Biology Practice Test 3




Biology Practice Test 3

Biology Practice Test 3 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 genetics, evolution, ecology, biotechnology, and more, helping students improve accuracy and retention.

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Biology Practice Test 3

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1 / 100

Category: Biology Ch 14 Class 11

In human heart, the left atrium receives:

PMC 2020
Biology
Transport
Elimination Tool:

2 / 100

Category: Biology Ch 8 Class 12

How many pairs of homologous chromosomes are present in Pisum sativum

3 / 100

Category: Biology Ch 10 Class 11

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

4 / 100

Category: Biology Ch 13 Class 12

Study of human population and things that affect them is

5 / 100

Category: Biology Ch 12 Class 11

Useful bacteria at the large intestine of humans produce:

NUMS 2015
Biology
Nutrition
Elimination Tool:

6 / 100

Category: Biology Ch 11 Class 11

The light dependent reaction of photosynthesis occurs in:

NTS 2011
Biology
Bioenergetics
Elimination Tool:

7 / 100

Category: Biology Ch 10 Class 11

Platyhelminthes means:

NTS 2017
Biology
Kingdom Animalia
Elimination Tool:

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

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

10 / 100

Category: Biology

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

NUMS Mock 1
Biology
Evolution

11 / 100

Category: Biology Ch 6 Class 12

Genetic code is a ______ code and out of 64 codons, _____ are nonsense codons.

NUMS 2019 Reconduct
Biology
Chromosomes and DNA
Elimination Tool:

12 / 100

Category: Biology Ch 8 Class 11

Fungi which get their food directly from dead organic matter are called?

13 / 100

Category: Biology

How many fatty acid molecules are normally present in a fat or oil molecule?

NUMS Mock 4
Biology
Biological Molecules

14 / 100

Category: Biology Ch 11 Class 11

During the first three steps of glycolysis, glucose is converted to Fructose 1, 6-diphosphate by the rearrangement of the molecule and addition of two phosphate groups. The phosphate comes from?

NTS 2015 SMBBMC
Biology
Bioenergetics
Elimination Tool:

15 / 100

Category: Biology Ch 3 Class 12

The _____ is the main nutritional part and it’s concerned with the biosynthesis of materials necessary for neurons.

NUMS 2019 Reconduct
Biology
Coordination and Control
Elimination Tool:

16 / 100

Category: Biology Ch 8 Class 11

Fungi do not contain:

NTS 2010
Biology
Kingdom Fungi
Elimination Tool:

17 / 100

Category: Biology Ch 5 Class 12

Thymus is found in the human body in _____.

PMC Practice 2
Biology
Growth and Development
Elimination Tool:

18 / 100

Category: Biology Ch 13 Class 11

Pharynx leads air into _____ through glottis.

NTS 2012
Biology
Gaseous Exchange
Elimination Tool:

19 / 100

Category: Biology Ch 10 Class 12

Which condition can be explained by Lamarckism?

PMC Sample 1
Biology
Evolution
Elimination Tool:

20 / 100

Category: Biology Ch 13 Class 11

There are ______ stomata per square cm of leaf surface in Tobacco plants.

21 / 100

Category: Biology Ch 4 Class 12

Which of these cycles operate in human females?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

22 / 100

Category: Biology

As an excretory organ, liver:

NUMS Mock 3
Biology
Homeostasis

23 / 100

Category: Biology Ch 9 Class 11

“Vascular System absent; gametophyte dominant, sporophyte attached to gametophyte; homosporous” are distinguishing characters of

UHS 2010
Biology
Kingdom Plantae
Elimination Tool:

24 / 100

Category: Biology

_________ is the exact position of a gene on the chromosome.

NUMS Mock 3
Biology
Chromosomes and DNA

25 / 100

Category: Biology

Arrange the following according to the level of protein structures:

a) lysozyme, b) haemoglobin, c) insulin, d) hairs.

NUMS Mock 4
Biology
Biological Molecules

26 / 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:

27 / 100

Category: Biology

The light dependent reaction of photosynthesis occurs in:

NUMS Mock 2
Biology
Bioenergetics

28 / 100

Category: Biology Ch 11 Class 11

Light reaction takes place on/in

29 / 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:

30 / 100

Category: Biology Ch 11 Class 11

The process by which one molecule of Glucose splits up into molecules of Pyruvate is called:

NTS 2018
Biology
Bioenergetics
Elimination Tool:

31 / 100

Category: Biology Ch 1 Class 12

In a hot summer after noon, if your body’s Homeostatic machinery keep your internal temperature quite lower than that of external than this is an example of

32 / 100

Category: Biology Ch 4 Class 12

Ovulation is induced by ______ hormone secreted by the pituitary gland.

NUMS 2019 Reconduct
Biology
Reproduction
Elimination Tool:

33 / 100

Category: Biology Ch 4 Class 11

Cellulose is the major component of

34 / 100

Category: Biology Ch 8 Class 11

Asexual spores of fungi are called:

NUMS 2020
Biology
Kingdom Fungi
Elimination Tool:

35 / 100

Category: Biology

On receiving the news of the sudden demise of a close friend; which is the most probable hormone that is secreted at that time?

NUMS Mock 1
Biology
Coordination and Control

36 / 100

Category: Biology Ch 5 Class 11

Viruses without nuclear envelope is called as?

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

37 / 100

Category: Biology

Q.56 During cyclic photophosphorylation, electrons are diverted back to:

38 / 100

Category: Biology Ch 14 Class 11

Identify the only cells in leaf epidermis, which are NOT connected to other cells by plasmodesmata and are involved in photosynthesis.

NUMS 2019 Reconduct
Biology
Transport
Elimination Tool:

39 / 100

Category: Biology Ch 7 Class 12

Most critical phase of mitosis is

40 / 100

Category: Biology

Q.35 Enzymes for light-dependent reactions of photosynthesis would most likely be associated with:

41 / 100

Category: Biology Ch 7 Class 12

Condensation of chromosomes reaches to the maximum during:

NUMS 2015
Biology
Cell Cycle
Elimination Tool:

42 / 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:

43 / 100

Category: Biology Ch 7 Class 12

Asexual offsprings can be produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

44 / 100

Category: Biology Ch 2 Class 12

Myofibrils, within the muscle fibers, contain thick and thin filaments made up of _____ and ______ respectively:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

45 / 100

Category: Biology Ch 10 Class 11

What is the correct order of arthropod groups, from those with most legs to those with fewest legs?

NTS 2014
Biology
Kingdom Animalia
Elimination Tool:

46 / 100

Category: Biology Ch 11 Class 11

In the Calvin cycle, the reducing power from NADPH is used during:

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

47 / 100

Category: Biology Ch 4 Class 11

Select the pair of organs, that contains a large number of mitochondria:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

48 / 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:

49 / 100

Category: Biology Ch 1 Class 12

Which part of the brain regulates body temperature?

NTS 2016 SMBBMC
Biology
Homeostasis
Elimination Tool:

50 / 100

Category: Biology Ch 7 Class 12

Each kinetochore gets ________ fibers in mitosis

51 / 100

Category: Biology Ch 1 Class 11

Oxygen accounts for ____ % of totals human body mass:

52 / 100

Category: Biology Ch 7 Class 12

The phase of mitosis in which sister chromatids move towards opposite poles:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

53 / 100

Category: Biology Ch 8 Class 12

If the seed is heterozygous yellow (Yy). In a test cross, what will be the probability of appearance of seed colors?

NUMS 2019 Reconduct
Biology
Variation and Genetics
Elimination Tool:

54 / 100

Category: Biology Ch 9 Class 12

Gel electrophoresis is a technique:

PMC 2020
Biology
Biotechnology
Elimination Tool:

55 / 100

Category: Biology Ch 13 Class 11

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

NUMS 2015
Biology
Gaseous Exchange
Elimination Tool:

56 / 100

Category: Biology Ch 4 Class 12

Referring to sexual reproduction, humans are:

NTS 2018
Biology
Reproduction
Elimination Tool:

57 / 100

Category: Biology

_______ is the storage form of carbohydrate in animals and humans which is equivalent to the _____ in plants.

NUMS Mock 3
Biology
Biological Molecules

58 / 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:

59 / 100

Category: Biology Ch 9 Class 11

The release of droplets of water from hydathodes is called:

PMC 2021 Tested
Biology
Kingdom Plantae
Elimination Tool:

60 / 100

Category: Biology

DNA fingerprinting is basically done for:

NUMS Mock 1
Biology
Biotechnology

61 / 100

Category: Biology Ch 9 Class 12

Genetic engineering has been successfully used for producing;

UHS 2019
Biology
Biotechnology
Elimination Tool:

62 / 100

Category: Biology Ch 5 Class 11

Solanum tuberosum is a scientific name of:

63 / 100

Category: Biology Ch 1 Class 12

Which of the following structure in plant’s body is called excretophores?

64 / 100

Category: Biology Ch 4 Class 12

A major constituent of contraceptive pills is:

NUMS 2016
Biology
Reproduction
Elimination Tool:

65 / 100

Category: Biology Ch 14 Class 11

In the human body, blood circulating from the gut to the heart passes through the:

NTS 2013
Biology
Transport
Elimination Tool:

66 / 100

Category: Biology Ch 3 Class 11

Enzymes _________ the activation energy of a chemical reaction

67 / 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:

68 / 100

Category: Biology Ch 12 Class 11

The reaction involved in chemotrophic nutrition is:

NTS 2010
Biology
Nutrition
Elimination Tool:

69 / 100

Category: Biology Ch 5 Class 11

The complete, mature and infection virus particle is known as:

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

70 / 100

Category: Biology Ch 9 Class 12

Enzyme used by the Bacteria to cut the DNA of the invading Virus for its protection is:

UHS 2018
Biology
Biotechnology
Elimination Tool:

71 / 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:

72 / 100

Category: Biology Ch 2 Class 12

The muscles attached to the bones are:

NTS 2010
Biology
Support and Movement
Elimination Tool:

73 / 100

Category: Biology Ch 3 Class 12

The spinal nerves are functionally:

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

74 / 100

Category: Biology Ch 4 Class 11

During digesting the phagocytosed food particles vesicles formed from fusion of phagocytic vacuole with the enzymes secreted by Golgi apparantus are called

75 / 100

Category: Biology

Eukaryotic, multicellular, and consumers belong to ______ kingdom.

NUMS Mock 3
Biology
Bio-diversity | Variety of Life

76 / 100

Category: Biology Ch 4 Class 12

In sexual reproduction, plants have diplohaplontic life cycle with alternating

77 / 100

Category: Biology Ch 7 Class 12

Reduction division is:

NUMS 2015
Biology
Cell Cycle
Elimination Tool:

78 / 100

Category: Biology Ch 2 Class 12

Which one of the following are “myogenic” type of muscles?

PMC 2020
Biology
Support and Movement
Elimination Tool:

79 / 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:

80 / 100

Category: Biology Ch 8 Class 12

The trait “Kernel colour in corn” in controlled by how many pairs of genes

81 / 100

Category: Biology

Q.29 Diaphragm is a sheet of:

82 / 100

Category: Biology

At what point are two populations descending from the same ancestral stock considered separate species?

NUMS Mock 4
Biology
Evolution

83 / 100

Category: Biology

Q40 How is pyruvate produced in anaerobic conditions?

84 / 100

Category: Biology Ch 6 Class 11

For respiratory metabolism, a bacterial cell membrane contains:

PMC Practice 4
Biology
Kingdom Prokaryote
Elimination Tool:

85 / 100

Category: Biology Ch 2 Class 11

Water acts as a universal solvent because of:

PMC 2020
Biology
Biological Molecules
Elimination Tool:

86 / 100

Category: Biology Ch 3 Class 11

The enzyme in breast milk that causes the coagulation of milk or forms precipitates of milk is:

NUMS 2016
Biology
Enzymes
Elimination Tool:

87 / 100

Category: Biology Ch 10 Class 11

Aschelminthes is also known as

88 / 100

Category: Biology

Q.39   The fertilization of ovum takes place at:

89 / 100

Category: Biology Ch 3 Class 12

Hepatic and Pancreatic secretions are also stimulated by a hormone called:

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

90 / 100

Category: Biology Ch 8 Class 11

Lichen is a symbiotic mutualistic association of fungi with

91 / 100

Category: Biology Ch 6 Class 12

A tortion of chromatin that is condensed only during cell division is

92 / 100

Category: Biology Ch 3 Class 12

Which of the following is not the function of the cerebrum?

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

93 / 100

Category: Biology Ch 11 Class 11

The end product of glycolysis in anaerobic respiration is:

PMC 2020
Biology
Bioenergetics
Elimination Tool:

94 / 100

Category: Biology

Q43 The animals in which there are separate male and female individuals are called?

95 / 100

Category: Biology Ch 7 Class 11

Which of the following results from conjugation in paramecium?

PMC Practice 3
Biology
Kingdom Protista
Elimination Tool:

96 / 100

Category: Biology Ch 11 Class 12

Major regional ecological community of plants and animals forms

97 / 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:

98 / 100

Category: Biology Ch 5 Class 11

Five steps of the lytic cycle of a T4 stage are given below:

The T4 phage uses its tails to stick to specific receptor
The cell’s metabolic machinery, directed by phage DNA, produces phage proteins and nucleotides from the cells degraded DNA are used to make copies of the phage genome.
The phage then directs production of an enzyme that digests the cell.
The empty capsid of the phage is left as a ghost outside the cell
The sheath of the tail contracts, thrusting a hollow core through the wall and membrane of the cell.
Which of the following is the correct sequence of the cycle?

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

99 / 100

Category: Biology Ch 11 Class 12

Sequence of changes in community and its non-living environment over a period of time is

100 / 100

Category: Biology Ch 6 Class 11

The first simplest oxygen producing organism:

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

Your score is

The average score is 59%

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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 3 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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