 / 100

Category: Biology Ch 5 Class 12

Secondary growth is actually

17 / 100

Category: Biology Ch 5 Class 11

Eukaryotic, multicellular and consumers belong to ______ kingdom.

NUMS 2019 Reconduct
Biology
Bio-diversity | Variety of Life
Elimination Tool:

18 / 100

Category: Biology

Q.12 The least stable RNA present in the cell is:

19 / 100

Category: Biology

Q.68 Enzymes are globular proteins because

20 / 100

Category: Biology

Which vertebrae together are called pelvic vertebrae?

NUMS Mock 2
Biology
Support and Movement

21 / 100

Category: Biology Ch 10 Class 11

A characteristics features of Echinoderm is:

NTS 2011
Biology
Kingdom Animalia
Elimination Tool:

22 / 100

Category: Biology

Which type of protein structure contains the three dimensional structure?

NUMS Mock 3
Biology
Biological Molecules

23 / 100

Category: Biology Ch 6 Class 12

What will be the approximate length of a DNA strand having 500 nucleotides?

NUMS 2015
Biology
Chromosomes and DNA
Elimination Tool:

HIDE ELIMINATED OPTIONS

24 / 100

Category: Biology Ch 4 Class 12

Which of these cycles operate in human females?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

25 / 100

Category: Biology Ch 2 Class 12

Which of the following statement is incorrect about Molluscans?

26 / 100

Category: Biology

Q.2 Competitive inhibition can be overcome by using

27 / 100

Category: Biology Ch 2 Class 12

How many metacarpals are present In the hand?

NTS 2013
Biology
Support and Movement
Elimination Tool:

28 / 100

Category: Biology Ch 9 Class 11

Antheridiophore and archegoniophore are found in

29 / 100

Category: Biology

In human gut, chylomicrons are formed by the combination of:

NUMS Mock 1
Biology
Nutrition

30 / 100

Category: Biology Ch 6 Class 11

Rod-shaped bacteria are known as _______

UHS 2018
Biology
Kingdom Prokaryote
Elimination Tool:

31 / 100

Category: Biology Ch 1 Class 12

Glomerulus in kidneys is made up of:

NUMS 2019 Reconduct
Biology
Homeostasis
Elimination Tool:

32 / 100

Category: Biology

Major coordinating centre for sensory and motor signaling is:

NUMS Mock 3
Biology
Coordination and Control

33 / 100

Category: Biology Ch 7 Class 11

The only group of algae having no flagellated motile cells at any stage is :

34 / 100

Category: Biology Ch 6 Class 12

Phenotype is:

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

35 / 100

Category: Biology Ch 1 Class 12

The disease in which patients passed urine that rapidly turned black on exposure to air is called:

NTS 2011
Biology
Homeostasis
Elimination Tool:

36 / 100

Category: Biology Ch 6 Class 11

The process of recombination in prokaryotes takes place in which of the following ways?

PMC Sample 2
Biology
Kingdom Prokaryote
Elimination Tool:

37 / 100

Category: Biology

An activated enzyme made of polypeptide chain and a cofactor is?

NUMS Mock 3
Biology
Enzymes

38 / 100

Category: Biology

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

39 / 100

Category: Biology

Q.41 The period during which a girl sexually matures is called

40 / 100

Category: Biology Ch 12 Class 12

Mountains of Koh Hindukush come under

41 / 100

Category: Biology Ch 3 Class 11

In enzymatic mechanism, the substrate bind to the enzyme active site to produce?

PMC Practice 3
Biology
Enzymes
Elimination Tool:

42 / 100

Category: Biology Ch 8 Class 11

Antibiotics are produced by fungi and certain bacteria of group:

UHS 2013
Biology
Kingdom Fungi
Elimination Tool:

43 / 100

Category: Biology Ch 9 Class 11

Which of the following statement about plants is incorrect?

44 / 100

Category: Biology

Q.59 NADH produced during glycolysis and Krebs cycle will oxidized by:

45 / 100

Category: Biology Ch 3 Class 11

The optimum pH for the enzyme arginase is which of the following?

PMC Sample 2
Biology
Enzymes
Elimination Tool:

46 / 100

Category: Biology Ch 4 Class 12

Hydra reproduces asexually by:

NUMS 2014
Biology
Reproduction
Elimination Tool:

47 / 100

Category: Biology Ch 11 Class 11

Which of the following pigment is Blue- green in colour:

48 / 100

Category: Biology Ch 6 Class 11

When were bacteriophages discovered by Twort?

PMC Practice 5
Biology
Kingdom Prokaryote
Elimination Tool:

49 / 100

Category: Biology Ch 7 Class 12

Process of uncontrolled cell division is due to which one of the following reasons?

NUMS 2018
Biology
Cell Cycle
Elimination Tool:

50 / 100

Category: Biology Ch 4 Class 12

Male and female sea urchins release their sperm and eggs Into the water where fertilization takes place. How can their reproduction be described?

NTS 2013
Biology
Reproduction
Elimination Tool:

51 / 100

Category: Biology Ch 2 Class 11

Most simple amino acid is:

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

52 / 100

Category: Biology Ch 4 Class 11

Magnifying power of electron microscope as compared to eye is

53 / 100

Category: Biology Ch 10 Class 11

The function of coelom is

54 / 100

Category: Biology Ch 10 Class 11

Which one of following is a true fish?

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

55 / 100

Category: Biology Ch 1 Class 12

The only possible treatment in end stage renal failure is:

NUMS 2018
Biology
Homeostasis
Elimination Tool:

56 / 100

Category: Biology Ch 13 Class 11

Pharynx leads air into _____ through glottis.

NTS 2012
Biology
Gaseous Exchange
Elimination Tool:

57 / 100

Category: Biology Ch 12 Class 12

In which zone plant community is most diverse

58 / 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:

59 / 100

Category: Biology Ch 10 Class 11

The simplest form in Kingdom Animalia belongs to:

NUMS 2018
Biology
Kingdom Animalia
Elimination Tool:

60 / 100

Category: Biology Ch 10 Class 12

Which of the following scientists contributed a lot to “modern synthetic theory of organic evolution:

NUMS 2014
Biology
Evolution
Elimination Tool:

61 / 100

Category: Biology Ch 3 Class 11

If the non-protien part is loosely attached to the protein part in the enzyme, it is known as ______.

PMC Practice 3
Biology
Enzymes
Elimination Tool:

62 / 100

Category: Biology

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

63 / 100

Category: Biology Ch 5 Class 12

In multicellular plants cell division occur by

64 / 100

Category: Biology Ch 8 Class 12

To check the homozygosity or heterozygosity of apparently dominant trait, we do the test cross by crossing it with:

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

65 / 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

66 / 100

Category: Biology Ch 10 Class 12

Modification in the organization of the basic pentadactyl limb structure found in vertebrates provides good evidence for the principle of:

NUMS 2020
Biology
Evolution
Elimination Tool:

67 / 100

Category: Biology Ch 14 Class 11

Arteriosclerosis is:

NUMS 2016
Biology
Transport
Elimination Tool:

68 / 100

Category: Biology Ch 12 Class 11

Magnesium is present in which of the following?

69 / 100

Category: Biology

Which valve action results from an increase in pressure in the ventricles of the heart?

NUMS Mock 3
Biology
Transport

70 / 100

Category: Biology Ch 2 Class 11

Ribosomes are composed of almost an equal amount of:

NUMS 2018
Biology
Biological Molecules
Elimination Tool:

71 / 100

Category: Biology Ch 9 Class 12

Which one has antibiotic resistance gene for tetracycline and ampicillin?

72 / 100

Category: Biology

Q.10 Synaptic vesicles discharge which hormone at the neuromuscular junction?

73 / 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:

74 / 100

Category: Biology Ch 10 Class 12

In the Hardy – Weinberg principle,p2 + 2pq + q2= ?

NTS 2016 SMBBMC
Biology
Evolution
Elimination Tool:

75 / 100

Category: Biology Ch 6 Class 11

The first bacterium isolated was

76 / 100

Category: Biology Ch 13 Class 11

The blood enters the _____ side of heart

77 / 100

Category: Biology Ch 8 Class 12

The type of gene interaction in which the effect caused by a gene at one locus interfere with the effect caused by another gene at another locus is known as:

NUMS 2018
Biology
Variation and Genetics
Elimination Tool:

78 / 100

Category: Biology Ch 13 Class 12

Process ensuring the survival of species over long periods of time, even though individual members of the species die.

UHS 2018
Biology
Man and His Environment
Elimination Tool:

79 / 100

Category: Biology

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

NUMS Mock 3
Biology
Variation and Genetics

80 / 100

Category: Biology Ch 7 Class 11

The nucleoid is found only in certain species of:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

81 / 100

Category: Biology Ch 6 Class 12

The biochemical analysis of a sample of DNA shows that 32% of the nitrogenous bases are cytosine. What is the total % of adenine and uracil in RNA transcribed from this DNA?

NTS 2015 SMBBMC
Biology
Chromosomes and DNA
Elimination Tool:

82 / 100

Category: Biology Ch 7 Class 11

Bacteria that can only survive in the presence of oxygen?

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

83 / 100

Category: Biology Ch 6 Class 11

Cyanobacteria help in nitrogen fixation because they have:

PMC 2021 Tested
Biology
Kingdom Prokaryote
Elimination Tool:

84 / 100

Category: Biology Ch 4 Class 11

The process of membrane fusion and the movement of material out of the cell, is called:

NTS 2016 SMBBMC
Biology
Cell Structure and Function
Elimination Tool:

85 / 100

Category: Biology Ch 13 Class 12

Total area of the world under cultivation is

 

86 / 100

Category: Biology Ch 2 Class 11

NAD is an example of:

PMC 2020
Biology
Biological Molecules
Elimination Tool:

87 / 100

Category: Biology

The structure of an enzyme is altered by which of the following inhibitors?

NUMS Mock 3
Biology
Enzymes

88 / 100

Category: Biology Ch 11 Class 11

NAD is an example of ______:

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

89 / 100

Category: Biology Ch 6 Class 12

Chromosomes are composed of

90 / 100

Category: Biology Ch 1 Class 11

The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called :

91 / 100

Category: Biology Ch 9 Class 12

The process of determining the locus for particular biological traits includes?

PMC Practice 2
Biology
Biotechnology
Elimination Tool:

92 / 100

Category: Biology Ch 9 Class 12

Chimaeric DNA is also known as

93 / 100

Category: Biology Ch 1 Class 12

In comparison to a constantly changing external environment, _____ is when the body maintains the internal processes to work in a narrow range of internal fluctuations.

NUMS 2019 Reconduct
Biology
Homeostasis
Elimination Tool:

94 / 100

Category: Biology

Q.8 Which of the following structure provides greater pathogenicity to the bacteria?

95 / 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:

96 / 100

Category: Biology Ch 8 Class 11

The ecological role of fungi as decomposers is paralleled only by

UHS 2010
Biology
Kingdom Fungi
Elimination Tool:

97 / 100

Category: Biology Ch 12 Class 11

Certain types of whales are also ______ feeder.

98 / 100

Category: Biology

Digestion of which food components starts from the oral cavity?

NUMS Mock 3
Biology
Nutrition

99 / 100

Category: Biology Ch 5 Class 11

The size of smallest virus is:

100 / 100

Category: Biology

Four plants are present in different environmental conditions. Plant A is present in a warm climate with continuous rainfall, plant B is present in a cool forest, plant C is present in a warm climate with little breeze, while plant D is present in a warm climate with high wind speed. Which one of the above plants will have the highest rate of transpiration?

NUMS Mock 2
Biology
Gaseous Exchange

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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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