Biology Practice Test 5

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 5

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1 / 100

Category: Biology Ch 13 Class 11

The number of stomata present per cm2 of leaf is:

PMC Sample 2
Biology
Gaseous Exchange
Elimination Tool:

2 / 100

Category: Biology Ch 10 Class 12

The process that has transformed life on earth from its earliest forms to vast diversity is

3 / 100

Category: Biology

Q.62 The animals that have features of both mammals and reptiles are?

4 / 100

Category: Biology Ch 10 Class 11

The animals in which coelom is formed due to splitting of mesocerm are known as

5 / 100

Category: Biology Ch 10 Class 11

Scales are present in:

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

6 / 100

Category: Biology Ch 2 Class 11

Among the most abundant biomolecules, _____ is the most abundant one on earth.

NUMS 2016
Chemistry
Biological Molecules
Elimination Tool:

7 / 100

Category: Biology Ch 6 Class 12

In alkaptonuria

8 / 100

Category: Biology Ch 2 Class 12

The process of cartilage formation is known as:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

9 / 100

Category: Biology Ch 13 Class 12

Which one is a non-renewable resource?

10 / 100

Category: Biology

Given figures shows:

NUMS Mock 4
Biology
Gaseous Exchange

11 / 100

Category: Biology Ch 14 Class 11

In human heart, the left atrium receives:

PMC 2020
Biology
Transport
Elimination Tool:

12 / 100

Category: Biology Ch 6 Class 12

A tortion of chromatin that is condensed only during cell division is

13 / 100

Category: Biology Ch 6 Class 11

The process of recombination in prokaryotes takes place in which of the following ways?

PMC Sample 2
Biology
Kingdom Prokaryote
Elimination Tool:

14 / 100

Category: Biology

Q.13 Cellulose is the major component of?

15 / 100

Category: Biology Ch 8 Class 12

If we cross round (RR) seeded plants with wrinkled (rr) seed plant, and get F1 round seeded. In F2 generation, what will be genotypic ration of plants try Punnett square method?

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

16 / 100

Category: Biology Ch 2 Class 11

Glucose and fructose join together through _____ to form sucrose.

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

17 / 100

Category: Biology

Q.38 Which of the following best describes a coenzyme?

18 / 100

Category: Biology Ch 7 Class 11

Photosynthesis is absent in which of the following:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

19 / 100

Category: Biology Ch 8 Class 11

Fungi can tolerate pH from

20 / 100

Category: Biology Ch 10 Class 12

Modification in the organization of the basic pentadactyl limb structure found in vertebrates provides good evidence for the principle of:

NUMS 2020
Biology
Evolution
Elimination Tool:

21 / 100

Category: Biology

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

NUMS Mock 4
Biology
Reproduction

22 / 100

Category: Biology Ch 7 Class 11

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

NTS 2018
Biology
Kingdom Protista
Elimination Tool:

23 / 100

Category: Biology

Q.21 The spent energy in the form pf ADP is regeneratèd by mitochondria into which of the following forni?

24 / 100

Category: Biology

A man who has type AB blood cannot father a child with type ___ blood, because he would pass on either the ___ or the B allele to all of his offspring.

NUMS Mock 4
Biology
Variation and Genetics

25 / 100

Category: Biology Ch 1 Class 12

Most of the marine invertebrates are

26 / 100

Category: Biology Ch 1 Class 12

Purine and pyrimidine catabolism results in production of

27 / 100

Category: Biology Ch 2 Class 12

Pick the mismatched pair for birds:

NUMS 2015
Biology
Support and Movement
Elimination Tool:

28 / 100

Category: Biology Ch 3 Class 11

A cofactor made of inorganic ion which is detachable is called

29 / 100

Category: Biology Ch 14 Class 11

T-Lymphocytes are matured in thymus glands and they are produced in:

NUMS 2016
Biology
Transport
Elimination Tool:

30 / 100

Category: Biology Ch 14 Class 11

Which of the following has oxygenated blood?

NUMS 2014
Biology
Transport
Elimination Tool:

31 / 100

Category: Biology

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

NUMS Mock 4
Biology
Kingdom Protista

32 / 100

Category: Biology Ch 4 Class 11

Which of the statement about cell membrane is not true?

33 / 100

Category: Biology

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

34 / 100

Category: Biology Ch 6 Class 12

In Maxam – Gilbert method, DNA threads are:

NUMS 2015
Biology
Chromosomes and DNA
Elimination Tool:

35 / 100

Category: Biology

Q.53____________________are among smallest known virus

36 / 100

Category: Biology Ch 3 Class 11

An activated enzyme consisting of polypeptide chain and a cofactor is called:

37 / 100

Category: Biology Ch 4 Class 11

In a typical compound microscope the resolution is 2 μm. Which is about _____ that of naked eye.

NUMS 2019 Reconduct
Biology
Cell Structure and Function
Elimination Tool:

38 / 100

Category: Biology

Which of the following organelles are present in all the bacteria?

NUMS Mock 1
Biology
Kingdom Prokaryote

39 / 100

Category: Biology Ch 7 Class 12

Which of the following statements is true about metaphase?

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

40 / 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?

41 / 100

Category: Biology Ch 9 Class 11

Why do Bryophytes and ferns both require water for fertilization?

NUMS 2015
Biology
Kingdom Plantae
Elimination Tool:

42 / 100

Category: Biology Ch 3 Class 11

Due to the similarity of structure, competitive inhibitors may be selected by the _______ site.

NUMS 2019 Reconduct
Biology
Enzymes
Elimination Tool:

43 / 100

Category: Biology Ch 6 Class 11

The size of Spirochete is

44 / 100

Category: Biology Ch 3 Class 11

The optimum pH of catalase is:

NUMS 2018
Biology
Enzymes
Elimination Tool:

45 / 100

Category: Biology Ch 11 Class 11

Dark reaction of photosynthesis takes place in _______ of chloroplast.

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

46 / 100

Category: Biology Ch 1 Class 12

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

PMC 2020
Biology
Homeostasis
Elimination Tool:

47 / 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?

48 / 100

Category: Biology

Which of the following transport mechanism induces conformational change in protein?

49 / 100

Category: Biology

Booklungs serve the function of respiration in:

NUMS Mock 3
Biology
Gaseous Exchange

50 / 100

Category: Biology

The position of an organism in a food chain of an ecosystem called:

NUMS Mock 2
Biology
Man and His Environment

51 / 100

Category: Biology Ch 9 Class 12

By PCR we mean:

UHS 2018
Biology
Biotechnology
Elimination Tool:

52 / 100

Category: Biology Ch 14 Class 11

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

NTS 2015 SMBBMC
Biology
Transport
Elimination Tool:

53 / 100

Category: Biology Ch 6 Class 11

In a bacterial cell, plasma membrane with all things present within it is called:

PMC Sample 3
Biology
Kingdom Prokaryote
Elimination Tool:

54 / 100

Category: Biology Ch 6 Class 11

Bacteria having a tuft of flagella at one end are called:

NTS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

55 / 100

Category: Biology Ch 13 Class 11

The blood enters the _____ side of heart

56 / 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:

57 / 100

Category: Biology

Q.25  The substrate of the trypsin is:

58 / 100

Category: Biology Ch 11 Class 11

FADH2 is produced during which step of Krebs cycle?

NUMS 2015
Biology
Bioenergetics
Elimination Tool:

59 / 100

Category: Biology Ch 13 Class 12

Balance in the nutrient cycle can be upset when

60 / 100

Category: Biology

Q.63 Which hormone is produced mainly by corpus luteum in she ovary following ovulation?

61 / 100

Category: Biology Ch 6 Class 11

Which of the following structure primarily helps in attachment of bacteria on various surfaces?

62 / 100

Category: Biology Ch 7 Class 12

Reverse of prophase is

63 / 100

Category: Biology Ch 2 Class 12

Molluscs have an exoskeleton made up of:

NTS 2016 DUHS & JSMU
Biology
Support and Movement
Elimination Tool:

64 / 100

Category: Biology Ch 11 Class 12

Study of relationship of organisms to their environment is

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 Ch 2 Class 12

Which of the following statement about an arthropod exoskeleton is incorrect?

67 / 100

Category: Biology Ch 8 Class 11

Root like structure in saprotrophic fungi are called

68 / 100

Category: Biology Ch 11 Class 12

Which statement is true?

69 / 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:

70 / 100

Category: Biology Ch 6 Class 11

Germ theory was presented by:

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

71 / 100

Category: Biology Ch 13 Class 11

When abdomen expands, the number of spiracles open is

72 / 100

Category: Biology Ch 13 Class 12

Process that supplies food to living things through decaying and decomposition is called

73 / 100

Category: Biology Ch 12 Class 11

Undigested food in cockroach is stored in:

NUMS 2015
Biology
Nutrition
Elimination Tool:

74 / 100

Category: Biology

Q4 A condition with abnormal amount of fats is called:

75 / 100

Category: Biology Ch 7 Class 12

Which of the following sub stages does not occur in prophase I?

NTS 2015 SMBBMC
Biology
Cell Cycle
Elimination Tool:

76 / 100

Category: Biology

Identify the incorrect statement about Charles Darwin’s theory:

NUMS Mock 1
Biology
Evoloution

77 / 100

Category: Biology Ch 3 Class 12

Chlorosis, i.e., yellowish hue on the leaves results from

78 / 100

Category: Biology

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

NUMS Mock 2
Biology
Gaseous Exchange

79 / 100

Category: Biology Ch 11 Class 11

Exposure to ______ light is effective in photosynthesis as it enables guard cells to take up K+ and open the stomata.

NUMS 2015
Biology
Bioenergetics
Elimination Tool:

80 / 100

Category: Biology

The inhibitor which closely resembles the substrate in its molecular structure and inhibits the enzyme activity by binding to the active site of the enzyme is called:

NUMS Mock 1
Biology
Enzymes

81 / 100

Category: Biology Ch 3 Class 11

What is not true about the induced fit model:

NUMS 2018
Biology
Enzymes
Elimination Tool:

B

82 / 100

Category: Biology

Which of the following is correct in humans?

NUMS Mock 1
Biology
Reproduction

83 / 100

Category: Biology Ch 3 Class 11

An activated enzyme made of polypeptide chain and a cofactor is?

PMC Practice 2
Biology
Enzymes
Elimination Tool:

84 / 100

Category: Biology

Q.7     Ribosomes are assembled in the nucleolus and then exported to cytoplasm via:

85 / 100

Category: Biology

Red-green color-blindness is an X-linked recessive disorder. Jacob’s paternal grandfather and father are both color-blind, but his mother has two normal alleles. What is the probability that Jacob is red-green color-blind?

NUMS Mock 2
Biology
Variation and Genetics

86 / 100

Category: Biology Ch 9 Class 12

The DNA that has been altered and which now contains length of nucleotides from two different organisms is called a:

PMC 2020
Biology
Biotechnology
Elimination Tool:

87 / 100

Category: Biology Ch 9 Class 12

The deficiency of which of the following cause severe combined immunodeficiency

PMC Sample 3
Biology
Biotechnology
Elimination Tool:

88 / 100

Category: Biology

The animals that feed on organic debris from decomposing plants and animals are called:

NUMS Mock 1
Biology
Man and His Environment

89 / 100

Category: Biology

Q3 Assymetrical body is a feature of phylum

90 / 100

Category: Biology

When both the alleles of a gene pair are same, the organism is said to be:

NUMS Mock 3
Biology
Variation and Genetics

91 / 100

Category: Biology Ch 1 Class 12

The technique used for the non-surgical removal of kidney stones is called:

NUMS 2016
Biology
Homeostasis
Elimination Tool:

92 / 100

Category: Biology Ch 3 Class 11

Which one forms the raw material for coenzymes?

93 / 100

Category: Biology

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

94 / 100

Category: Biology Ch 3 Class 11

A student of chemical engineering mistakenly engulfed the toxic compound “A” which was a potent inhibitor of a certain enzyme. He was immediately brought to a hospital where the doctor injected, intravenously, substrate “B” to minimize the toxic effect of Compound A. His life was saved from serious damage. The treatment method shows that compound A was a ______ inhibitor.

UHS 2019
Biology
Enzymes
Elimination Tool:

95 / 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

96 / 100

Category: Biology Ch 14 Class 11

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

NUMS 2016
Biology
Transport
Elimination Tool:

97 / 100

Category: Biology Ch 3 Class 11

Enzymes work by lowering the ______ of the reactions they catalyse:

PMC 2020
Biology
Enzymes
Elimination Tool:

98 / 100

Category: Biology Ch 7 Class 12

Microtubules are composed of

99 / 100

Category: Biology Ch 4 Class 12

Colour of corpus luteum is:

NUMS 2018
Biology
Reproduction
Elimination Tool:

100 / 100

Category: Biology Ch 3 Class 12

Which of the following is the function of adrenaline?

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

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