Biology Practice Test 4

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 4

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1 / 100

Category: Biology Ch 4 Class 12

Which statement is incorrect?

2 / 100

Category: Biology Ch 2 Class 11

Which one is the basic element of organic compounds ?

3 / 100

Category: Biology Ch 10 Class 12

______ occurs because natural selection gives some alleles a better chance of survival than others:

PMC 2020
Biology
Evolution
Elimination Tool:

4 / 100

Category: Biology

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

NUMS Mock 4
Biology
Biological Molecules

5 / 100

Category: Biology Ch 6 Class 11

Which of the following types of bacterial reproduction is most similar to mitosis?

PMC Practice 2
Biology
Kingdom Prokaryote
Elimination Tool:

6 / 100

Category: Biology Ch 10 Class 12

Which of the following scientists contributed a lot to “modern synthetic theory of organic evolution:

NUMS 2014
Biology
Evolution
Elimination Tool:

7 / 100

Category: Biology

Germ layers are formed in which stage of development?

NUMS Mock 2
Biology
Growth and Development

8 / 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:

9 / 100

Category: Biology Ch 13 Class 12

Flow of energy in an ecosystem is:

NUMS 2014
Biology
Man and His Environment
Elimination Tool:

10 / 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:

11 / 100

Category: Biology Ch 2 Class 11

Reactions in which simple substances are combined to form complex substances are called:

12 / 100

Category: Biology Ch 1 Class 12

The concentration of Na ions in the body fluids is controlled by the ____ hormone.

NTS 2012
Biology
Homeostasis
Elimination Tool:

13 / 100

Category: Biology

When the concentration of the external medium is equal to the concentration of the internal medium of a cell, the situation is called:

NUMS Mock 1
Biology
Biological Molecules

14 / 100

Category: Biology Ch 10 Class 11

The radial symmetry is found in the animals of

15 / 100

Category: Biology Ch 10 Class 11

Organs which produce voice in birds is:

NUMS 2016
Biology
Kingdom Animalia
Elimination Tool:

16 / 100

Category: Biology Ch 6 Class 12

The combination of XXY (47) chromosomes results in:

NTS 2012
Biology
Chromosomes and DNA
Elimination Tool:

17 / 100

Category: Biology Ch 9 Class 12

Which statement is not true about PCR?

18 / 100

Category: Biology Ch 2 Class 11

When the hydroxyl group, -OH, of the carboxyl group, -COOH, of an amino acid is linked with the hydrogen of the amino group, -NH2, of another amino acid, ______ is released and a peptide bond is formed.

NUMS 2019 Reconduct
Biology
Biological Molecules
Elimination Tool:

19 / 100

Category: Biology Ch 1 Class 11

Which one is not correct for a productive theory?

20 / 100

Category: Biology Ch 11 Class 11

Which of the following is a compensation point:

21 / 100

Category: Biology

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

NUMS Mock 2
Biology
Growth and Development

22 / 100

Category: Biology

Q.27   The stimulus for the production of more gastrin hormone from the gastric endocrine lining is:

23 / 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:

24 / 100

Category: Biology Ch 2 Class 12

Endoskeleton is secreted by:

25 / 100

Category: Biology

Lamarck is best known for his theory of:

NUMS Mock 3
Biology
Evolution

26 / 100

Category: Biology Ch 7 Class 11

These protists are mostly unicellular (a few are colonial) organisms with spherical or elongated bodies with a single central nucleus. They possess from one to many long, whip-like flagella that enable them to move. Flagellates move rapidly, pulling themselves forward by lashing flexible flagella that are usually located at the anterior end. Examples include trypanosome, euglena, etc.

The above give lines indicate which of the following group of protozoa:

NUMS 2017
Biology
Kingdom Protista
Elimination Tool:

27 / 100

Category: Biology Ch 5 Class 12

The active sites of all enzyme are formed by:

NUMS 2016
Biology
Growth and Development
Elimination Tool:

28 / 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:

29 / 100

Category: Biology Ch 11 Class 11

Molecular formula of chlorophyll ‘a’ molecule is:

30 / 100

Category: Biology Ch 7 Class 12

Synthesis of microtubules increases in:

UHS 2018
Biology
Cell Cycle
Elimination Tool:

31 / 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

32 / 100

Category: Biology Ch 2 Class 12

Type of sclerenchyma cells found in seed coats are:

NUMS 2015
Biology
Support and Movement
Elimination Tool:

33 / 100

Category: Biology Ch 7 Class 12

Exchange of segments between homologous chromosomes is called:

UHS 2012
Biology
Cell Cycle
Elimination Tool:

34 / 100

Category: Biology Ch 10 Class 12

Most of the fossils are found in which of the following?

PMC Sample 1
Biology
Evolution
Elimination Tool:

35 / 100

Category: Biology Ch 9 Class 11

The male reproductive parts of the flower are called

UHS 2012
Biology
Kingdom Plantae
Elimination Tool:

36 / 100

Category: Biology Ch 7 Class 12

Microtubule subunits (for spindle fibers) are synthesized in _______ phase.

UHS 2019
Biology
Cell Cycle
Elimination Tool:

37 / 100

Category: Biology Ch 8 Class 12

To check the homozygosity or heterozygosity of apparently dominant trait, we do the test cross by crossing it with:

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

38 / 100

Category: Biology Ch 5 Class 12

Human embryo remains enclosed in:

PMC Practice 1
Biology
Growth and Development
Elimination Tool:

39 / 100

Category: Biology Ch 8 Class 12

Phenotype for both TT and Tt is tall, so the allele T is known as:

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

40 / 100

Category: Biology Ch 4 Class 11

60S and 40S subunit combine to form ______ particle

41 / 100

Category: Biology Ch 14 Class 11

Choose the correct pathway for the flow of blood:

NUMS 2020
Biology
Transport
Elimination Tool:

42 / 100

Category: Biology Ch 7 Class 12

Synaptonemal complex helps in:

NUMS 2014
Biology
Cell Cycle
Elimination Tool:

Bac

43 / 100

Category: Biology Ch 3 Class 12

The spinal nerves are functionally:

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

44 / 100

Category: Biology Ch 8 Class 12

When phenotype of a heterozygote is in between the phenotypes of both the homozygous parents, it is called:

NUMS 2016
Biology
Variation and Genetics
Elimination Tool:

45 / 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:

46 / 100

Category: Biology Ch 3 Class 11

Which of the following statements about enzymes is false?

PMC Sample 1
Biology
Enzymes
Elimination Tool:

47 / 100

Category: Biology Ch 5 Class 11

Amoeba belongs to which kingdom:

48 / 100

Category: Biology Ch 10 Class 11

Sea horse is included in:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

49 / 100

Category: Biology

Which bond is present between the nucleotides of DNA:

NUMS Mock 4
Biology
Chromosomes and DNA

50 / 100

Category: Biology Ch 10 Class 12

Natural selection can amplify or diminish variations that are

51 / 100

Category: Biology Ch 2 Class 12

Pectoral fins are enlarged in:

NUMS 2015
Biology
Support and Movement
Elimination Tool:

52 / 100

Category: Biology Ch 12 Class 11

When the liver fat content of our body increases, the condition leads to:

NUMS 2014
Biology
Nutrition
Elimination Tool:

53 / 100

Category: Biology Ch 3 Class 12

In an experiment, the production of hormone secretin was blocked. As a result, levels of all of the following enzymes were affected EXCEPT:

NTS 2014
Biology
Coordination and Control
Elimination Tool:

54 / 100

Category: Biology Ch 9 Class 11

What is the strengthening material of the prokaryotic cell wall?

PMC Practice 7
Biology
Kingdom Plantae
Elimination Tool:

55 / 100

Category: Biology Ch 2 Class 11

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

NTS 2012
Biology
Biological Molecules
Elimination Tool:

56 / 100

Category: Biology Ch 10 Class 11

The adaptive feature(s) which help(s) the fish to live in water include(s):

NTS 2014
Biology
Kingdom Animalia
Elimination Tool:

57 / 100

Category: Biology Ch 4 Class 12

Luteinizing hormone, which is produced by the pituitary gland, promotes ovulation and stimulate the ovaries to produce:

NUMS 2019 Cancelled
Biology
Reproduction
Elimination Tool:

58 / 100

Category: Biology Ch 13 Class 11

The respiratory pigment, which has much higher affinity to combine with oxygen is:

NUMS 2016
Biology
Gaseous Exchange
Elimination Tool:

59 / 100

Category: Biology Ch 5 Class 11

Genetically modified plants contain:

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

60 / 100

Category: Biology Ch 11 Class 11

In the Calvin cycle, the reducing power from NADPH is used during:

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

61 / 100

Category: Biology Ch 2 Class 11

Cell wall is made up of:

NUMS 2016
Biology
Biological Molecules
Elimination Tool:

62 / 100

Category: Biology Ch 9 Class 12

The cells are held together by a Ca-pectate layer are called as:

NUMS 2016
Biology
Biotechnology
Elimination Tool:

63 / 100

Category: Biology Ch 6 Class 11

Bacterial pilli help in:

NTS 2011
Biology
Kingdom Prokaryote
Elimination Tool:

64 / 100

Category: Biology

The rate of photosynthesis and respiration may equal one another at what time?

NUMS Mock 4
Biology
Bioenergetics

65 / 100

Category: Biology Ch 4 Class 12

Treponema pallidum causes:

NUMS 2016
Biology
Reproduction
Elimination Tool:

66 / 100

Category: Biology

Q.2 The set of all genes in any population is termed as?

67 / 100

Category: Biology

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

NUMS Mock 2
Biology
Gaseous Exchange

68 / 100

Category: Biology Ch 10 Class 11

Which one of following is a true fish?

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

69 / 100

Category: Biology

Consider the following statements regarding blood pressure:

1. It is the pressure exerted by the blood on the walls of any vessel.

2. It decreases in the arteries as the distance from the heart increases.

3. It is lower in the capillaries than in the arteries.

4. It is usually lower in women than in men.

Choose the correct statements.

NUMS Mock 3
Biology
Transport

70 / 100

Category: Biology Ch 8 Class 12

What is the risk of color blind baby boy in a family when mother is color blind but father is normal?

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

71 / 100

Category: Biology

Q.50 The cluster of pouches opened from alveolar ducts is known as

72 / 100

Category: Biology

Q.46 Which part of the brain connects the cerebrum with the spinal cord?

73 / 100

Category: Biology Ch 13 Class 11

Guard cells function as:

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Elimination Tool:

74 / 100

Category: Biology Ch 5 Class 11

First step of viral replication is:

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

75 / 100

Category: Biology Ch 6 Class 11

The cell membrane of a bacterial cell often invaginates to produce membranous structures referred to as:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

76 / 100

Category: Biology Ch 8 Class 12

J. Seiler in 1914 discovered which type of sex determination in moths?

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

77 / 100

Category: Biology Ch 2 Class 12

Bones of the skull are joined by:

NTS 2011
Biology
Support and Movement
Elimination Tool:

78 / 100

Category: Biology Ch 13 Class 11

Hemoglobin can absorb maximum oxygen at sea level, which is _____ ml/100 ml of blood.

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Elimination Tool:

79 / 100

Category: Biology

Which of the following is not a vestigial organ of man?

NUMS Mock 1
Biology
Evolution

80 / 100

Category: Biology Ch 11 Class 12

Disease in living organisms caused by parasites is called

81 / 100

Category: Biology

Q.17 Final acceptor of electrons in respiratory chain is?

82 / 100

Category: Biology

Q.29 Diaphragm is a sheet of:

83 / 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:

84 / 100

Category: Biology Ch 12 Class 12

In polluted lake which organisms dominate the community

85 / 100

Category: Biology Ch 4 Class 11

During digesting the phagocytosed food particles vesicles formed from fusion of phagocytic vacuole with the enzymes secreted by Golgi apparantus are called

86 / 100

Category: Biology

The hormone which controls the uptake of Sodium ions in kidney and its maintenance in blood plasma is:

NUMS Mock 2
Biology
Coordination and Control

87 / 100

Category: Biology Ch 4 Class 12

Development of an egg into zygote without fertilization is called

88 / 100

Category: Biology Ch 7 Class 12

Gametes in animals are produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

89 / 100

Category: Biology Ch 10 Class 11

Of the following which one is non-cellular in most cases in animals?

90 / 100

Category: Biology Ch 7 Class 11

Cyanobacteria resemble photosynthetic eukaryotes because they have:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

91 / 100

Category: Biology Ch 5 Class 11

Eukaryotic, multicellular, and consumers belong to ______ kingdom.

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

92 / 100

Category: Biology Ch 10 Class 12

The organs which are similar in function but differ in structure are called:

PMC 2020
Biology
Evolution
Elimination Tool:

93 / 100

Category: Biology Ch 10 Class 11

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

94 / 100

Category: Biology Ch 7 Class 11

Who first separated bacteria from other protists as a group?

95 / 100

Category: Biology Ch 10 Class 12

The actual remains or traces of organisms that lived in ancident geological times

96 / 100

Category: Biology Ch 8 Class 12

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

PMC 2020
Biology
Variation and Genetics
Elimination Tool:

97 / 100

Category: Biology Ch 5 Class 12

Germ cells give rise to:

NTS 2012
Biology
Growth and Development
Elimination Tool:

98 / 100

Category: Biology Ch 2 Class 12

Select a sessile zooflagellate:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

99 / 100

Category: Biology Ch 3 Class 11

When inhibitor binds to enzyme other than active site and alters its structure, then it is called:

NUMS 2020
Biology
Enzymes
Elimination Tool:

100 / 100

Category: Biology Ch 6 Class 11

Who coined the term Animalcules for microorganisms like Bacteria and protozoa?

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3 responses to “Biology Practice Test 4”

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  2. Anonymous

    Hi

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