MDCAT Practice Tests
Biology Practice Test 5
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Category: Biology Ch 6 Class 12
Who discovered DNA?
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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 JSMUBiologyEnzymesElimination Tool:
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Category: Biology Ch 2 Class 12
Pivot joint exists between
NUMS 2014BiologySupport and MovementElimination Tool:
4 / 100
Category: Biology Ch 7 Class 11
Which of the following statements is correct?
NUMS 2017BiologyKingdom ProtistaElimination Tool:
5 / 100
Category: Biology Ch 5 Class 11
Other name for Kingdom monera is:
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Category: Biology
Q.50 Which of the following hormones is essential for the production of sperms?
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An example of competitive inhibition of an enzyme is the inhibition of;
UHS 2019BiologyEnzymesElimination Tool:
8 / 100
HIV is also known as:
NUMS 2014BiologyBio-diversity | Variety of LifeElimination Tool:
9 / 100
Category: Biology Ch 1 Class 12
Which of the following fishes excrete large volume of diluted urine?
10 / 100
Which of the following marine fishes are considered direct descendents of fresh water ancestors?
11 / 100
Which of these in an aqueous solution of equal concentration has the lowest pH?
NUMS Mock 4ChemistryCarboxylic Acids and its Derivatives
12 / 100
Category: Biology Ch 4 Class 11
Magnifying power of electron microscope as compared to eye is
13 / 100
Category: Biology Ch 4 Class 12
What is the commercial method of producing millions of seedlings in limited time?
NUMS 2016BiologyReproductionElimination Tool:
14 / 100
Category: Biology Ch 10 Class 12
Genetic equilibrium is a:
NTS 2019BiologyEvolutionElimination Tool:
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The total aggregate of genes in a population at any one time is called population’s
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The only possible treatment in end stage renal failure is:
NUMS Mock 3Biology
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Spherical or tubular membranes which separate the material present in endoplasmic reticulum from that of cytoplasmic material are called
18 / 100
Category: Biology Ch 7 Class 12
Synthesis of microtubules increases in:
UHS 2018BiologyCell CycleElimination Tool:
19 / 100
Terrestrial animals like kangaroo rat survive even without drinking water since
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Category: Biology Ch 9 Class 12
It is a method for rapid production of a very large number of copies of a particular fragment of DNA:
PMC 2020BiologyBiotechnologyElimination Tool:
21 / 100
Treponema pallidum causes:
22 / 100
Category: Biology Ch 2 Class 11
% of water in brain cells is
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When the temperature of the surrounding environment rises, body responds by:
PMC 2020BiologyHomeostasisElimination Tool:
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Q.55 Immunogen is a foreign substance and stimulates the formation of:
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Q.38 The cell organelles involved, in some cases, with extra-cellular digestion
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The total of all the alleles in a population is called a:
NUMS 2014BiologyChromosomes and DNAElimination Tool:
27 / 100
Category: Biology Ch 12 Class 12
Which statement about profundal zone is correct?
28 / 100
Category: Biology Ch 12 Class 11
All of the insectivorous plants are true
29 / 100
Category: Biology Ch 13 Class 11
Number of spiracles present in the thorax of cockroach is
30 / 100
Category: Biology Ch 10 Class 11
Aschelminthes is also known as
31 / 100
In an annelids, the contraction of circular muscle results in:
32 / 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 2016BiologyVariation and GeneticsElimination Tool:
33 / 100
Fundography is relevant to:
NUMS 2016BiologyNutritionElimination Tool:
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Which of the following animal has a hydrostatic skeleton:
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During the formation of an ovum nondisjunction of the sex chromosomes occurred the ovum was then fertilized by a normal Y-bearing sperm cell which one of the following shows the sex chromosome complement of the resulting zygote?
NTS 2015 DUHS and JSMUBiologyCell CycleElimination Tool:
36 / 100
Numerous opportunistic diseases might attack a person suffering from which of the following diseases?
NUMS 2020BiologyBio-diversity | Variety of LifeElimination Tool:
37 / 100
Q.30 Arterial blood contains ___________of CO2/100 ml of blood:
38 / 100
Pseudocoelom is actually derived from:
NUMS 2016BiologyKingdom AnimaliaElimination Tool:
39 / 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 7BiologyKingdom PlantaeElimination Tool:
40 / 100
Unpaired facial bones are:
NUMS Mock 3BiologySupport and Movement
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Carbon atom is
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_____ is activated to ______ by enterokinase / enteropeptidase enzyme secreted the lining of duodenum:
NUMS 2019 CancelledBiologyNutritionElimination Tool:
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Adaptations that an organism acquires by its own actions are
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Q.48 Octopus belongs to phylum mollusca because:
45 / 100
Category: Biology Ch 6 Class 11
Cell wall is only absent in the following group of bacteria;
PMC Practice 6BiologyKingdom ProkaryoteElimination Tool:
46 / 100
A sponge of Antarctica which is more than a meter tall is known as?
PMC Sample 3BiologyKingdom PlantaeElimination Tool:
47 / 100
Category: Biology Ch 13 Class 12
Greenhouse gases are those that:
NUMS 2015BiologyMan and His EnvironmentElimination Tool:
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The best function of coelom is described as ____.
NUMS Mock 1BiologyKingdom Animalia
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Q.14 A man is suffering from fever. What will be the effect on his enzyme activity of the body?
50 / 100
Antibodies are
NUMS 2019 CancelledBiologyBiological MoleculesElimination Tool:
51 / 100
Nitrogen-fixing bacteria in root nodules fix nitrogen in soil air into:
NUMS Mock 1BiologyNutrition
52 / 100
A disease caused by gradual breakdown of the thin walls of alveoli is;
UHS 2019BiologyGaseous ExchangeElimination Tool:
53 / 100
Solanum tuberosum is a scientific name of:
54 / 100
Category: Biology Ch 5 Class 12
Cytoplasmic localization is a consequence of:
NTS 2011BiologyGrowth and DevelopmentElimination Tool:
55 / 100
Most enzymes have an optimum temperature of around:
PMC 2020BiologyEnzymesElimination Tool:
56 / 100
Category: Biology Ch 14 Class 11
Semilunar valves are not present:
NUMS 2015BiologyTransportElimination Tool:
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The DNA that has been altered and which now contains length of nucleotides from two different organisms is called a:
59 / 100
Some transgenic bacteria produce a dipeptide sweetener called
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Which of the following diseases CANNOT be cured by gene therapy?
NUMS 2019 ReconductBiologyBiotechnologyElimination Tool:
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The system responsible for fighting the pathogens is:
NUMS Mock 4BiologyTransport
62 / 100
Category: Biology Ch 8 Class 11
Unicellular fungi which is non-hyphal is
63 / 100
Category: Biology Ch 11 Class 11
Light reaction takes place on/in
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During DNA replication ______ attaches the fragment to the lagging strand.
NUMS 2019 ReconductBiologyChromosomes and DNAElimination Tool:
65 / 100
Q.21 All of the following are true for platyhelminthes except:
66 / 100
How many ml of blood is pumped by each contraction of the heart?
NUMS Mock 1BiologyTransport
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The mammals termed as the connecting link between reptilians and mammals are:
NUMS 2014BiologyKingdom AnimaliaElimination Tool:
68 / 100
Q.27 During which of the following levels of biological organization can natural selection occur?
69 / 100
In genetics, the term locus refers to the ______ of the gene on the chromosome.
NUMS Mock 4BiologyChromosomes and DNA
70 / 100
Category: Biology Ch 1 Class 11
In animals coordination is achieved by means of
71 / 100
Bacteriophages, or phages are also known as:
PMC Sample 2BiologyBio-diversity | Variety of LifeElimination Tool:
72 / 100
Which statement is incorrect?
73 / 100
The cells which play a very important role in developing immunity are:
74 / 100
Pick the mismatched pair for birds:
NUMS 2015BiologySupport and MovementElimination Tool:
75 / 100
Some bacteria ranging occasionally a size of 500 ?m in length are
76 / 100
The structural and functional unit of the lungs is:
PMC Practice 2BiologyGaseous ExchangeElimination Tool:
77 / 100
An activated enzyme consisting of polypeptide chain and a cofactor is called:
78 / 100
In plants which of the following is a waste product produced both during photosynthesis and respiration
79 / 100
Ileum is about ______ long:
NTS 2010BiologyNutritionElimination Tool:
80 / 100
NAD is an example of:
PMC 2020BiologyBiological MoleculesElimination Tool:
81 / 100
As an essential element in living organisms, _______ ion is playing an important role in insulin secretion, the release of neurotransmitters, muscle contraction, and heartbeat regulation.
NUMS Mock 2BiologyCoordination and Control
82 / 100
When were bacteriophages discovered by Twort?
PMC Practice 5BiologyKingdom ProkaryoteElimination Tool:
83 / 100
Carbon dioxide fixation can be enhanced by enhancing the efficiency of:
NUMS Mock 3BiologyBioenergetics
84 / 100
Which of the following substance is most favorable to form structural component of biological membranes?
85 / 100
In most triploblasts after embryonic development the three layers are represented as
86 / 100
The following observations refer to evolution:
I. Inherited variations which are ‘favoured’ in particular environments are passed on.
II. There is a struggle for existence.
III. In time, ‘favoured’ inherited variations may accumulate causing gradual changes in the organism.
IV. Although populations tend to overproduce, they remain more or less constant in numbers from generation to generation.
In what sequence should the statements be placed to support Darwin’s theory of evolution?
NTS 2014BiologyEvolutionElimination Tool:
87 / 100
Which of the following component is found in the cell wall of fungi?
UHS 2012BiologyKingdom FungiElimination Tool:
88 / 100
Cell wall is made up of:
NUMS 2016BiologyBiological MoleculesElimination Tool:
89 / 100
In sexual reproduction, plants have diplohaplontic life cycle with alternating
90 / 100
Read the passage below to answer the question:
Hemophilia is a disorder in which blood fails to clot. Saad, a male hemophiliac, marries Sara, a normal woman and together they have four children, two boys (Ahmed and Ali) and two girls (Alia and Ayesha). None of the children display the symptoms of Hemophilia. Ahmed, Ali, Ayesha, and Ali all marry normal individuals and have children. None of Ahmeds or Ali’s children, male or female, display symptoms of hemophilia, but the sons of Alia and Ayesha display symptoms of hemophilia while the daughters of Alia and Ayesha do not.
Which of the following individuals are heterozygous for hemophilia:
NTS 2010BiologyVariation and GeneticsElimination Tool:
91 / 100
The irritant substances of smoke cause smoker’s cough which weakened and bursts:
NUMS 2019 ReconductBiologyGaseous ExchangeElimination Tool:
92 / 100
Smooth endoplasmic reticulum is responsible for the metabolism of:
UHS 2019BiologyCell CycleElimination Tool:
93 / 100
The respiratory pigment, which has much higher affinity to combine with oxygen is:
NUMS 2016BiologyGaseous ExchangeElimination Tool:
94 / 100
During anaphase, each chromosome has:
PMC 2021 TestedBiologyCell CycleElimination Tool:
95 / 100
Translocation of organic solutes in plants takes place through:
NUMS 2020BiologyNutritionElimination Tool:
96 / 100
Which one of the following types of cell are found in secondary xylem of angiosperms?
NTS 2015 DUHS and JSMUBiologyKingdom PlantaeElimination Tool:
97 / 100
Which of the following is NOT TRUE about Human Immunodeficiency virus (HIV)?
PMC 2020BiologyBio-diversity | Variety of LifeElimination Tool:
98 / 100
Regarding structure of the human heart, Chordae Tendinae are present in:
PMC 2020BiologyTransportElimination Tool:
99 / 100
Hydra reproduces asexually by:
NUMS 2014BiologyReproductionElimination Tool:
100 / 100
Q.49 Gastric secretion is stimulated by:
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Ali Durrani
