Biology Practice Test 3

Entry test contains most of the Biology MCQs. FSC Pre-Medical Part 2 Biology book MCQs. HSSC bio questions MCQs. Solved Chapterwise Biology MCQs for first-year 12 class MCQs and 11 class MCQs. Second-year and first-year Biology textbooks chapter-wise MCQs with the answer are provided here. The Biology portion is helpful in MDCAT , NTS NAT , and NUST . PakLearningSpot PLS MCQs Bank website for FREE Entry test preparations




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Biology Practice Test 3

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1 / 100

Category: Biology

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

2 / 100

Category: Biology Ch 10 Class 12

Carolus Linnaeus was believer of

3 / 100

Category: Biology Ch 10 Class 11

Coelom is lined by

4 / 100

Category: Biology Ch 11 Class 11

3-Phosphoglycerate in the presence of ATP and reduced NADP (from the light-dependent stage) is reduced to:

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

5 / 100

Category: Biology

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

NUMS Mock 3
Biology
Chromosomes and DNA

6 / 100

Category: Biology Ch 1 Class 12

Which one is not a nitrogen waste?

NUMS 2018
Biology
Homeostasis
Elimination Tool:

7 / 100

Category: Biology Ch 4 Class 11

Which type of movement through the cell membrane is not an energy-consuming process?

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

8 / 100

Category: Biology Ch 4 Class 11

Which one of the following organelles is required for aerobic respiration?

NTS 2018
Biology
Cell Structure and Function
Elimination Tool:

9 / 100

Category: Biology Ch 12 Class 11

Secretion of pancreatic juice is stimulated by:

NUMS 2019 Cancelled
Biology
Nutrition
Elimination Tool:

10 / 100

Category: Biology Ch 6 Class 11

Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch?

11 / 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:

12 / 100

Category: Biology Ch 3 Class 12

Normal resting membrane potential of a neuron is

13 / 100

Category: Biology

The dark reactions of photosynthesis are characterized by:

NUMS Mock 1
Biology
Bioenergetics

14 / 100

Category: Biology Ch 6 Class 11

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

PMC Practice 4
Biology
Kingdom Prokaryote
Elimination Tool:

15 / 100

Category: Biology Ch 8 Class 12

In birds the male is the homogametic sex. A male bird showing the recessive trait was mated with a female showing the dominant trait of a characteristic governed by a pair of alleles which are sex-linked. What is the probability that the male offspring will show the dominant trait?

NTS 2014
Biology
Variation and Genetics
Elimination Tool:

16 / 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:

17 / 100

Category: Biology Ch 5 Class 11

A bacteriophage consists solely of:

NTS 2011
Biology
Bio-diversity | Variety of Life
Elimination Tool:

18 / 100

Category: Biology

The type of gene interaction in which the effect caused by a gene at one locus interfere with the effect caused by another gene at another locus is known as:

NUMS Mock 1
Biology
Variation and Genetics

19 / 100

Category: Biology Ch 3 Class 11

The number of substrate molecules converted into the product by one molecule of enzyme active site per unit time is called?

PMC Practice 2
Biology
Enzymes
Elimination Tool:

20 / 100

Category: Biology Ch 4 Class 12

Treponema pallidum causes:

NUMS 2016
Biology
Reproduction
Elimination Tool:

21 / 100

Category: Biology Ch 7 Class 12

Mitosis occurs in

22 / 100

Category: Biology Ch 7 Class 12

Microtubules are composed of

23 / 100

Category: Biology Ch 3 Class 12

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

NTS 2014
Biology
Coordination and Control
Elimination Tool:

24 / 100

Category: Biology

Q.32  In the ascent of sap, water moves up in:

25 / 100

Category: Biology Ch 1 Class 12

Which of the following fishes excrete large volume of diluted urine?

26 / 100

Category: Biology Ch 10 Class 12

According to the theory of natural selection, organisms produce:

UHS 2019
Biology
Evolution
Elimination Tool:

27 / 100

Category: Biology Ch 8 Class 12

The position of a gene on chromosome is called

28 / 100

Category: Biology Ch 12 Class 11

Living things that would be the first to experience adverse effects if large amounts of carbon dioxide were taken out of the biosphere are:

NTS 2014
Biology
Nutrition
Elimination Tool:

29 / 100

Category: Biology Ch 1 Class 12

In osmosis water molecules move from area of _______ to _______ through semipermeable memberane

30 / 100

Category: Biology Ch 7 Class 11

Symptoms of malaria occur specifically due to the formation of:

NUMS 2015
Biology
Kingdom Protista
Elimination Tool:

31 / 100

Category: Biology Ch 13 Class 11

_________ respiration is directly involved in the production of energy, necessary for all living activities.

32 / 100

Category: Biology Ch 4 Class 11

The following are all features of eukaryotic cells:

I. chloroplast

II. peroxisome

III. lysosome

IV. mitochondrion

v. nucleus

Which of these have a double membrane?

NTS 2014
Biology
Cell Structure and Function
Elimination Tool:

33 / 100

Category: Biology

Q.54 Which of the following elements are not found in carbohydrates?

34 / 100

Category: Biology

Q3 Assymetrical body is a feature of phylum

35 / 100

Category: Biology Ch 1 Class 12

Secondary cell wall of sclerenchyma cells is impregnated with

36 / 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

37 / 100

Category: Biology Ch 8 Class 11

How many species of fungi are known till now

38 / 100

Category: Biology Ch 5 Class 11

Eukaryotic, multicellular, and consumers belong to ______ kingdom.

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

39 / 100

Category: Biology Ch 11 Class 12

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

40 / 100

Category: Biology

Pseudopodia are:

NUMS Mock 1
Biology
Support and Movement

41 / 100

Category: Biology

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

NUMS Mock 3
Biology
Variation and Genetics

42 / 100

Category: Biology Ch 7 Class 11

Most of the photosynthesis on earth is carried by

43 / 100

Category: Biology Ch 5 Class 12

In some cases, the blastomere can produce complete embryo so, the cleavage will be:

PMC Practice 1
Biology
Growth and Development
Elimination Tool:

44 / 100

Category: Biology Ch 10 Class 11

Organs which produce voice in birds is:

NUMS 2016
Biology
Kingdom Animalia
Elimination Tool:

45 / 100

Category: Biology

Q.50  Which of the following hormones is essential for the production of sperms?

46 / 100

Category: Biology

In semi-conservative replication, which of the following is true regarding the separation of two strands?

NUMS Mock 2
Biology
Chromosomes and DNA

47 / 100

Category: Biology Ch 4 Class 12

In which organism males are haploid

48 / 100

Category: Biology Ch 8 Class 12

The type of gene interaction in which the effect caused by a gene at one locus interfere with the effect caused by another gene at another locus is known as:

NUMS 2018
Biology
Variation and Genetics
Elimination Tool:

49 / 100

Category: Biology Ch 10 Class 12

What was the source of hydrogen for first photosynthetic organisms?

50 / 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:

51 / 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:

52 / 100

Category: Biology Ch 1 Class 11

It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect:

53 / 100

Category: Biology Ch 9 Class 11

The part of sporophyte which is called sporangium is

54 / 100

Category: Biology Ch 12 Class 11

Dietary fiber passes through to several structures after leaving the stomach. In which order does the dietary fiber pass through the structures?

NTS 2015 DUHS and JSMU
Biology
Nutrition
Elimination Tool:

55 / 100

Category: Biology

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

56 / 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:

57 / 100

Category: Biology Ch 9 Class 12

Transgenic organisms:

PMC 2020
Biology
Biotechnology
Elimination Tool:

58 / 100

Category: Biology Ch 14 Class 11

The chemical nature of an antibody is:

NUMS 2016
Biology
Transport
Elimination Tool:

59 / 100

Category: Biology Ch 6 Class 11

The cell wall of Archaebacteria does not contain which of the following?

PMC Sample 1
Biology
Kingdom Prokaryote
Elimination Tool:

60 / 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:

61 / 100

Category: Biology Ch 9 Class 11

Which characteristic led to the evolution of seed?

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

62 / 100

Category: Biology

Q.19 Darwins theory mainly focuses o

63 / 100

Category: Biology Ch 9 Class 11

Which of the following of bryophytes are the simplest one?

64 / 100

Category: Biology Ch 3 Class 12

Thyroid gland requires high amount of:

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

65 / 100

Category: Biology Ch 4 Class 12

Which disorder among the following CANNOT be detected by amniocentesis?..

NTS 2019
Biology
Reproduction
Elimination Tool:

66 / 100

Category: Biology

The sympathetic nervous system causes which of the following?

NUMS Mock 2
Biology
Coordination and Control

67 / 100

Category: Biology Ch 11 Class 11

Which is the correct order of energy transfer from assessory pigments to main photosynthetic pigment?

68 / 100

Category: Biology Ch 5 Class 12

Amniotic fluid in human embryo protects it from:

NUMS 2014
Biology
Growth and Development
Elimination Tool:

69 / 100

Category: Biology

Hemoglobin carries more oxygen than plasma by:

NUMS Mock 1
Biology
Gaseous Exchange

70 / 100

Category: Biology

Which substance might include this molecule?

NUMS Mock 4
Biology
Biological Molecules

71 / 100

Category: Biology Ch 5 Class 11

Viruses are ______ smaller than bacteria

72 / 100

Category: Biology Ch 5 Class 11

Which of the following are composed of proteins only which contain the information that codes for their own replication?

NUMS 2019 Reconduct
Biology
Bio-diversity | Variety of Life
Elimination Tool:

73 / 100

Category: Biology Ch 8 Class 12

The total number of genes present in a particular population, at a particular time is called:

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

74 / 100

Category: Biology Ch 7 Class 12

Asexual offsprings can be produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

75 / 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:

76 / 100

Category: Biology Ch 1 Class 12

Purine and pyrimidine catabolism results in production of

77 / 100

Category: Biology

Q.6  All of the following are the functions of endoplasmic reticulum except:

78 / 100

Category: Biology Ch 4 Class 12

Which one is not a day neutral plant?

79 / 100

Category: Biology Ch 12 Class 12

Development of bark in plants and skin in animals is a method for

80 / 100

Category: Biology Ch 7 Class 11

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

81 / 100

Category: Biology Ch 10 Class 11

Which one of the following is a fish?

NTS 2012
Biology
Kingdom Animalia
Elimination Tool:

82 / 100

Category: Biology Ch 5 Class 11

Which of the following diseases is sexually transmitted?

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

83 / 100

Category: Biology Ch 13 Class 11

When abdomen expands, the number of spiracles open is

84 / 100

Category: Biology Ch 14 Class 11

Which of the following has oxygenated blood?

NUMS 2014
Biology
Transport
Elimination Tool:

85 / 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:

86 / 100

Category: Biology Ch 1 Class 11

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

87 / 100

Category: Biology Ch 4 Class 12

In sexual reproduction, plants have diplohaplontic life cycle with alternating

88 / 100

Category: Biology Ch 3 Class 11

The optimum pH for the enzyme arginase is which of the following?

PMC Sample 2
Biology
Enzymes
Elimination Tool:

89 / 100

Category: Biology Ch 7 Class 12

Period between two consecutive divisions is called

90 / 100

Category: Biology Ch 11 Class 11

The organisms able to use sunlight directly as a source of energy are

91 / 100

Category: Biology Ch 10 Class 12

If allele frequency for a dominant allele is 0.4. What will be the number of heterogeneous individuals if the population is of 100 individuals with diploid traits.

NUMS 2015
Biology
Evolution
Elimination Tool:

92 / 100

Category: Biology Ch 9 Class 12

Transgenic plants are produced when foreign genes are introduced into

93 / 100

Category: Biology Ch 2 Class 11

Which of the following substance is most favorable to form structural component of biological membranes?

94 / 100

Category: Biology Ch 4 Class 11

Lysosomes are also called:

NTS 2012
Biology
Cell Structure and Function
Elimination Tool:

95 / 100

Category: Biology

Q.35 Ribose is a monosaccharide constituent of man

96 / 100

Category: Biology Ch 14 Class 11

The causes of Cyanosis include:

NTS 2010
Biology
Transport
Elimination Tool:

97 / 100

Category: Biology Ch 10 Class 11

Archaeopteryx is a connecting link between:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

98 / 100

Category: Biology Ch 9 Class 11

The male reproductive parts of the flower are called

UHS 2012
Biology
Kingdom Plantae
Elimination Tool:

99 / 100

Category: Biology Ch 8 Class 11

Asexual spores of fungi are called:

NUMS 2020
Biology
Kingdom Fungi
Elimination Tool:

100 / 100

Category: Biology

Which valve action results from an increase in pressure in the ventricles of the heart?

NUMS Mock 3
Biology
Transport

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