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 6 Class 12

Phenotype is:

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

2 / 100

Category: Biology

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

NUMS Mock 4
Biology
Bioenergetics

3 / 100

Category: Biology Ch 10 Class 12

Archaebacteria can survive at

4 / 100

Category: Biology Ch 12 Class 11

Earthworm is an example of ______ feeder

5 / 100

Category: Biology Ch 6 Class 11

The word Archaeobacteria (a division of bacteria) derived from Greek means

6 / 100

Category: Biology Ch 3 Class 12

The estrogen hormone secretion during the oogenesis is stimulated by:

NUMS 2020
Biology
Coordination and Control
Elimination Tool:

7 / 100

Category: Biology Ch 8 Class 12

In cats, the genes controlling coat-color are co-dominant (incompletely dominant) and are carried on the X chromosomes. When a black female was mated with a ginger male the resulting litter consisted of black male and tortoise-shell female kittens. What phenotypic ratio would be expected in the F2 generation?

NTS 2012
Biology
Variation and Genetics
Elimination Tool:

8 / 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:

9 / 100

Category: Biology

Q.63  Ozone depletion is commonly caused by:

10 / 100

Category: Biology Ch 13 Class 11

The glycolate produced diffuses into the membrane bounded organelles called

11 / 100

Category: Biology Ch 7 Class 11

Plasmodium belongs to

12 / 100

Category: Biology Ch 7 Class 12

In which stage of meiotic division centromere divides?

NUMS 2017
Biology
Cell Cycle
Elimination Tool:

13 / 100

Category: Biology Ch 5 Class 12

The active sites of all enzyme are formed by:

NUMS 2016
Biology
Growth and Development
Elimination Tool:

14 / 100

Category: Biology Ch 6 Class 11

Genetic recombination in bacteria can occur through:

NUMS 2015
Biology
Kingdom Prokaryote
Elimination Tool:

15 / 100

Category: Biology Ch 1 Class 12

Urine formation is the result of:

NTS 2015 SMBBMC
Biology
Homeostasis
Elimination Tool:

16 / 100

Category: Biology Ch 3 Class 12

All of the following hormones are secreted from anterior lobe of pituitary gland BUT:

NUMS 2019 Reconduct
Biology
Coordination and Control
Elimination Tool:

17 / 100

Category: Biology Ch 6 Class 11

Which of the following bacteria do not have flagella commonly?

18 / 100

Category: Biology Ch 9 Class 12

A single gene can be amplified by using:

NUMS 2019 Reconduct
Biology
Biotechnology
Elimination Tool:

19 / 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:

20 / 100

Category: Biology Ch 12 Class 12

End of earth’ is related to

21 / 100

Category: Biology

_______ is involved in lipid synthesis/metabolism.

NUMS Mock 4
Biology
Cell Structure and Function

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

Q.16 Which of the following changes length during sarcomere contraction?

24 / 100

Category: Biology

Q.50 The cluster of pouches opened from alveolar ducts is known as

25 / 100

Category: Biology

Q.51 The water splitting step of photosynthesis is called?

26 / 100

Category: Biology Ch 9 Class 11

Excess water in plants is forced out in the form of droplets through?

PMC 2021 Tested
Biology
Kingdom Plantae
Elimination Tool:

27 / 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:

28 / 100

Category: Biology

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

29 / 100

Category: Biology

Q.11 In cocci, three plane division result in formation of sarcine which is a

30 / 100

Category: Biology Ch 6 Class 11

The size of Spirochete is

31 / 100

Category: Biology Ch 12 Class 12

Productivity of an ecosystem is indicated by

32 / 100

Category: Biology Ch 2 Class 12

Which of the following statement about an arthropod exoskeleton is incorrect?

33 / 100

Category: Biology Ch 1 Class 12

The water content of mammalian blood is regulated by antidiuretic hormone(ADH). In which part of the nephron does regulation occur ?

NTS 2015 SMBBMC
Biology
Homeostasis
Elimination Tool:

34 / 100

Category: Biology Ch 8 Class 12

An Rh negative woman is married to an Rh positive man whose father was also Rh negative. What are the chances that their child will be affected?

NTS 2016 SMBBMC
Biology
Variation and Genetics
Elimination Tool:

35 / 100

Category: Biology

Lecithin is formed by combining phosphatidic acid with ______:

NUMS Mock 1
Biology
Biological Molecules

36 / 100

Category: Biology

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

37 / 100

Category: Biology

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

NUMS Mock 4
Biology
Enzymes

38 / 100

Category: Biology Ch 2 Class 11

Glucose and fructose join together through _____ to form sucrose.

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

39 / 100

Category: Biology Ch 8 Class 12

Red green colour blindness is a sex linked recessive trait. If a colour blind man marries a woman with normal vision whose father is colourblind and they have a daughter, what is the probability that she will be colourblind?

NTS 2015 SMBBMC
Biology
Variation and Genetics
Elimination Tool:

40 / 100

Category: Biology Ch 5 Class 11

First infectious disease against which effective method of prevention developed was a _______:

NUMS 2020
Biology
Bio-diversity | Variety of Life
Elimination Tool:

41 / 100

Category: Biology Ch 14 Class 11

The causes of Cyanosis include:

NTS 2010
Biology
Transport
Elimination Tool:

42 / 100

Category: Biology Ch 1 Class 11

It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect:

43 / 100

Category: Biology Ch 1 Class 12

Negative feedback mechanism is the characteristic of which class?

NUMS 2020
Biology
Homeostasis
Elimination Tool:

44 / 100

Category: Biology Ch 13 Class 11

Gaseous exchange through the skin is known as ______ respiration.

45 / 100

Category: Biology Ch 5 Class 12

_____ cells store surplus food and _____ cells produce new cells for growth and development of the plant:

NUMS 2019 Cancelled
Biology
Growth and Development
Elimination Tool:

46 / 100

Category: Biology

Which of the following is not related to apoptosis?

NUMS Mock 1
Biology
Growth and Development

47 / 100

Category: Biology Ch 12 Class 11

The structure which prevents the entry of food particles into the respiratory passage is:

NUMS 2019 Cancelled
Biology
Nutrition
Elimination Tool:

48 / 100

Category: Biology Ch 10 Class 11

Of the following which one is non-cellular in most cases in animals?

49 / 100

Category: Biology Ch 6 Class 11

A group of 8 cocci is called

50 / 100

Category: Biology Ch 1 Class 11

An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called:

51 / 100

Category: Biology Ch 9 Class 12

Which of the following is NOT true for genes used in recombinant DNA technology?

NUMS 2019 Reconduct
Biology
Biotechnology
Elimination Tool:

52 / 100

Category: Biology Ch 8 Class 12

In nature, Garden pea is

53 / 100

Category: Biology Ch 9 Class 12

Which of the following characteristics makes plasmid DNA useful for researchers?:

PMC Practice 9
Biology
Biotechnology
Elimination Tool:

54 / 100

Category: Biology Ch 5 Class 11

Viruses resemble living things because they:

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

55 / 100

Category: Biology

Q.52 The patellar reflex and the Achilles reflex are examples of:

56 / 100

Category: Biology Ch 10 Class 12

The ultimate source of all changes is:

NUMS 2015
Biology
Evolution
Elimination Tool:

57 / 100

Category: Biology Ch 2 Class 11

Reactive parts of an amino acid are:

NUMS 2015
Biology
Biological Molecules
Elimination Tool:

58 / 100

Category: Biology Ch 13 Class 11

Number of spiracles present in cockroach is

59 / 100

Category: Biology Ch 1 Class 12

An increrase in plant girth due to activity of _____ is called secondary growth.

60 / 100

Category: Biology Ch 6 Class 11

In bacterial categories the bacteria smaller in number are

61 / 100

Category: Biology

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

62 / 100

Category: Biology

Q.51 The heavy and light chains of an antibody molecule is held together by:

63 / 100

Category: Biology Ch 9 Class 12

Recombinant DNA contains DNA from

64 / 100

Category: Biology Ch 5 Class 12

The individual with harelip shows which of the following conditions?

NUMS 2014
Biology
Growth and Development
Elimination Tool:

65 / 100

Category: Biology Ch 9 Class 11

It looks like a single flower but it is in fact an inflorescence called:

NUMS 2014
Biology
Kingdom Plantae
Elimination Tool:

66 / 100

Category: Biology

Among the following, which cellular organelle contains circular DNA, similar to those found in bacteria?

NUMS Mock 1
Biology
Cell Structure and Function

67 / 100

Category: Biology Ch 6 Class 11

The first simplest oxygen producing organism:

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

68 / 100

Category: Biology Ch 4 Class 11

The basic structural framework of all types of membranes are:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

69 / 100

Category: Biology Ch 5 Class 11

Which of the following category is most general with its members lest resembling with each other than the other categries:

70 / 100

Category: Biology Ch 4 Class 12

Which of the following is correct in humans?

NUMS 2015
Biology
Reproduction
Elimination Tool:

71 / 100

Category: Biology Ch 5 Class 12

Which of the following is NOT a function of Abscisic acid?

PMC Sample 3
Biology
Growth and Development
Elimination Tool:

72 / 100

Category: Biology Ch 7 Class 11

Which of the following statement is incorrect about algae?

73 / 100

Category: Biology Ch 10 Class 12

Which condition can be explained by Lamarckism?

PMC Sample 1
Biology
Evolution
Elimination Tool:

74 / 100

Category: Biology Ch 3 Class 11

Enzymes binds with chemical reactant which is known as?

PMC Sample 3
Biology
Enzymes
Elimination Tool:

75 / 100

Category: Biology Ch 7 Class 12

Mitosis occurs in

76 / 100

Category: Biology Ch 1 Class 12

High level of _____ and _____ in the blood and the contributing factors in the formation of kidney stones.

NUMS 2018
Biology
Homeostasis
Elimination Tool:

77 / 100

Category: Biology Ch 7 Class 11

Lime stone deposits are formed from

78 / 100

Category: Biology Ch 5 Class 11

Numerous opportunist diseases might attack people suffering from the following diseases?

PMC 2020
Biology
Bio-diversity | Variety of Life
Elimination Tool:

79 / 100

Category: Biology Ch 1 Class 12

Sperms of liverworts, mosses, ferns move towards archegonia, in response to uncleic acid released by the ovum. This is an example of:

80 / 100

Category: Biology Ch 7 Class 11

This protist has isomorphic alternation of generation:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

81 / 100

Category: Biology Ch 6 Class 11

Apparently which bacteria is more resistant to antibiotics?

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

82 / 100

Category: Biology Ch 8 Class 12

A pure breeding tall plant was crossed to dwarf plant. What would be probability of “Tt” genotype in F2

83 / 100

Category: Biology Ch 12 Class 11

Which of the following have both internal and external digestion?

NUMS 2016
Biology
Nutrition
Elimination Tool:

84 / 100

Category: Biology Ch 5 Class 12

Germ cells give rise to:

NTS 2012
Biology
Growth and Development
Elimination Tool:

85 / 100

Category: Biology

Q.17  Teichoic acids are the characters of:

86 / 100

Category: Biology Ch 10 Class 12

The following observations refer to evolution:

Inherited variations which are favored in a particular environment are passed on
There is a struggle for existence
Across time, inherited variations may accumulate causing gradual changes in the organism
Although populations tend to overproduce, they remain more or less constant in numbers from generation to generation
In what sequence should the statement be placed to support the Darwin theory of evolution?

NTS 2015 DUHS and JSMU
Biology
Evolution
Elimination Tool:

87 / 100

Category: Biology Ch 5 Class 11

Where can viruses replicate?

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

88 / 100

Category: Biology Ch 10 Class 12

The total aggregate of genes in a population at any one time is called population’s

89 / 100

Category: Biology Ch 13 Class 11

Number of spiracles present in the thorax of cockroach is

90 / 100

Category: Biology

Q.60 The part of spinal cord where interneurons present is called:

91 / 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:

92 / 100

Category: Biology

Q.36 The ETC in plants consists of an electron carrier called?

93 / 100

Category: Biology Ch 5 Class 11

Bacteriophages, or phages are also known as:

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

94 / 100

Category: Biology Ch 9 Class 12

Bacterial cells take up recombinant plasmids when they are treated with:

UHS 2015
Biology
Biotechnology
Elimination Tool:

95 / 100

Category: Biology Ch 12 Class 11

Midgut in cockroach is a short narrow tube called

96 / 100

Category: Biology Ch 13 Class 11

The irritant substances of smoke cause smoker’s cough which weakened and bursts:

NUMS 2019 Reconduct
Biology
Gaseous Exchange
Elimination Tool:

97 / 100

Category: Biology Ch 4 Class 12

Which of these cycles operate in human females?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

98 / 100

Category: Biology Ch 12 Class 12

Mountains of Koh Hindukush come under

99 / 100

Category: Biology Ch 11 Class 11

The end product of Glycolysis is:

NTS 2011
Biology
Bioenergetics
Elimination Tool:

100 / 100

Category: Biology Ch 11 Class 11

Photophosphorylation takes place in the _____ of the chloroplasts:

PMC 2020
Biology
Bioenergetics
Elimination Tool:

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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.

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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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3 responses to “Biology Practice Test 4”

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  2. Anonymous

    Hi

  3. Anonymous

    ok

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