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.

PLS Academy

Get Access to 20 thousands+ MCQs Including Topical MCQs, Practice Tests, Mock Tests, Solved Past Papers, Flashcards, Notes, FLPS, and Much More.

0%
1739
Created by Ali Durrani

MDCAT Practice Tests

Biology Practice Test 3

This is the Free Access to Limited MCQs. Enroll to PLS Boost Premium Bundle to Get More MCQs HERE

1 / 100

Category: Biology

Q.34 If the non-protien part is loosely attached to the protein part in the enzyme, it is known as

2 / 100

Category: Biology Ch 1 Class 11

Which character differentiates living things from non-living organisms?

3 / 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:

4 / 100

Category: Biology Ch 2 Class 12

The multinucleated mass of the bone-breaking cells is called:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

5 / 100

Category: Biology Ch 6 Class 12

An anticodon is the sequence of the nitrogenous bases on the:

NTS 2014
Biology
Chromosomes and DNA
Elimination Tool:

6 / 100

Category: Biology

The following statements are about enzymes:

1. They are globular proteins

2. They can be inhibited by competitive inhibitors

3. They are formed in the smooth endoplasmic reticulum

4. There are only found attached to Plasma membranes in the cell

Which statements are correct for all enzymes?

NUMS Mock 3
Biology
Enzymes

7 / 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:

8 / 100

Category: Biology

Q.12 An enzyme without its cofactor is called.

9 / 100

Category: Biology

Mutations can occur in:

NUMS Mock 4
Biology
Chromosomes and DNA

10 / 100

Category: Biology Ch 7 Class 12

Diplotene is the sub-stage of:

NTS 2011
Biology
Cell Cycle
Elimination Tool:

11 / 100

Category: Biology Ch 11 Class 11

Stroma of chloroplast carries the fixation of:

NUMS 2014
Biology
Bioenergetics
Elimination Tool:

12 / 100

Category: Biology

Q.30 The structure of which bacteriophages resembles a tadpole?

13 / 100

Category: Biology Ch 2 Class 12

Many _______ expel a large amount of water by special structures called contractile vacuoles:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

14 / 100

Category: Biology

Q.23   The vectors for disease spread belong to which of the following phylum?

15 / 100

Category: Biology Ch 6 Class 12

The biochemical analysis of a sample of DNA shows that 32% of the nitrogenous bases are cytosine. What is the total % of adenine and uracil in RNA transcribed from this DNA?

NTS 2015 SMBBMC
Biology
Chromosomes and DNA
Elimination Tool:

16 / 100

Category: Biology

In which of the following growth phases, the number of bacteria increases the most rapidly?

NUMS Mock 4
Biology
Kingdom Protista

17 / 100

Category: Biology Ch 11 Class 11

The oxidation of PGAL during glycolysis yields ____ molecules.

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

18 / 100

Category: Biology Ch 9 Class 12

Treatment of hereditary disorders by gene manipulations is called:

NUMS 2016
Biology
Biotechnology
Elimination Tool:

19 / 100

Category: Biology

Q.16 Example of convergent evolution is

20 / 100

Category: Biology Ch 1 Class 12

When the temperature of the surrounding environment rises, body responds by:

PMC 2020
Biology
Homeostasis
Elimination Tool:

21 / 100

Category: Biology Ch 4 Class 12

In asexual reproduction offspring are produced by

22 / 100

Category: Biology Ch 9 Class 11

What is the name of the structure of the leaf that attaches the leaf to the stem?

PMC Sample 2
Biology
Kingdom Plantae
Elimination Tool:

23 / 100

Category: Biology Ch 7 Class 12

Microtubules are composed of

24 / 100

Category: Biology Ch 1 Class 12

Which of the following occurs in the body in response to the secretion of Glucagon?

NUMS 2020
Biology
Homeostasis
Elimination Tool:

25 / 100

Category: Biology Ch 2 Class 11

Which type of protein structure contains the three dimensional structure?

NTS 2013
Biology
Biological Molecules
Elimination Tool:

26 / 100

Category: Biology

Four plants are present in different environmental conditions. Plant A is present in a warm climate with continuous rainfall, plant B is present in a cool forest, plant C is present in a warm climate with little breeze, while plant D is present in a warm climate with high wind speed. Which one of the above plants will have the highest rate of transpiration?

NUMS Mock 2
Biology
Gaseous Exchange

27 / 100

Category: Biology Ch 5 Class 11

Numerous opportunistic diseases might attack a person suffering from which of the following diseases?

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

28 / 100

Category: Biology Ch 10 Class 12

Key point to Lamarck’s view about organic evolution is that every offspring

NUMS 2014
Biology
Evolution
Elimination Tool:

29 / 100

Category: Biology Ch 6 Class 11

The shape of Cocci bacteria is:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

30 / 100

Category: Biology Ch 13 Class 11

As pH of blood decreases, H+ ions increases, which combine the proteins part of hemoglobin, to decrease its ability to bind with:

NUMS 2019 Reconduct
Biology
Gaseous Exchange
Elimination Tool:

31 / 100

Category: Biology

The function of respiratory passage, Cilia is to keep the airways clear of:

NUMS Mock 4
Biology
Gaseous Exchange

32 / 100

Category: Biology Ch 11 Class 11

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

33 / 100

Category: Biology Ch 4 Class 11

Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called

34 / 100

Category: Biology Ch 8 Class 11

The Fungal Cell wall contains:

NUMS 2018
Biology
Kingdom Fungi
Elimination Tool:

35 / 100

Category: Biology Ch 7 Class 12

The second stage of the Prophase of Meiosis, following Leptotene, during which homologous chromosomes begin to pair is called:

NTS 2019
Biology
Cell Cycle
Elimination Tool:

36 / 100

Category: Biology Ch 5 Class 11

Virus is a _____ entity among living and non-living.

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

37 / 100

Category: Biology Ch 4 Class 12

Referring to sexual reproduction, humans are:

NTS 2018
Biology
Reproduction
Elimination Tool:

38 / 100

Category: Biology Ch 9 Class 11

The gametophyte of Ulva is:

NUMS 2014
Biology
Kingdom Plantae
Elimination Tool:

39 / 100

Category: Biology Ch 2 Class 11

Which bond provides stability to complex carbohydrate molecules?

40 / 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:

41 / 100

Category: Biology

Q.40  Which statement is incorrect:

42 / 100

Category: Biology Ch 2 Class 12

Poliomyelitis normally affects the:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

43 / 100

Category: Biology Ch 8 Class 12

A pea plant with yellow seed was crossed to a plant having green seeds. What will happen in F1; if plants are true breeding

44 / 100

Category: Biology

Q.19 Sm0oth endoplasmic reticulum is abundant in which types of cells?

45 / 100

Category: Biology

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

NUMS Mock 2
Biology
Kingdom Plantae

46 / 100

Category: Biology Ch 13 Class 12

Conversion of ammonium into nitrates is:

UHS 2018
Biology
Man and His Environment
Elimination Tool:

47 / 100

Category: Biology Ch 6 Class 11

The DNA of the bacterium is present in a distinct region called:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

48 / 100

Category: Biology Ch 1 Class 12

Rapid movement of leaves of mimosa on touching is an example of :

49 / 100

Category: Biology Ch 6 Class 12

Highly condensed portions of the chromatin are called:

NTS 2011
Biology
Chromosomes and DNA
Elimination Tool:

50 / 100

Category: Biology

Why do some vegetables lose water when salt is applied to them?

NUMS Mock 3
Biology
Transport

51 / 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:

52 / 100

Category: Biology Ch 7 Class 11

Which of the following results from conjugation in paramecium?

PMC Practice 3
Biology
Kingdom Protista
Elimination Tool:

53 / 100

Category: Biology Ch 8 Class 12

The gene which controls ABO group has how many alleles in an individual

54 / 100

Category: Biology Ch 2 Class 11

Human cells maintain concentration gradients across their plasma membranes, such that there is a high sodium concentration outside the cell and a high potassium concentration inside the cell.

Suppose that within the cell membrane are sodium leak channels or carrier proteins. These channels would allow sodium to:

NTS 2017
Biology
Biological Molecules
Elimination Tool:

55 / 100

Category: Biology Ch 10 Class 12

Which scientist does not match his achievements

56 / 100

Category: Biology Ch 6 Class 11

A Dutch scientist firstly observed very small creatures in

PMC Practice 6
Biology
Kingdom Prokaryote
Elimination Tool:

57 / 100

Category: Biology Ch 2 Class 11

A complex substance which on hydrolysis yields polyhydroxy aldehyde or ketone subunits is called:

58 / 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:

59 / 100

Category: Biology Ch 14 Class 11

About 55% of the volume of the human blood is?

NTS 2015 SMBBMC
Biology
Transport
Elimination Tool:

60 / 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:

61 / 100

Category: Biology Ch 14 Class 11

The valve between right atrium and right ventricle is called:

NUMS 2014
Biology
Transport
Elimination Tool:

62 / 100

Category: Biology Ch 7 Class 12

In case of neurons, post mitotic cell escapes cell cycle and remain in _______ phase whthout proliferating further

63 / 100

Category: Biology Ch 4 Class 11

Which of the following is not a basic unit of the cell?

NUMS 2016
Biology
Cell Structure and Function
Elimination Tool:

64 / 100

Category: Biology Ch 10 Class 11

The function of coelom is

65 / 100

Category: Biology Ch 6 Class 12

Rate of DNA replication by DNA polymerase is

66 / 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

67 / 100

Category: Biology

Which vertebrae together are called pelvic vertebrae?

NUMS Mock 2
Biology
Support and Movement

68 / 100

Category: Biology Ch 7 Class 11

All of the following organisms belong to the kingdom protista EXCEPT:

NTS 2012
Biology
Kingdom Protista
Elimination Tool:

69 / 100

Category: Biology Ch 3 Class 11

A three dimensional dcavity bearing a specific charge by which the enzyme reacts with its substrate is called

70 / 100

Category: Biology Ch 6 Class 11

Gram negative bacteria are stained pink by the use of:

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

71 / 100

Category: Biology Ch 11 Class 12

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

72 / 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

73 / 100

Category: Biology

Q.39 If a cross section of a sarcomere is seen, each myosin is surrounded by how many actin molecules?

74 / 100

Category: Biology Ch 4 Class 11

Which of the statement about cell membrane is not true?

75 / 100

Category: Biology

Which was the first virus to be successfully crystalized?

NUMS Mock 1
Biology
Bio-diversity | Variety of Life

76 / 100

Category: Biology Ch 14 Class 11

The lymph vessels empty in:

NUMS 2015
Biology
Transport
Elimination Tool:

77 / 100

Category: Biology Ch 14 Class 11

Autoimmune diseases act at the principle of:

NUMS 2020
Biology
Transport
Elimination Tool:

78 / 100

Category: Biology Ch 6 Class 12

During DNA replication ______ attaches the fragment to the lagging strand.

NUMS 2019 Reconduct
Biology
Chromosomes and DNA
Elimination Tool:

79 / 100

Category: Biology Ch 10 Class 11

Sea horse is included in:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

80 / 100

Category: Biology Ch 12 Class 11

Absorption of digested food occurs mainly in:

NUMS 2014
Biology
Nutrition
Elimination Tool:

81 / 100

Category: Biology Ch 2 Class 11

Which of these is not a disaccharide?

NUMS 2018
Biology
Biological Molecules
Elimination Tool:

82 / 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

83 / 100

Category: Biology Ch 2 Class 11

Which of the following has the ability to develop ester linkage with the OH group of Pentose sugar?

NUMS 2017
Biology
Biological Molecules
Elimination Tool:

84 / 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:

85 / 100

Category: Biology Ch 1 Class 12

When a frog is kept in water for some time it sheds a thin covering of skin called ____

NUMS 2014
Biology
Homeostasis
Elimination Tool:

86 / 100

Category: Biology Ch 13 Class 11

In most birds air sacs are _____ in number

87 / 100

Category: Biology Ch 3 Class 11

Upon increasing the temperature the shape of enzyme’s active site?

PMC Sample 2
Biology
Enzymes
Elimination Tool:

88 / 100

Category: Biology Ch 8 Class 11

The most common example of members of the kingdom fungi is/are:

NUMS 2015
Biology
Kingdom Fungi
Elimination Tool:

89 / 100

Category: Biology Ch 9 Class 12

The Plasmid pBR322 has antibiotic resistance genes for:

UHS 2019
Biology
Biotechnology
Elimination Tool:

90 / 100

Category: Biology Ch 5 Class 11

HIV is also known as:

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

91 / 100

Category: Biology

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

92 / 100

Category: Biology Ch 10 Class 11

Platyhelminthes means:

NUMS 2017
Biology
Kingdom Animalia
Elimination Tool:

93 / 100

Category: Biology

The term “Loss of appetite” refers to disease:

NUMS Mock 3
Biology
Nutrition

94 / 100

Category: Biology Ch 4 Class 11

Chief material present in the cell wall of plants, fungal, and prokaryotic cells is:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

95 / 100

Category: Biology Ch 9 Class 11

Mosses are included in sub-division

96 / 100

Category: Biology Ch 2 Class 11

The branch of biology which deals with the study of chemical compounds and the chemical processes in the fliving organisms is called:

97 / 100

Category: Biology Ch 5 Class 12

When a fetus is in the uterus, what carries oxygen away from the placenta?

NTS 2013
Biology
Growth and Development
Elimination Tool:

98 / 100

Category: Biology Ch 2 Class 11

Most simple amino acid is:

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

99 / 100

Category: Biology Ch 3 Class 12

Which type of sensory structures carrying the touch sensations are present in papillae extending into ridges of the fingertips?

100 / 100

Category: Biology Ch 5 Class 11

Those organisms which can prepare their own food from simple inorganic material and can store energy are called

Your score is

The average score is 59%

0%

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.

JazakAllah

BIG SALE! FLAT 50% OFF

Protected