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 13 Class 11

Xerophytes have small thick leaves to;

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

2 / 100

Category: Biology

Nitrogen-fixing bacteria in root nodules fix nitrogen in soil air into:

NUMS Mock 1
Biology
Nutrition

3 / 100

Category: Biology

The type of plastids found in roots of plants are _____.

NUMS Mock 4
Biology
Cell Structure and Function

4 / 100

Category: Biology Ch 8 Class 12

A man with blood group “A” marries a woman of blood group “B”. Both are heterozygous. What is the off-springs having phenotype “O”

5 / 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:

6 / 100

Category: Biology Ch 2 Class 12

In an annelids, the contraction of circular muscle results in:

7 / 100

Category: Biology Ch 4 Class 12

Which characteristic is not of identical twins

8 / 100

Category: Biology Ch 6 Class 11

The first bacterium isolated was

9 / 100

Category: Biology

Q.64  All of the following are the attributes of evolution except:

10 / 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:

11 / 100

Category: Biology Ch 10 Class 11

An organism appears to be a segmented worm. Upon observation, it is determined that the organism has a closed circulation, a mouth, and an anus and does not have an exoskeleton. The organism most likely belongs to the phylum:

NTS 2010
Biology
Kingdom Animalia
Elimination Tool:

12 / 100

Category: Biology Ch 7 Class 12

Spread of tumor cells and establishment of secondary areas of growth is

13 / 100

Category: Biology

Q.40 Which of the following is true of both bacterial conjugation and meiosis?

14 / 100

Category: Biology Ch 10 Class 12

Adaptations that an organism acquires by its own actions are

15 / 100

Category: Biology Ch 12 Class 11

Undigested food in cockroach is stored in:

NUMS 2015
Biology
Nutrition
Elimination Tool:

16 / 100

Category: Biology Ch 8 Class 12

The disease, which is caused by defect in a single gene or pair of genes is referred to as:

NTS 2016 SMBBMC
Biology
Variation and Genetics
Elimination Tool:

17 / 100

Category: Biology Ch 2 Class 11

Glucose and fructose join together through _____ to form sucrose.

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

18 / 100

Category: Biology

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

NUMS Mock 2
Biology
Man and His Environment

19 / 100

Category: Biology Ch 3 Class 12

Normal resting membrane potential of a neuron is

20 / 100

Category: Biology Ch 4 Class 12

Viviparous animals are those in which

21 / 100

Category: Biology Ch 10 Class 12

Prokaryotes are considered to be evolved

22 / 100

Category: Biology

Q.23 Reflex action is type of

23 / 100

Category: Biology Ch 3 Class 11

If enzyme concentration is low than substrate pH and temperature values are equal to requirement then which of the following will increase rate of reaction.

24 / 100

Category: Biology Ch 2 Class 12

Identify the bones in which the connecting joints are freely movable joints?

NTS 2015 DUHS and JSMU
Biology
Support and Movement
Elimination Tool:

25 / 100

Category: Biology Ch 1 Class 12

In a marine environment, the ion secreted by the kidney is:

NUMS 2020
Biology
Homeostasis
Elimination Tool:

26 / 100

Category: Biology Ch 8 Class 12

The total number of genes present in a particular population, at a particular time is called:

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

27 / 100

Category: Biology Ch 7 Class 11

Symptoms of malaria occur specifically due to the formation of:

NUMS 2015
Biology
Kingdom Protista
Elimination Tool:

28 / 100

Category: Biology

Q.68 A person was married to his cousin and both are heterozygous for sickle cell anemia. Among their four kids, what will be proportion of affected homozygotes?

29 / 100

Category: Biology

To overcome infertility, which technique is used?

NUMS Mock 4
Biology
Reproduction

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

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

32 / 100

Category: Biology

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

NUMS Mock 4
Biology
Chromosomes and DNA

33 / 100

Category: Biology Ch 5 Class 12

In multicellular plants cell division occur by

34 / 100

Category: Biology Ch 4 Class 12

Which statement is incorrect?

35 / 100

Category: Biology Ch 10 Class 11

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

36 / 100

Category: Biology Ch 11 Class 11

Which of the following is a compensation point:

37 / 100

Category: Biology Ch 5 Class 12

The egg of a chick is laid at which of the following stages?

NTS 2015 DUHS and JSMU
Biology
Growth and Development
Elimination Tool:

38 / 100

Category: Biology Ch 11 Class 11

The inner membrane of mitochondrion has many infoldings into the inner chamber, these folding are called as:

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

39 / 100

Category: Biology Ch 14 Class 11

Consider the following statements regarding blood pressure:

1. It is the pressure exerted by the blood on the walls of any vessel.

2. It decreases in the arteries as the distance from the heart increases.

3. It is lower in the capillaries than in the arteries.

4. It is usually lower in women than in men.

Choose the correct statements.

NTS 2015 DUHS and JSMU
Biology
Transport
Elimination Tool:

40 / 100

Category: Biology Ch 5 Class 11

Second major form of hepatitis is:

NUMS 2015
Biology
Bio-diversity | Variety of Life
Elimination Tool:

41 / 100

Category: Biology Ch 2 Class 11

Which of these is not a disaccharide?

NUMS 2018
Biology
Biological Molecules
Elimination Tool:

42 / 100

Category: Biology Ch 1 Class 12

The characteristic which enable animals to tolerate dehydration is called

43 / 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:

44 / 100

Category: Biology

Q.2 The set of all genes in any population is termed as?

45 / 100

Category: Biology Ch 5 Class 12

The only promoter of leaf senescence in the following plant hormones is?

PMC Sample 3
Biology
Growth and Development
Elimination Tool:

46 / 100

Category: Biology Ch 6 Class 11

The shape of Cocci bacteria is:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

47 / 100

Category: Biology Ch 4 Class 12

Referring to sexual reproduction, humans are:

NTS 2018
Biology
Reproduction
Elimination Tool:

48 / 100

Category: Biology Ch 5 Class 11

The name Bacteriophage was coined by:

49 / 100

Category: Biology Ch 3 Class 11

Which type of bonds are never formed when a substrate fits into the active site of an enzyme?

PMC Practice 1
Biology
Enzymes
Elimination Tool:

50 / 100

Category: Biology Ch 3 Class 11

Which statement about enzyme is incorrect:

51 / 100

Category: Biology Ch 9 Class 12

In prokaryotes only one type of RNA polymerase is present, while ______ types of RNA polymerase are present in eukaryotes.

NUMS 2019 Reconduct
Biology
Biotechnology
Elimination Tool:

52 / 100

Category: Biology Ch 11 Class 11

NADH produces how many ATP?

NUMS 2016
Biology
Bioenergetics
Elimination Tool:

53 / 100

Category: Biology Ch 4 Class 12

Which of the following is correct in humans?

NUMS 2015
Biology
Reproduction
Elimination Tool:

54 / 100

Category: Biology Ch 4 Class 11

Autophagosomes are

55 / 100

Category: Biology Ch 9 Class 12

Choose the term from the following which is NOT a part of gene therapy?

NTS 2019
Biology
Biotechnology
Elimination Tool:

56 / 100

Category: Biology Ch 11 Class 11

Where do the light – dependent reactions of photosynthesis occur?

NTS 2016 SMBBMC
Biology
Bioenergetics
Elimination Tool:

57 / 100

Category: Biology Ch 9 Class 12

Chimaeric DNA is also known as

58 / 100

Category: Biology Ch 7 Class 12

A special area of centromere with specific base arrangement and specific proteins where spindle fibers are attached is called

59 / 100

Category: Biology Ch 8 Class 12

Baldness is most frequent in

60 / 100

Category: Biology Ch 10 Class 12

During aristotle time, it was thought that

PMC Sample 3
Biology
Evolution
Elimination Tool:

61 / 100

Category: Biology

Q.12 In enzymatic mechanism, the substrate bind to enzyme active site to produce?

62 / 100

Category: Biology Ch 10 Class 11

Scales are present in:

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

63 / 100

Category: Biology Ch 5 Class 12

Secondary growth is actually

64 / 100

Category: Biology Ch 11 Class 11

In electron transport chain, ATP synthesis takes place when electrons move from:

PMC 2020
Biology
Bioenergetics
Elimination Tool:

65 / 100

Category: Biology Ch 13 Class 11

During inspiration, the space inside the chest cavity is increased due to:

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

66 / 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 1
Biology
Enzymes

67 / 100

Category: Biology Ch 14 Class 11

Fibrinogen is necessary for:

NUMS 2014
Biology
Transport
Elimination Tool:

68 / 100

Category: Biology

When were bacteriophages discovered by Twort?

NUMS Mock 2
Biology
Bio-diversity | Variety of Life
Variety of Life

69 / 100

Category: Biology Ch 12 Class 11

A hormone called _______ controls the secretion of gastric juice.

NUMS 2018
Biology
Nutrition
Elimination Tool:

70 / 100

Category: Biology Ch 5 Class 12

The process of aging:

NUMS 2015
Biology
Growth and Development
Elimination Tool:

71 / 100

Category: Biology Ch 8 Class 12

Genotype of blood group ‘AB’ in human is ______.

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

72 / 100

Category: Biology Ch 5 Class 11

Mark the one Kingdom having the most conspicuous living organisms?

NTS 2018
Biology
Bio-diversity | Variety of Life
Elimination Tool:

73 / 100

Category: Biology Ch 1 Class 12

In animals excess of nitrogen is excreted primarily in form of

74 / 100

Category: Biology Ch 8 Class 11

Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called

75 / 100

Category: Biology Ch 7 Class 12

Smooth endoplasmic reticulum is responsible for the metabolism of:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

76 / 100

Category: Biology Ch 7 Class 11

Which of the following is the best desciption of bacteriophage?

PMC Practice 32
Biology
Kingdom Protista
Elimination Tool:

77 / 100

Category: Biology Ch 7 Class 12

Chance of a cross over between two loci is directly proportional to their

UHS 2018
Biology
Cell Cycle
Elimination Tool:

78 / 100

Category: Biology Ch 1 Class 12

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

PMC 2020
Biology
Homeostasis
Elimination Tool:

79 / 100

Category: Biology Ch 14 Class 11

All of the following protect the body against the entrance of germs except:

NTS 2017
Biology
Transport
Elimination Tool:

80 / 100

Category: Biology Ch 12 Class 11

Intrinsic factor is secreted by:

NUMS 2020
Biology
Nutrition
Elimination Tool:

81 / 100

Category: Biology Ch 13 Class 11

Lungs are separated from abdominal cavity by a muscular sheath called:

NUMS 2018
Biology
Gaseous Exchange
Elimination Tool:

82 / 100

Category: Biology

Q.13 The frequency of allele if it is evolutionary successful is?

83 / 100

Category: Biology Ch 8 Class 11

A plant disease which is not caused by a fungus is:

NUMS 2015
Biology
Kingdom Fungi
Elimination Tool:

84 / 100

Category: Biology

Which of the following compounds possesses a single covalent bond between carbon and hydrogen?

NUMS Mock 4
Chemistry
Hydrocarbons

85 / 100

Category: Biology Ch 2 Class 11

Cell wall is made up of:

NUMS 2016
Biology
Biological Molecules
Elimination Tool:

86 / 100

Category: Biology Ch 6 Class 11

The size of Spirochete is

87 / 100

Category: Biology

5 different amino acids, numbered 1, 2, 3, 4, and 5, below from the following sequence in the path of a polypeptide chain:

1-2-3-4-2-5-3

Messenger RNA codon, which correspond to the amino acids, are:
amino acid 1 UGU

amino acid 2 GAU

amino acid 3 CAC

amino acid 4 UAG

amino acid 5 AAG

Which one of the following DNA bases sequences could provide the code for the given section of the polypeptide?

NUMS Mock 2
Biology
Biological Molecules

88 / 100

Category: Biology Ch 9 Class 11

Which of the following is not a parasitic fungus of plants?

NUMS 2015
Biology
Kingdom Plantae
Elimination Tool:

89 / 100

Category: Biology

Q.1 At which times there is no net gaseous exchange between leaves and the atmosphere?

90 / 100

Category: Biology Ch 14 Class 11

Atherosclerosis is disease of:

NTS 2016 SMBBMC
Biology
Transport
Elimination Tool:

91 / 100

Category: Biology Ch 3 Class 12

Which one of the following is a neurotransmitter?

NUMS 2020
Biology
Coordination and Control
Elimination Tool:

92 / 100

Category: Biology Ch 10 Class 11

Pseudo coelomate animals are:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

93 / 100

Category: Biology

Q.22 Which of the following is false about conjugation?

94 / 100

Category: Biology Ch 13 Class 12

In nitrogen fixation, nitrogen is converted to:

NUMS 2019 Cancelled
Biology
Man and His Environment
Elimination Tool:

95 / 100

Category: Biology Ch 11 Class 11

Cyanides are potent poisons of the living organism and can kill by inhibiting _____, essential for cellular respiration:

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

96 / 100

Category: Biology Ch 6 Class 11

Which of the following structure is not present in all the bacteria?

97 / 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:

98 / 100

Category: Biology Ch 13 Class 12

Study of human population and things that affect them is

99 / 100

Category: Biology Ch 1 Class 11

Which character differentiates living things from non-living organisms?

100 / 100

Category: Biology

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

NUMS Mock 4
Biology
Bioenergetics

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”

  1. Thank

  2. Anonymous

    Hi

  3. Anonymous

    ok

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