Biology Practice Test 2




Biology Practice Test 2

Biology Practice Test 2 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 molecular biology, cell division, human physiology, plant physiology, and more, helping students improve accuracy and retention.

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Biology Practice Test 2

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1 / 100

Category: Biology Ch 5 Class 12

The fate of each blastomere is foretold. What will that cleavage be?

PMC Sample 2
Biology
Growth and Development
Elimination Tool:

2 / 100

Category: Biology Ch 6 Class 11

Which of the following is TRUE about the structure of a typical bacterium?

PMC 2020
Biology
Kingdom Prokaryote
Elimination Tool:

3 / 100

Category: Biology Ch 1 Class 12

Which hormone prepares the body for situations of stress and emergency?

NUMS 2014
Biology
Homeostasis
Elimination Tool:

4 / 100

Category: Biology

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

NUMS Mock 4
Biology
Evolution

5 / 100

Category: Biology Ch 13 Class 11

A disease caused by gradual breakdown of the thin walls of alveoli is;

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

6 / 100

Category: Biology Ch 1 Class 11

Out of 92 naturally occurring chemical elements how many are considered as bio-elements:

7 / 100

Category: Biology

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

NUMS Mock 4
Chemistry
Hydrocarbons

8 / 100

Category: Biology Ch 3 Class 12

Which of the following is antagonist to Auxin in terms of promotion of stem growth?

9 / 100

Category: Biology

Q.15 The inhibitory effect of which inhibitor can be more dangerous in Krebs cycle?

10 / 100

Category: Biology Ch 5 Class 11

First step of viral replication is:

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

11 / 100

Category: Biology Ch 8 Class 12

If we cross round yellow seeded plant with green wrinkled seeded plants, what will be phenotypic ratio at F2 generation?

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

12 / 100

Category: Biology

The thick filaments, in a myofibril of muscles, are made of ________.

NUMS Mock 3
Biology
Support and Movement

13 / 100

Category: Biology Ch 11 Class 11

Lactic Acid Fermentation is a type of anaerobic respiration that occurs in human muscle cells. It yields only ____ % of the energy present in a glucose molecule.

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

14 / 100

Category: Biology Ch 4 Class 12

Which of the following is correct in humans?

NUMS 2015
Biology
Reproduction
Elimination Tool:

15 / 100

Category: Biology Ch 2 Class 11

Mono-saccharides have a general formula represented by:

PMC 2020
Biology
Biological Molecules
Elimination Tool:

16 / 100

Category: Biology

All of the followings are the effects of red light on plant, EXCEPT:

NUMS Mock 2
Biology
Growth and Development

17 / 100

Category: Biology Ch 1 Class 12

Deamination in the liver initially produces:

NTS 2010
Biology
Homeostasis
Elimination Tool:

18 / 100

Category: Biology Ch 3 Class 11

The pH at which the activity of pancreatic lipase enzyme is maximum is:

NUMS 2019 Cancelled
Biology
Enzymes
Elimination Tool:

19 / 100

Category: Biology Ch 13 Class 11

Most oxygen is transported in the blood:

NUMS 2018
Biology
Gaseous Exchange
Elimination Tool:

20 / 100

Category: Biology

Q.24 Glycophorin is involved in which of the following disease?

21 / 100

Category: Biology

Booklungs serve the function of respiration in:

NUMS Mock 3
Biology
Gaseous Exchange

22 / 100

Category: Biology Ch 10 Class 12

On Galapagos island, among the birds, ____ caught much attention of Darwin in formulating his work, related to adaptations.

NUMS 2019 Reconduct
Biology
Evolution
Elimination Tool:

23 / 100

Category: Biology Ch 6 Class 11

The first bacterium isolated was

24 / 100

Category: Biology Ch 13 Class 11

Oxygen contents per liter of air is

25 / 100

Category: Biology Ch 2 Class 11

Carbon atom is

26 / 100

Category: Biology

Q.25 Which of the following is an example of a marine annelid?

27 / 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:

28 / 100

Category: Biology Ch 12 Class 11

Absorption of digested food occurs mainly in:

NUMS 2014
Biology
Nutrition
Elimination Tool:

29 / 100

Category: Biology

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

30 / 100

Category: Biology Ch 10 Class 12

Many scientists believe that one of the following is evolutionary origin(s) of animals, plants and fungi?

NTS 2013
Biology
Evolution
Elimination Tool:

31 / 100

Category: Biology Ch 6 Class 12

The diploid human chromosome set has:

NTS 2016 SMBBMC
Biology
Chromosomes and DNA
Elimination Tool:

32 / 100

Category: Biology Ch 4 Class 12

Treponema pallidum causes:

NUMS 2016
Biology
Reproduction
Elimination Tool:

33 / 100

Category: Biology Ch 6 Class 12

Which of the following statements correctly describes homologous chromosomes?

NTS 2016 DUHS & JSMU
Biology
Chromosomes and DNA
Elimination Tool:

34 / 100

Category: Biology Ch 5 Class 11

The shape of the tobacco mosaic virus is:

NUMS 2016
Biology
Bio-diversity | Variety of Life
Elimination Tool:

35 / 100

Category: Biology Ch 9 Class 12

First restriction enzyme was isolated by

36 / 100

Category: Biology

Q.19 Darwins theory mainly focuses o

37 / 100

Category: Biology Ch 7 Class 12

Crossing over occur between ____________ of homologous chromosomes:

PMC Sample 1
Biology
Cell Cycle
Elimination Tool:

38 / 100

Category: Biology

Q.34 What molecule would you not expect to find in a refrovirus

39 / 100

Category: Biology Ch 10 Class 11

Filter feeders extract food particles from:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

40 / 100

Category: Biology Ch 5 Class 11

Whenever a virus encounters an unfamiliar organism, the virus may undergo multiple mutations and emerge as a variant that produces:

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

41 / 100

Category: Biology Ch 7 Class 11

Which of the protozoa has a striking resemblance to collar cells in sponges?

42 / 100

Category: Biology

Q.60 A small size gene can be get easily by/from:

43 / 100

Category: Biology Ch 5 Class 12

______ is the reconstruction of the lost part of the body.

NTS 2012
Biology
Growth and Development
Elimination Tool:

44 / 100

Category: Biology

Q.66 Which type of sensory structures carrying the touch sensations are present in papillae extending into ridges of the finger tips?

45 / 100

Category: Biology

Q.44 To produce ATP (adenosine triphosphate) in muscles, creatine phosphate (CP) transfers__________________ to adenosine diphosphate (ADP).

46 / 100

Category: Biology

 

Q.62 Which of the following is not a sterilization method for the control of bacteria?

47 / 100

Category: Biology Ch 2 Class 12

The number of vertebrate in horse neck are:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

48 / 100

Category: Biology Ch 9 Class 12

Treatment of hereditary disorders by gene manipulations is called:

NUMS 2016
Biology
Biotechnology
Elimination Tool:

49 / 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:

50 / 100

Category: Biology Ch 8 Class 12

A pea plant has purple colored flowers (dominant trait). To check the genotype, which of the following cross is performed

NUMS 2018
Biology
Variation and Genetics
Elimination Tool:

51 / 100

Category: Biology Ch 1 Class 12

Vascular Cambium initially appears as actively dividing cells between:

52 / 100

Category: Biology

Lymph vessels transfer the lymph into blood through_________.

NUMS Mock 3
Biology
Transport

53 / 100

Category: Biology Ch 7 Class 11

How are flat worms not similar to round worms?

PMC Practice 4
Biology
Kingdom Protista
Elimination Tool:

54 / 100

Category: Biology Ch 11 Class 11

Which of the following is a chemical link between catabolism and anabolism?

55 / 100

Category: Biology Ch 9 Class 12

The Plasmid pBR322 has antibiotic resistance genes for:

UHS 2019
Biology
Biotechnology
Elimination Tool:

56 / 100

Category: Biology

Q.47  The chemical nature of oxytocin is:

57 / 100

Category: Biology Ch 1 Class 12

Thick, waxy & leathery cuticle around leaves is present in

58 / 100

Category: Biology

Which organ(s) in the male reproductive system produce gametes?

NUMS Mock 4
Biology
Reproduction

59 / 100

Category: Biology

In the human cell, ______ is responsible for producing hydrogen peroxide.

NUMS Mock 2
Biology
Cell Structure and Function

60 / 100

Category: Biology Ch 6 Class 12

The combination of XXY (47) chromosomes results in:

NTS 2012
Biology
Chromosomes and DNA
Elimination Tool:

61 / 100

Category: Biology

Q.44  When calcium gates of the smooth endoplasmic reticulum are open, then calcium is released into:

62 / 100

Category: Biology Ch 10 Class 12

Which of the following is a vestigial organ?

PMC Sample 2
Biology
Evolution
Elimination Tool:

63 / 100

Category: Biology

Which of the following diseases is sexually transmitted?

NUMS Mock 1
Biology
Bio-diversity | Variety of Life

64 / 100

Category: Biology Ch 8 Class 12

______ are more common in human males than females.

NUMS 2016
Biology
Variation and Genetics
Elimination Tool:

65 / 100

Category: Biology Ch 8 Class 12

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

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

66 / 100

Category: Biology Ch 12 Class 11

Digestion of which food components starts from the oral cavity?

NUMS 2020
Biology
Nutrition
Elimination Tool:

67 / 100

Category: Biology Ch 11 Class 11

Glucose → 2 pyruvic acid + 2H2O

2ADP + 2Pi → 2 ATP

2NAD + 4H → 2NADH + 2H+

These three reactions collectively constitute ______.

NTS 2012
Biology
Bioenergetics
Elimination Tool:

68 / 100

Category: Biology Ch 1 Class 11

A series of hypothesis supported by the results of many tests is called

69 / 100

Category: Biology Ch 4 Class 11

The second most abundant bio element in the human body is:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

70 / 100

Category: Biology Ch 5 Class 12

Thymus is found in the human body in _____.

PMC Practice 2
Biology
Growth and Development
Elimination Tool:

71 / 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:

72 / 100

Category: Biology Ch 10 Class 12

Adaptation of traits to better fill a niche is known as which of the following?

PMC Sample 3
Biology
Evolution
Elimination Tool:

73 / 100

Category: Biology Ch 11 Class 11

Molecular formula of chlorophyll ‘a’ molecule is:

74 / 100

Category: Biology Ch 2 Class 11

NAD is an example of:

PMC 2020
Biology
Biological Molecules
Elimination Tool:

75 / 100

Category: Biology

The passageways of the respiratory system have mucous secreting cells called:

NUMS Mock 3
Biology
Gaseous Exchange

76 / 100

Category: Biology Ch 11 Class 12

All populations within an ecosystem interconnected to one another are known as

77 / 100

Category: Biology Ch 6 Class 11

Bacterial pilli help in:

NTS 2011
Biology
Kingdom Prokaryote
Elimination Tool:

78 / 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”

79 / 100

Category: Biology Ch 4 Class 11

60S and 40S subunit combine to form ______ particle

80 / 100

Category: Biology Ch 8 Class 11

An association between two organisms benefiting both is called

UHS 2010
Biology
Kingdom Fungi
Elimination Tool:

81 / 100

Category: Biology

Genetic information in the DNA is encoded as:

NUMS Mock 1
Biology
Chromosomes and DNA

82 / 100

Category: Biology Ch 3 Class 11

A chemical substance which can react (in place of substrate) with the enzyme but is not transformed into product/s and thus blocks the active site temporarily or permanently is called

83 / 100

Category: Biology Ch 12 Class 11

Which type of mucosa cells secrete pepsinogen?

NUMS 2014
Biology
Nutrition
Elimination Tool:

84 / 100

Category: Biology Ch 8 Class 12

How many genes control Rh blood group system?

85 / 100

Category: Biology

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

NUMS Mock 3
Biology
Chromosomes and DNA

86 / 100

Category: Biology Ch 1 Class 11

In animals coordination is achieved by means of

87 / 100

Category: Biology Ch 7 Class 11

The nucleoid is found only in certain species of:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

88 / 100

Category: Biology Ch 2 Class 12

Poliomyelitis normally affects the:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

89 / 100

Category: Biology Ch 5 Class 11

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

90 / 100

Category: Biology Ch 2 Class 12

Which of the following bones are present in the palm of the hand:

NTS 2010
Biology
Support and Movement
Elimination Tool:

91 / 100

Category: Biology Ch 12 Class 12

One of the most important cause of desertification is

92 / 100

Category: Biology Ch 5 Class 11

HIV is also known as:

NUMS 2014
Biology
Bio-diversity | Variety of Life
Elimination Tool:

93 / 100

Category: Biology Ch 2 Class 11

Which of the statement is not true for compounds like glycoprotein and glycolipids?

94 / 100

Category: Biology Ch 8 Class 12

Erythroblastosis foetalis occurs when:

NTS 2011
Biology
Variation and Genetics
Elimination Tool:

D) Both mother and baby are Rh-positive

95 / 100

Category: Biology Ch 13 Class 11

Lungs are spongy due to the presence of million of

96 / 100

Category: Biology Ch 10 Class 11

The adaptive feature(s) which help(s) the fish to live in water include(s):

NTS 2014
Biology
Kingdom Animalia
Elimination Tool:

97 / 100

Category: Biology Ch 8 Class 11

Lichen is a symbiotic mutualistic association of fungi with

98 / 100

Category: Biology Ch 10 Class 12

There existed two varieties of female freshwater Mollusks in which some were streamlined and some had a high bulge. Over the generations, male freshwater Mollusks learned that high bulge favors more production of offspring. So they started preferring to mate with females having high bulge as compared to streamlined. Will this affect Hardy Weinberg Equilibrium in the population?

NTS 2019
Biology
Evolution
Elimination Tool:

99 / 100

Category: Biology Ch 5 Class 11

Binomial nomenclature was proposed for the first time by:

NTS 2010
Biology
Bio-diversity | Variety of Life
Elimination Tool:

100 / 100

Category: Biology Ch 2 Class 11

Which of the following is an unsaturated fatty acid?

PMC 2020
Biology
Biological Molecules
Elimination Tool:

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The average score is 57%

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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 2 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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