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 6 Class 11

In which phase of bacterial growth, does divison at an exponential rate occur?

NUMS 2020
Biology
Kingdom Prokaryote
Elimination Tool:

2 / 100

Category: Biology Ch 5 Class 12

Thyroxine deficiency in adults’ results in a condition called:

UHS 2015
Biology
Growth and Development
Elimination Tool:

3 / 100

Category: Biology Ch 9 Class 11

Which of the following statement about plants is incorrect?

4 / 100

Category: Biology Ch 8 Class 12

Pick the correct option about Drosophila.

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

5 / 100

Category: Biology Ch 8 Class 11

The Fungal Cell wall contains:

NUMS 2018
Biology
Kingdom Fungi
Elimination Tool:

6 / 100

Category: Biology Ch 7 Class 11

Which of the following bacteria are able to release oxygen into the environment?

NTS 2018
Biology
Kingdom Protista
Elimination Tool:

7 / 100

Category: Biology Ch 8 Class 12

A trait whose alleles are present in both males and females but prominent more in one sex than other is a:

NUMS 2016
Biology
Variation and Genetics
Elimination Tool:

8 / 100

Category: Biology Ch 12 Class 12

Mountains of Koh Hindukush come under

9 / 100

Category: Biology Ch 7 Class 11

Based on molecular data euglenoids are thought to be closely related to

10 / 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:

11 / 100

Category: Biology Ch 7 Class 12

_______ is the stage of mitosis characterized by the physical separation of ________ chromatids.

NTS 2019
Biology
Cell Cycle
Elimination Tool:

12 / 100

Category: Biology Ch 1 Class 12

Which one of the following group of animals is homeothermic?

NUMS 2014
Biology
Homeostasis
Elimination Tool:

13 / 100

Category: Biology Ch 3 Class 12

Type of sensations carried by nociceptors are:

14 / 100

Category: Biology Ch 12 Class 11

Which of the following have both internal and external digestion?

NUMS 2016
Biology
Nutrition
Elimination Tool:

15 / 100

Category: Biology Ch 7 Class 11

The only group of algae having no flagellated motile cells at any stage is :

16 / 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:

17 / 100

Category: Biology

Which of the following basic structural level of proteins is indicated by an association of two alpha and two beta chains in the haemoglobin molecule?

NUMS Mock 2
Biology
Biological Molecules

18 / 100

Category: Biology Ch 1 Class 12

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

NUMS 2020
Biology
Homeostasis
Elimination Tool:

19 / 100

Category: Biology Ch 7 Class 11

Which of the following statements is correct?

NUMS 2017
Biology
Kingdom Protista
Elimination Tool:

20 / 100

Category: Biology

Which of the following diseases is sexually transmitted?

NUMS Mock 1
Biology
Bio-diversity | Variety of Life

21 / 100

Category: Biology Ch 11 Class 11

Visible light used in photosynthesis ranges from:

22 / 100

Category: Biology Ch 9 Class 12

A single stranded nucleotide sequence that will hybridize into a certain piece of DNA is

23 / 100

Category: Biology Ch 8 Class 12

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

24 / 100

Category: Biology Ch 7 Class 12

DNA is synthesized and chromosome number is doubled in

25 / 100

Category: Biology Ch 5 Class 11

Numerous opportunist diseases might attack people suffering from the following diseases?

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

26 / 100

Category: Biology Ch 1 Class 11

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

27 / 100

Category: Biology

Q.31 The movement of minerals or water via extracellular pathway is known as:

28 / 100

Category: Biology

Lymph vessels transfer the lymph into blood through_________.

NUMS Mock 3
Biology
Transport

29 / 100

Category: Biology Ch 3 Class 12

Direction of reflex action is from:

NUMS 2019 Reconduct
Biology
Coordination and Control
Elimination Tool:

30 / 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:

31 / 100

Category: Biology Ch 4 Class 12

Which statement is incorrect?

32 / 100

Category: Biology Ch 10 Class 11

Pseudocoelem develops from

33 / 100

Category: Biology Ch 14 Class 11

Regarding structure of the human heart, Chordae Tendinae are present in:

PMC 2020
Biology
Transport
Elimination Tool:

34 / 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:

35 / 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:

36 / 100

Category: Biology Ch 14 Class 11

What will happen, if there is an increase in plasma albumin?

NUMS 2014
Biology
Transport
Elimination Tool:

37 / 100

Category: Biology Ch 9 Class 11

The scientific name of thorn Apple is?

NTS 2015 DUHS and JSMU
Biology
Kingdom Plantae
Elimination Tool:

38 / 100

Category: Biology Ch 10 Class 12

The ultimate source of all changes is:

NUMS 2015
Biology
Evolution
Elimination Tool:

39 / 100

Category: Biology

Q.20  Of the following, which one is not the characteristic of kingdom animalia:

40 / 100

Category: Biology Ch 3 Class 11

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?

NTS 2015 DUHS and JSMU
Biology
Enzymes
Elimination Tool:

41 / 100

Category: Biology

_________ hormone is released from the posterior lobe of the pituitary gland.

NUMS Mock 3
Biology
Coordination and Control

42 / 100

Category: Biology Ch 4 Class 11

Which of the following statement(s) is/are correct regarding a nucleus?

I.Stores wastes and other Substances

II.Contains genetic material

III.Helps in cellular transport system

IV.Control centre of the cell

NTS 2017
Biology
Cell Structure and Function
Elimination Tool:

43 / 100

Category: Biology Ch 13 Class 11

Xerophytes have small thick leaves to;

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

44 / 100

Category: Biology Ch 1 Class 12

Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?

45 / 100

Category: Biology Ch 1 Class 12

Thick, waxy & leathery cuticle around leaves is present in

46 / 100

Category: Biology Ch 3 Class 11

Which of the following statements is incorrect?

PMC Sample 1
Biology
Enzymes
Elimination Tool:

47 / 100

Category: Biology

Q.24 When was the bacteriopbage phenomena rediscovered by D’Herelle?

48 / 100

Category: Biology Ch 3 Class 11

Which of the following factors affect enzyme activity?

NTS 2011
Biology
Enzymes
Elimination Tool:

49 / 100

Category: Biology Ch 6 Class 12

Bacteria were grown in a medium containing heavy isotope of nitrogen (N15) for many generations and all their DNA contained many heavy nitrogen only. A bacterium of this type was transferred to normal medium and allowed to duplicate. After two divisions of heavy DNA is likely to be that:

NTS 2012
Biology
Chromosomes and DNA
Elimination Tool:

50 / 100

Category: Biology Ch 13 Class 12

A lullaby is a song. No song is prose. Some proses are epics.
Conclusions:
I. Some proses are songs.
II. Some epics are lullabies.
III. Some songs are lullabies.
Which of the following is most appropriate in the above case?
a) Only II
b) Only III
c) I, II, and III are inappropriate

51 / 100

Category: Biology Ch 2 Class 12

Which of the following animal has a hydrostatic skeleton:

52 / 100

Category: Biology

The diagram represents two liquids, separated by a membrane through which osmosis can occur.

What movement of molecules will occur?

NUMS Mock 3
Biology
Transport

53 / 100

Category: Biology Ch 2 Class 11

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

NUMS 2019 Reconduct
Biology
Biological Molecules
Elimination Tool:

54 / 100

Category: Biology Ch 6 Class 11

Which of the following is not a component of extracellular matrix in bacteria?

NUMS 2015
Biology
Kingdom Prokaryote
Elimination Tool:

55 / 100

Category: Biology Ch 11 Class 11

The end product of glycolysis in anaerobic respiration is:

PMC 2020
Biology
Bioenergetics
Elimination Tool:

56 / 100

Category: Biology Ch 13 Class 11

In most birds air sacs are _____ in number

57 / 100

Category: Biology

Which of the following, which is the incorrectly paired one?

NUMS Mock 2
Biology
Biology and its Major Fields of Specialization

58 / 100

Category: Biology Ch 5 Class 11

Allium cepa is the scientific name of :

59 / 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:

60 / 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 4
Biology
Coordination and Control
D) IV, III, I and II

61 / 100

Category: Biology Ch 11 Class 11

Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on

62 / 100

Category: Biology Ch 2 Class 11

Which chemical component has the same % in bacterial as well as the mammalian cell?

63 / 100

Category: Biology Ch 11 Class 11

Dark reaction of photosynthesis takes place in _______ of chloroplast.

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

64 / 100

Category: Biology Ch 5 Class 11

First infectious disease against which effective method of prevention developed was a _______:

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

65 / 100

Category: Biology Ch 8 Class 12

In question number 2 what will be frequency of dwarf plant in F2

66 / 100

Category: Biology Ch 6 Class 12

Mutations can occur in:

NUMS 2016
Biology
Chromosomes and DNA
Elimination Tool:

67 / 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:

68 / 100

Category: Biology Ch 2 Class 12

Type of sclerenchyma cells found in seed coats are:

NUMS 2015
Biology
Support and Movement
Elimination Tool:

69 / 100

Category: Biology Ch 13 Class 11

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?

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

70 / 100

Category: Biology

Q.3  Which statement about cell membrane is incorrect?

71 / 100

Category: Biology Ch 10 Class 12

Genetic equilibrium is a:

NTS 2019
Biology
Evolution
Elimination Tool:

72 / 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:

73 / 100

Category: Biology

Q.53 Which of these is the best treatment for osteoarthritis?

74 / 100

Category: Biology Ch 6 Class 11

The function of a cell wall in prokaryotes is:

PMC Practice 1
Biology
Kingdom Prokaryote
Elimination Tool:

75 / 100

Category: Biology Ch 12 Class 11

Secretion of pancreatic juice is stimulated by:

NUMS 2019 Cancelled
Biology
Nutrition
Elimination Tool:

76 / 100

Category: Biology Ch 9 Class 11

Why do Bryophytes and ferns both require water for fertilization?

NUMS 2015
Biology
Kingdom Plantae
Elimination Tool:

77 / 100

Category: Biology Ch 13 Class 11

Booklungs serve the function of respiration in:

NTS 2014
Biology
Gaseous Exchange
Elimination Tool:

78 / 100

Category: Biology Ch 11 Class 11

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

79 / 100

Category: Biology Ch 6 Class 11

A Dutch scientist firstly observed very small creatures in

PMC Practice 6
Biology
Kingdom Prokaryote
Elimination Tool:

80 / 100

Category: Biology Ch 3 Class 11

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

PMC Practice 3
Biology
Enzymes
Elimination Tool:

81 / 100

Category: Biology Ch 5 Class 12

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

NTS 2016 SMBBMC
Biology
Growth and Development
Elimination Tool:

82 / 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:

83 / 100

Category: Biology Ch 8 Class 12

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

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

84 / 100

Category: Biology Ch 6 Class 12

“Law of independent assortment” states:

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

85 / 100

Category: Biology Ch 5 Class 11

Which of the following is not related to the enveloped virus?

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

86 / 100

Category: Biology Ch 6 Class 12

Phenotype is:

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

87 / 100

Category: Biology Ch 11 Class 11

Chlorophyll molecule resemble the haem group of hemoglobin, the main difference between these two molecule is that chlorophyll has ____ ion.

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

88 / 100

Category: Biology Ch 9 Class 12

The genetically engineered vaccine is available for which of the following hepatitis virus?

PMC Practice 5
Biology
Biotechnology
Elimination Tool:

89 / 100

Category: Biology Ch 6 Class 12

The particular array of chromosomes that an individual possesses is called its:

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

90 / 100

Category: Biology

Q.41  Corpus luteum is yellow glandular mass and is important source of:

91 / 100

Category: Biology Ch 8 Class 11

Aspergillosis is a fungal infection and occurs only in _______:

NUMS 2020
Biology
Kingdom Fungi
Elimination Tool:

92 / 100

Category: Biology Ch 5 Class 12

Human embryo remains enclosed in:

PMC Practice 1
Biology
Growth and Development
Elimination Tool:

93 / 100

Category: Biology

The region of the chromosome or, more specifically, the length of the DNA molecule, which has a particular function is called _______.

NUMS Mock 2
Biology
Chromosomes and DNA

94 / 100

Category: Biology Ch 3 Class 12

Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering:

95 / 100

Category: Biology Ch 4 Class 11

Autophagosomes are

96 / 100

Category: Biology Ch 4 Class 11

Spherical or tubular membranes which separate the material present in endoplasmic reticulum from that of cytoplasmic material are called

97 / 100

Category: Biology Ch 1 Class 12

Ammonia is chief excretory product in:

NUMS 2014
Biology
Homeostasis
Elimination Tool:

98 / 100

Category: Biology Ch 4 Class 12

In cloning, nucleus is introduced into

99 / 100

Category: Biology

Which type of protein structure contains the three dimensional structure?

NUMS Mock 4
Biology
Biological Molecules

100 / 100

Category: Biology Ch 8 Class 11

Those fungi which can grow only on their living host and cannot be grown on available defined growth culture medium e.g. various mildews and most rust species are called?

PMC Sample 2
Biology
Kingdom Fungi
Elimination Tool:

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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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