NMDCAT BIOLOGY FLP-23 (SMART INSTITUTE)
NMDCAT Biology Quiz FLP-23
Welcome to the NMDCAT Biology Quiz FLP-23, designed to test your knowledge in biology for aspiring medical students. This comprehensive quiz covers a variety of topics, ensuring a well-rounded assessment of your understanding.
Prepare yourself for questions that include:
- Cell Biology
- Genetics
- Microbiology
- Physiology
- Botany
- Evolution
1-Where the heterozygote is indistinguishable from one of the homozygotes the allele involved is said to be?
Recessive
Dominant
Both a and b
None of these
2-Bond specificity of an enzyme is also known as
Relative specificity
Size specificity
Group specificity
None of these
3-What type of molecule is chlorophyll
Inorganic
Cationic
Anionic
Organic
4-Which of the following bacteria are thick rigid and spiral
Coccus
Vibrio
Spirillum
Bacillus
5-What percentage of protein is found in the cell membrane
20-40
40-50
60-80
90
6-Of the following which one is not included in protostomes
Arthropods
Hemichordates
Annelids
Molluscs
7-An increase in plant girth due to activity of
Cork cambium
Vascular cambium
Pith
Both a and b
8-The glycerols are considered backbone of
DNA
ATP
RNA
Triglycerides
9-The attraction between water molecules is termed as
Cohesion
Tension
Adhesion
Imbibition
10-Which two reactions occur during photophosphorylation
ATP is hydrolysed and NADP is reduced
ATP is hydrolysed and NADPH is oxidised
ATP is synthesised and NADP is reduced
ATP is synthesized and NADPH is oxidized
11-A reflex action involving two or more interactions between sensory and motor neuron is called
Monosynaptic reflex
Polysynaptic reflex
Hemisynaptic reflex
None of these
12-The substrate concentration that produces exactly half of the maximum reaction rate can be described by
Michaelis equation
Menten equation
Bernouli equation
Michael-menten equation
13-The image represent by compound microscope is
Real
Virtual
Real inverted
Virtual inverted
14-The arrangement of cocci is basically due to their
Shapes
Planes of division
Binary tission
Chain formation
15-How can hepatitis be controlled
Adopting hygienic measures
Routine vaccinations
Screening of organ donors
All of these
16-If we consider Hardy-Weinberg law, then folllowing is incorrect in its sense?
Mutations cause changes in genetic frequency
Migration changes allele frequency
There should not be selection
Non-random mating will reduce chances of evoltuion
17-Which one of the following statements about enzymes is not true?
They are sensitive to heat
They consist of proteins or without a non-protein part
They change the rate of catalyzed reaction
They are non-specific in their action
18-The function of tropomysin is to prevent actin and myosin from ..... When the muscle is at rest.
Interacting
Separation
Both a and b
None of these
19-Change in frequency of alleles at a locus that occurs by chance is
Mutation
Selection
Non-random mating
Genetic drift
20-The number of autosomes in human sperm is
11
22
44
45
21-The outer portion of spinal cord is composed of
White matter
Gray matter
Cell bodies
Non-myelinated nerve fibres
22-Binomial nomenclature was introduced by
Aristotle
Linnaeus
Mendel
Darwin
23-Pre-Chordate is another name used for
Echinoderms
Vertebrates
Chordata
Hemichordates
24-All DNA virus replicate in the nucleus
Yes all
No
Yes but some some exceptions
They replicate in cytoplasm
25-All of the following are true platyhelminthes except
Flatworms
Triploblastic
Bilateral symmetry
Coelomate
26-The bacteriophage is shaped as
Rod
Spherical
Tadpole
Helical
27-Compared to gram negative bacteria, how many more membrane-bound organelles do gram positive bacteria contain
0
1
2
3
28-Which type of bonds exists between an enzyme and its prosthetic group?
Ionic
Covalent
Hydrogen
Metallic
29-End of menstrual cycle in old age is called
Andropause
Gametopause
Menopause
All of these
30-In the human body, the group formed by neurons enclosed in the membrane at certain body parts is called
Benign
Malign
Ganglion
Neuroglial
31-Gut in pseudocoelomates is made from which of the following?
Ectoderm
Endoderm
Mesoderm
All of these
32-What is produced in the muscle cells during extreme physical activity
Acetyl coA
Alcohol
Lactic acid
All of these
33-The offspring of mating between two pure stains are called
Hybrid
The P generation
Mutants
The F2 generation
34-Which of these lobes contains Broca's area, which is associated with speech ability
Frontal
Parietal
Temporal
Occipital
35-Apomixis is a form of which of following
Parthenocarpy
Parthenogenesis
Vernalization
All of these
36-The furan ring is important structural component of biological molecules. How many carbon atoms are required to form ribofuranose?
3
5
6
2
37-The person suffreing from chronic bronchitis at the age
20
30
35
45
38-The bronchi divide into the lungs and make the tubes that are termed as
Bronchi
Bronchioles
Pharynx duct
Alveloar duct
39-An enzyme is said to be denatured in the presence of
No cofactor
Low temperature
Extremely high temperature
None of these
40-If enzyme concentration is low than substrate pH and temperature values are equal to requirement then which of the following will increase rate of reaction
Increase in concentration of substrate
Increase in pH
Increase in temperature
Increase in concentration of enzyme
41-All of the following are trace elements except
Iron
Chromium
Nickle
Sulphur is minor element
42-Which of the following statements are true about the capsomeres
It is an individual unit of the capsid
It is a viral protein for replication
It is a unit of nucleic acid in viruses
All of above
43-Mild wheezing, fever, chills and shortness of breath : all are symptoms of
Emphysema
Asthma
Pneumonia
Bronchitis
44-Where does the detoxification of harmful drugs occur
RER
SER
Golgi
Both a and b
45-At joints, the exoskeleton are
Thick, soft and flexible
Thin, soft and flexible
Thin, hard and immovable
Thick, hard and flexible
46-In terrestrial conditions, the type of fertilization more common is
Internal
External
Self
All
47-Which of the following is the best description of a bacteriophage
Fungus
Prokaryote
Living organisms
Obligate intracellular parasite
48-Which of the following glands contribute to the production of semen
Seminal vesicles
Bulbourethral gland
Prostate gland
All of these
49-Which brain part is responsible for the formation of long term memory
Medulla
Thalamus
Hippocampus
Corpus callosum
50-Where in a leaf mesophyll cell would you find DNA molecules
Nucleus only
Nucleus & mitochondria only
Nucleus, mitochondria & chloroplast only
Nucleus, mitochondria, chloroplasts and plastids only
51-Net yield of H2O in photosynthesis is
1
6
3
0
52-Pidgeon, platypus and panda are all representatives of which of the following
Homeothermic
Hyperthermic
Poikilothermic
None of these
53-Which of the following is an incorrect difference between a shark and a whale
A shark heart has only one chamber whereas a whale's heart has two chambers
Shark gills are not covered by operculum whereas those in a whale are
Sharks do not possess a swim bladder whereas whales do
Sharks have placoid scales on their skin whereas whales don't
54-Example of a homologous organ is represented best by which of the following
Wing of an insect, wing of a bird
Leg of a dog, leg of a spider
The arm of a human, wing of a bird
All of these
55-A key property of a living being is that it contains ...... For making its protein
Amino acids
Mitochondria
MRNA
Ribosomes
56-In a certain flower, a blue petal phenotype is dominant to a white petal phenotype. If you cross a heterozygous flower with a homozygous recessive flower, what is the probability of inheritance for the white petal phenotype
25 %
50 %
75 %
1
57-What type of viruses contain the enzyme lysozyme to aid in their infection
Bacteriophage
Animal virus
Plant virus
Fungal virus
58-What would you predict would happen to pancreatic enzymes if they were introduced to the stomach?
Their function would decrease due to increase pH
Their function would decrease due to decreased pH
Their function would increase due to decreased proton concentration
Their funtion would increase to due to decrease pH
59-What is not true about enzyme
The Keq of a reaction remains unchanged in the presence of an enzyme
Enzymes speed up the rate of reaction in DNA synthesis
Harsh, acidic conditions can completely denatured an enzyme
An enzyme is completely converted to product during metabolism
60-A chloroplast has 3 main components. They are the envelope, stroma and?
Thylakoid
F1 particles
Granum
Centrosomes
61-The smallest bacterium is
Mycoplasma
Lactobacillus
Pseudomunas
Escherchia coli
62-Which of the following statement about neuron is incorrect
They not only conduct impulses but also generate them
They are not the only cellular component of nervous system
They may show limited regenerative capabilities
Like all the living cell, when they mature and divide to form similar cells
63-What happens in a contracted muscle fibre
A band vanishes
M line vanishes
H zone elongates
I band is steady
64-Which of the following terms is best defined as a nature, motile and haploid sperm cell produced during spermatogenesis
Spermatid
Spermatogonium
Secondary spermatocyte
Spermatozoa
65-The process that does not occur during expiration is
Intercostal muscles are relaxed
Ribs are relaxed
Muscle of diaphragm are relaxed
Lungs are relaxed
66-Visible light used in photosynthesis range from nm
300-700
350-750
380-750
390-790
67-The property of water due to which it works as a temperature stabilizer and hence protect living organisms from sudden thermal changes is
Dipole nature
High specific heat of vaporization
Hogh specific heat capacity
Its liquid state
68-Carbonic anhydrase is found in
RBC
PARABRONCHI
PLEURA
NONE
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