aKidsZone
Home
MCQs
NEET Test Series-2021 to 2022 — Quiz
NEET Biology MCQS Mock Test Paper 43
50 questions · Test your knowledge
Home
/
MCQs
/
NEET Biology MCQS Mock Test Paper 43
1
Ischemia is
A
 restriction of blood supply to tissues
B
Overflow of blood to tissues
C
 Inadequate deoxygenated blood carrying veins
D
the medical term for shortness of breath
2
This is the role of the coronary artery
A
to carry blood away from the heart muscles
B
to supply blood to heart muscles
C
 to supply blood to all parts of the body
D
none of these
3
One of the ways scientists suggest to find a treatment for muscular dystrophy is
A
replacing muscles
B
create customized diets for them to be healthier and stronger
C
 attempt to correct defective genes so it creates the right proteins
D
none of these
4
Define muscular dystrophy
A
Diseases which destruct the muscles of the body
B
diseases which cause the muscles to get disproportionate
C
born with too many or too little muscles
D
diseases which do not allow muscles to grow
5
Muscular dystrophy can affect
A
Only humans
B
Only animals
C
Both animals and humans
D
Only plants
6
Another way that scientists propose as a treatment to cure muscular dystrophy is
A
 Removal of defective genes
B
Replacing defective genes after removing with parents genes again
C
Discovering chemicals which can substitute the missing chemical
D
 none of these
7
________ is not a form of muscular dystrophy
A
 Lunar dystrophy
B
Myotonic dystrophy
C
Duchenne muscular dystrophy
D
 Facioscapulohumeral dystrophy
8
The protein whose production gets affected in Duchenne muscular dystrophy is
A
Actin
B
Myotropin
C
Dystrophin
D
Leucovorin
9
The gene responsible for causing Duchenne muscular dystrophy is found on
A
Y chromosome
B
 X chromosome
C
 Autosomal chromosome number 5
D
Autosomal chromosome number 8
10
 The enzyme, whose blood levels is increased in patients with Duchenne muscular dystrophy is
A
Carbonic anhydrase
B
Dystrophin kinase
C
 Adenosine triphosphate
D
Creatinine phosphokinase
11
Duchenne muscular dystrophy can be cured with
A
Allopurinol
B
Creatinine phosphokinase inhibitors
C
Corticosteroids
D
None of these
12
The involvement of this muscle affects the breathing in Duchenne muscular dystrophy
A
Triceps
B
Biceps
C
Diaphragm
D
Quadriceps
13
Which of this bacteria is resistant to penicillin as it lacks a cell wall?
A
 Spirochetes
B
Cyanobacteria
C
Mycoplasmas
D
Bdellovibrios
14
 What is a cluster of polar flagella called?
A
Petritrichous
B
Monotrichous
C
Amphitrichous
D
Lophotrichous
15
 Which of these is a cocci occurring in single or pairs?
A
Diplococci
B
Streptococci
C
Tetracocci
D
None of the above
16
Flagella in bacteria enable them to
A
reproduce
B
locomote
C
Thrive in nutrient agar
D
Thrive in nutrient agar
17
This about cell wall of gram-positive bacteria is true
A
 cell wall comprises of many layers
B
 the cell wall is thicker than the associated gram-negative bacteria
C
Cell wall comprises of teichoic acids
D
All of the above
18
What is Chemotaxis?
A
 Swimming towards a bacteria
B
 Swimming away of a bacteria
C
 In the presence of a chemical compound, swimming towards or away of a bacteria
D
None of these
19
Which of these is exposed on the outer surface of a gram-negative bacterium?
A
 Braun lipoprotein
B
O-antigen of lipopolysaccharide (LPS)
C
Polysaccharide portion of lipoteichoic acid (LTA)
D
Electron transport system components
20
The covalent bond which links the cell walls of gram-positive bacteria containing two modified sugars – N – acetylmuramic acid (NAM) and N-acetyl glucosamine (NAG) is
A
glycosidic bond
B
1,4-glycosidic bond
C
1,6-glycosidic bond
D
glycosidic bond
21
Which one of these has a Chinese letter arrangement?
A
Clostridium tetani
B
Mycobacterium tuberculosis
C
Bacillus anthracis
D
Corynebacterium diphtheriae
22
This is analogous to mesosomes of bacteria
A
Golgi apparatus of eukaryotes
B
Lysosomes of eukaryotes
C
Mitochondria of eukaryotes
D
None of the above
23
Which of these is the fibre obtained from the coconut’s husk
A
 Perlite
B
Vermiculture
C
Coir
D
Rockwool
24
The form of hydroponics that does not require a growing medium at all is
A
Aquaculture
B
Static solution culture
C
Medium culture
D
Aeroponics
25
Plants with larger roots can be cultivated with which of the following types of hydroponics
A
 Ebb and flow system
B
Drip system
C
 Nutrient Film technique
D
 None of these
26
 Hydroponics is a method of cultivation of plants without the use of
A
 water
B
 air
C
soil
D
sunlight
27
Which of the following is not true about hydroponics?
A
Requires high investment
B
Technical knowledge required
C
Can be misused to cultivate banned crops
D
 Plants through hydroponics cannot be cultivated everywhere
28
 Salts and water in hydroponic plants are absorbed by
A
Leaves
B
 Stem
C
Roots
D
Outer Layer of plants
29
The scientist who used nutrient culture solution in hydroponic cultures was
A
Knop
B
 Sachs
C
 Wallace
D
 Webster
30
Deficiency of mineral nutrition does not cause which of these
A
Chlorosis
B
Etiolation
C
Necrosis
D
Shortening internode
31
Roots of a plant in hydroponics are submerged in a solution of dissolved _________
A
fertilizers
B
oxygen
C
mineral salts
D
chemicals
32
Which of these plants may not be suitable for cultivation through hydroponics
A
Tomatoes
B
Carrot
C
Cucumber
D
Strawberries
33
 Indole-3-acetic acid is the most common naturally occurring plant hormone of _______ class
A
Gibberellin
B
Auxin
C
Ethylene
D
Cytokinin
34
This hormone is not a growth inhibitor
A
Dormin
B
 Abscisic acid
C
 Ethylene
D
 IAA
35
_______ is a gaseous plant hormone
A
 IBA
B
Ethylene
C
 Abscisic acid
D
NAA
36
A widely used rooting hormone is
A
2,4, -D
B
NAA
C
2,4,5 – T
D
Cytokinin
37
The leaf defoliator utilized in the Vietnam war by the USA known as “Agent Orange†was
A
2,4, -D and 2,4,5 – T
B
Ethylene
C
2,4, -D and NAA
D
 2,4,5 – T, ethylene and NAA
38
Transport of auxin is
A
non-polar
B
symplast
C
apoplast
D
polar
39
Formation of the nodule is induced by
A
IAA
B
NAA
C
IBA
D
Both (a) and (c)
40
This is the precursor of Indole-3-acetic acid
A
Methionine
B
Tryptophan
C
Glycine
D
 Isopentynyl pyrophosphate
41
 This bioassay is used to detect the presence of auxin
A
 Only tobacco pith culture
B
Tobacco pith culture and Avena curvature test
C
Tobacco pith culture and Split pea stem curvature test
D
Split pea stem curvature test and Avena curvature test
42
 Which of these is not a function of auxin?
A
 inducing callus formation
B
inducing dormancy
C
enhancing cell division
D
maintaining apical dominance
43
 One of this trait is not seen in a person with Down syndrome
A
 High muscle tone
B
Small stature
C
Upward slant eye
D
Short neck
44
The number of chromosomes a child with Down syndrome has is
A
 45
B
46
C
47
D
48
45
 Down syndrome is caused due to
A
 bacterial infection
B
a chromosomal abnormality
C
 Viral infection
D
lack of oxygen supply to the brain during birth
46
Which of these traits is not linked with Down syndrome?
A
 Oily skin
B
Hypotonicity
C
Simian Crease
D
Brachycephaly
47
This assessment finding would enable a nurse to suspect the presence of Down syndrome in a newborn
A
Single palmar crease and hypotonia
B
Short palpebral tissues and flat maxillary area
C
 Prominent scalp veins and a high-pitched cry
D
Persistent postnatal growth lag and Microcephaly
48
Down syndrome is
A
 Sex-linked
B
 Chromosomal
C
dominant
D
 recessive
49
A disease which may result from Down syndrome
A
Cancer
B
 Cellulitis
C
Celiac disease
D
None of these
50
Generally, a person with Down syndrome has an IQ of
A
20-30
B
 40-50
C
 60-70
D
None of the above
Submit Quiz
Back to All Quizzes