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 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:

2 / 100

Category: Biology Ch 9 Class 11

What is an example of sperms of liverworts, mosses, ferns which move towards archegonia, in response to nucleic acid released by the ovum?

PMC Practice 7
Biology
Kingdom Plantae
Elimination Tool:

3 / 100

Category: Biology Ch 7 Class 11

How are flat worms not similar to round worms?

PMC Practice 4
Biology
Kingdom Protista
Elimination Tool:

4 / 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:

5 / 100

Category: Biology Ch 4 Class 12

In cloning, nucleus is introduced into

6 / 100

Category: Biology Ch 10 Class 11

Leptocardii is a group of:

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

7 / 100

Category: Biology Ch 8 Class 12

Filial is a Latin word. It means

8 / 100

Category: Biology Ch 4 Class 12

In human females, oocytes are held in the second metaphase until ________.

NUMS 2019 Reconduct
Biology
Reproduction
Elimination Tool:

9 / 100

Category: Biology Ch 6 Class 12

In a typical nucleotide, the nitrogenous base is attached to _______ carbon of pentose sugar.

NTS 2010
Biology
Chromosomes and DNA
Elimination Tool:

10 / 100

Category: Biology Ch 3 Class 12

Gibberellins may be substituted for _____ light, therefore promote flowering in long day plants.

11 / 100

Category: Biology

Hemoglobin carries more oxygen than plasma by:

NUMS Mock 1
Biology
Gaseous Exchange

12 / 100

Category: Biology Ch 6 Class 11

Which of the following bacteria are thick rigid and spiral?

13 / 100

Category: Biology Ch 4 Class 12

Colour of corpus luteum is:

NUMS 2018
Biology
Reproduction
Elimination Tool:

14 / 100

Category: Biology Ch 1 Class 12

Sphincter muscle in urinary system present near the junction of:

NUMS 2019 Reconduct
Biology
Homeostasis
Elimination Tool:

15 / 100

Category: Biology Ch 6 Class 12

The diploid human chromosome set has:

NTS 2016 SMBBMC
Biology
Chromosomes and DNA
Elimination Tool:

16 / 100

Category: Biology

HIV is a:

NUMS Mock 3
Biology
Bio-diversity | Variety of Life

17 / 100

Category: Biology Ch 10 Class 12

The genetic change in a population caused by natural selection is called?

PMC Sample 1
Biology
Evolution
Elimination Tool:

18 / 100

Category: Biology Ch 6 Class 12

Which of the following enzymes is used to join DNA fragments?

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

19 / 100

Category: Biology Ch 2 Class 12

The process of cartilage formation is known as:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

20 / 100

Category: Biology Ch 3 Class 11

Malonic acid is an example of:

21 / 100

Category: Biology Ch 8 Class 12

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

22 / 100

Category: Biology Ch 7 Class 12

At what phase the DNA content of a cell is doubled?

PMC 2020
Biology
Cell Cycle
Elimination Tool:

23 / 100

Category: Biology Ch 2 Class 12

Joints found at the vertebrates are:

NTS 2014
Biology
Support and Movement
Elimination Tool:

24 / 100

Category: Biology Ch 1 Class 12

Purine and pyrimidine catabolism results in production of

25 / 100

Category: Biology Ch 1 Class 12

The excretory product that requires minimum water for its elimination compared to others is:

NUMS 2017
Biology
Homeostasis
Elimination Tool:

26 / 100

Category: Biology Ch 9 Class 12

Genetic engineering has been successfully used for producing;

UHS 2019
Biology
Biotechnology
Elimination Tool:

27 / 100

Category: Biology Ch 10 Class 12

Important point/s of Lamarck’s theory

28 / 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:

29 / 100

Category: Biology Ch 10 Class 11

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

30 / 100

Category: Biology

Q.9 This is a reduced compound

31 / 100

Category: Biology Ch 10 Class 11

Which organism has wings with claws?

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

32 / 100

Category: Biology

What do we call the cell surface membrane of a muscle fibre?

NUMS Mock 3
Biology
Support and Movement

33 / 100

Category: Biology

How many ml of blood is pumped by each contraction of the heart?

NUMS Mock 1
Biology
Transport

34 / 100

Category: Biology Ch 11 Class 11

Stroma of chloroplast carries the fixation of:

NUMS 2014
Biology
Bioenergetics
Elimination Tool:

35 / 100

Category: Biology Ch 3 Class 12

The autonomic nervous system controls all of the following activities except:

NTS 2014
Biology
Coordination and Control
Elimination Tool:

36 / 100

Category: Biology

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

NUMS Mock 1
Biology
Nutrition

37 / 100

Category: Biology Ch 4 Class 11

Anthocyanins are various types of colorful pigments present in the:

NUMS 2014
Biology
Cell Structure and Function
Elimination Tool:

38 / 100

Category: Biology Ch 3 Class 11

Lock and Key model was proposed by

 

39 / 100

Category: Biology Ch 1 Class 12

Malpighian tubules are involved in excretion in:

NTS 2011
Biology
Homeostasis
Elimination Tool:

40 / 100

Category: Biology Ch 13 Class 11

Vocal cords, which help in voice production are two thin edged fibrous bands, present in:

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Elimination Tool:

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 10 Class 12

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

43 / 100

Category: Biology Ch 7 Class 12

How does the second meiotic division differ from mitosis? In the second meiotic division:

NTS 2015 SMBBMC
Biology
Cell Cycle
Elimination Tool:

44 / 100

Category: Biology Ch 2 Class 11

According to the fluid mosaic model of cell membrane, which zone is embedded inside?

PMC 2020
Biology
Biological Molecules
Elimination Tool:

45 / 100

Category: Biology Ch 12 Class 11

Optimum pH for action of pepsin and salivary amylase is

NTS 2016 DUHS & JSMU
Biology
Nutrition
Elimination Tool:

46 / 100

Category: Biology

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

NUMS Mock 4
Chemistry
Hydrocarbons

47 / 100

Category: Biology Ch 9 Class 12

The Plasmid pBR322 has antibiotic resistance genes for:

UHS 2019
Biology
Biotechnology
Elimination Tool:

48 / 100

Category: Biology

Q.60 Which of the following statements correctly describes how the host cell membrane is changed by viral replication?

49 / 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:

50 / 100

Category: Biology

Which of the following is not an infection of the lungs/respiratory tract?

NUMS Mock 2
Biology
Gaseous Exchange

51 / 100

Category: Biology

Which bond is present between the nucleotides of DNA:

NUMS Mock 4
Biology
Chromosomes and DNA

52 / 100

Category: Biology Ch 5 Class 12

Meristems are group of cells that

53 / 100

Category: Biology Ch 2 Class 12

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

54 / 100

Category: Biology Ch 10 Class 12

The wings of birds and the forelegs of a horse are _____ structures.

NUMS 2016
Biology
Evolution
Elimination Tool:

55 / 100

Category: Biology Ch 7 Class 11

_______ infection is caused by a viroid:

NUMS 2020
Biology
Kingdom Protista
Elimination Tool:

56 / 100

Category: Biology Ch 3 Class 11

In 1959, Koshland proposed which of the following?

PMC Practice 1
Biology
Enzymes
Elimination Tool:

57 / 100

Category: Biology

Erythroblastosis foetalis occurs when:

NUMS Mock 2
Biology
Variation and Genetics

58 / 100

Category: Biology

What is the role of cholesterol in the cell membrane?

NUMS Mock 4
Biology
Cell Structure and Function

59 / 100

Category: Biology Ch 12 Class 12

Mountains of Koh Hindukush come under

60 / 100

Category: Biology

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

61 / 100

Category: Biology Ch 6 Class 12

Which statement is correct?

62 / 100

Category: Biology Ch 9 Class 11

Which type of leucoplasts store lipids?

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

63 / 100

Category: Biology Ch 1 Class 12

Excretory system, consisting of protonephridia tubes, are present in phylum:

NUMS 2020
Biology
Homeostasis
Elimination Tool:

64 / 100

Category: Biology Ch 1 Class 12

Which of the following types of transpiration account for 5 – 7 % of total transpiration that take place in plants?

NUMS 2019 Cancelled
Biology
Homeostasis
Elimination Tool:

65 / 100

Category: Biology Ch 2 Class 12

The number of vertebrate in horse neck are:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

66 / 100

Category: Biology Ch 3 Class 11

The rate of reaction is directly proportional to the concentration of an enzyme which statement is incorrect in this respect:

67 / 100

Category: Biology

Steroids consist of _____ 6 membered carbon rings and one 5 membered carbon ring.

NUMS Mock 4
Biology
Biological Molecules

68 / 100

Category: Biology Ch 5 Class 12

Sertoli cells

69 / 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

70 / 100

Category: Biology Ch 7 Class 11

Photosynthesis is absent in which of the following:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

71 / 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:

72 / 100

Category: Biology Ch 10 Class 11

Exoskeleton of cockroach is made up of:

NUMS 2017
Biology
Kingdom Animalia
Elimination Tool:

73 / 100

Category: Biology

The idea that opposed the idea of abiogenesis was proposed by?

NUMS Mock 4
Biology
Cell Structure and Function

74 / 100

Category: Biology Ch 7 Class 11

It is the smallest eukaryote:

NUMS 2017
Biology
Kingdom Protista
Elimination Tool:

75 / 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:

76 / 100

Category: Biology

Q.31  Due to short distance between lungs and heart, walls of right ventricle are:

77 / 100

Category: Biology Ch 4 Class 11

Pancreas produces secretory granules that help in digestion. These granules after passing through endoplasmic reticulum are pinched off from ______ surface of Golgi apparatus:

78 / 100

Category: Biology Ch 14 Class 11

Which of the following blood vessels have the highest pressure of blood?

NUMS 2020
Biology
Transport
Elimination Tool:

79 / 100

Category: Biology Ch 9 Class 11

Ferns are included in

80 / 100

Category: Biology Ch 3 Class 11

In which of the following location enzymes controlling cellular respiration are present?

81 / 100

Category: Biology Ch 5 Class 11

It is very stable and allows viruses to exist in water, air, and the ground.

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

82 / 100

Category: Biology Ch 3 Class 11

The active site of an enzyme:

83 / 100

Category: Biology

Q37 The muscle contraction depends on:

84 / 100

Category: Biology

Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by?

NUMS Mock 4
Biology
Cell Structure and Function

85 / 100

Category: Biology Ch 8 Class 11

Yeast reproduces by:

PMC 2021 Tested
Biology
Kingdom Fungi
Elimination Tool:

86 / 100

Category: Biology

Below the point at which the cotyledons are attached, the embryo axis is called _______.

NUMS Mock 2
Biology
Kingdom Plantae

87 / 100

Category: Biology Ch 12 Class 11

Parasites capable of living independently of its host at times is called as _______ parasite.

88 / 100

Category: Biology Ch 13 Class 11

Oxygen is transported by combining with ……….. in Hb.

NUMS 2015
Biology
Gaseous Exchange
Elimination Tool:

89 / 100

Category: Biology Ch 11 Class 12

Abiotic components include

90 / 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:

91 / 100

Category: Biology Ch 13 Class 11

Gaseous exchange through the skin is known as ______ respiration.

92 / 100

Category: Biology Ch 1 Class 11

The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:

93 / 100

Category: Biology

Q.52 The plasma pool of antibodies is synthesized from:

94 / 100

Category: Biology Ch 10 Class 12

Natural selection can amplify or diminish variations that are

95 / 100

Category: Biology Ch 14 Class 11

Fibrinogen is necessary for:

NUMS 2014
Biology
Transport
Elimination Tool:

96 / 100

Category: Biology Ch 3 Class 11

What is not true about the induced fit model:

NUMS 2018
Biology
Enzymes
Elimination Tool:

B

97 / 100

Category: Biology

What are the functions of the inter, motor and sensory neurons in a reflex response?

NUMS Mock 4
Biology
Coordination and Control

98 / 100

Category: Biology Ch 13 Class 11

During breathing air from Pharynx enters to:

UHS 2018
Biology
Gaseous Exchange
Elimination Tool:

99 / 100

Category: Biology

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

100 / 100

Category: Biology

The cells which play a very important role in developing immunity are:

NUMS Mock 4
Biology
Transport

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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3 responses to “Biology Practice Test 4”

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  2. Anonymous

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