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NEET Biology MCQS Mock Test Paper 22
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1. The spicules of silica are found in
Grantia
Leucosolenia
Sycon
Hyalonema
2. This about sponges is true
large stomach
chitinous spicules
one mouth, many exits in the body
many mouth openings and one exit chitinous spicule
3. These sponges are found in rivers
Sycon
Spongilla
Cliona
Hyalonema
4. In sponges, this chamber is common to all the types of canal systems
radial chamber
incurrent canal
excurrent canal
paragastric cavity
5. Amphiblastula is the larva of _________
Planaria
Sycon
Leucosolenia
Hydra
6. The primitive multicellular entities, sponges have
Tissue grade of organization possessing organs and organ systems
Cellular grade of organizations with absence of organs and organ systems
Both of these
None of these
7. This is the excretory waste of Sycon
urea
uric acid
ammonia
none of these
8. In Sycon, the epithelial lining is made of
Choanocytes
Amoebocytes
Both (a) and (b)
Pinacocytes/flat cells
9. This best describes a polysome
active site for synthesis of lipids
active site for synthesis of proteins
active site for synthesis of DNA
all of these
10. In protein synthesis, translocation is initiated with the movement of
tRNA from P-site to the A-site
dipeptidyl tRNA from A-site to P-site
tRNA from A-site to P-site
tRNA from P-site to E-site
11. The process by which protein synthesis from genetic code occurs is best described by
transcription
translation
replication
reproduction
12. This is incorrect about the nature of genetic code. Codons are
universal
overlapping
commaless
triplet
13. This elongation factor is known as translocase
EFG
EF2
both (a) and (b)
EF-Tu and EF-Ts
14. This drug inhibits the initiation step of translation
ricin
tetracycline
streptomycin
cyclohexylamine
15. In translation, this is not an essential component
amino acid
ligase
mRNA
anticodon
16. This identifies a particular amino acid and its cognate tRNA molecule
topoisomerase
rRNA
Ribosome
tRNA synthetase
17. Protein synthesis corresponds to the process of
duplicating required DNA for synthesis of proteins
formation of amino acids from mRNA
formation of mRNA from DNA template
formation of amino acids from DNA template directly
18. This is considered to be the start codon
AGG
UAG
GUG
AUG
19. This can be used to demarcate a facultative parasite
can become a parasite but is actually a saprophyte
can become a saprophyte but is actually a parasite
only requires dead organic matter to sustain
requires a living host inevitably
20. Pick the incorrect statement about Fungi
Can be anaerobic
Can be photosynthetic
Can be multicellular
Can be saprophytic
21. The reason why there is a close association between fungi and algae in lichen is because the fungus
releases oxygen for algae
fixes atmospheric nitrogen for algae
provides food for algae
provides anchorage, protection and absorption for algae
22. Facultative saprophyte is
always a saprophyte
always a parasite
a parasite which may live as a saprophyte
may adapt a parasitic lifestyle
23. Lichens are a known combination of fungi and algae where the fungus is
a symbiotic relationship with algae
a parasitic relationship with algae
an epiphytic relationship with algae
a saprophytic relationship with algae
24. Fungi are ____________ when they feed on dead organic matter
Saprophytes
Parasites
Dimorphic
None of the above
25. Parasitic and saprobiotic mode of nutrition are found in
Fungi
Bacteria
Both (a) and (b)
Viruses
26. This one is saprophytic in nutrition
virus
cyanobacteria
fungi
all of these
27. When one organism obtains nutrition from the other, the mode of nutrition is
heterotrophic
symbiosis
autotrophic
none of these
28. This has a saprophytic mode of nutrition
Mushroom
Leech
lice
roundworm
29. Micro propagation involves
small explants used for vegetative multiplication of plants
microbes used for vegetative multiplication of plants
microspores used for vegetative multiplication of plants
megaspores and microspores used for non-vegetative multiplication of plants
30. Pick the incorrect statement – Agar is a gelling agent in plant tissue culture medium
it is not digested by the enzymes of plants
it is not used in micropropagation work
does not react with media constituents
remains stable at incubation temperature
31. Solidifying agent that is used in plant tissue culture is
Agar
EDTA
Cobaltous chloride
Nicotinic acid
32. Benefit of clonal propagation or micropropagation is
multiplication of sexually derived sterile hybrids
multiplication of disease free plants
rapid multiplication of superior clones
all of these
33. Protoplasts can be synthesized from suspension cultures, intact tissues or callus tissues by the enzymatic treatment with
proteolytic enzymes
both pectolytic and cellulolytic enzymes
pectolytic enzymes
cellulolytic enzymes
34. In artificial media, the growth of plant tissues is
gene expression
transgenesis
plant tissue culture
cell hybridization
35. An excised piece of stem tissue or leaf used in micropropagation is
scion
explant
medium
microshoot
36. Protoplasts are devoid of
cell wall
cell membrane
both cell membrane and cell wall
none of these
37. This plant propagation technique uses girdling
cuttings
grafting
both (a) and (b)
layering
38. ______ is used to develop virus free plants
cell suspension culture
protoplast culture
meristem culture
organ culture
39. Protein-energy malnutrition (PEM) corresponds to a state where the infant’s dietary intake is deficient in
Carbohydrates
overall calories
proteins
both (b) and (c)
40. The availability of proteins and energy and inadequate absorption in the body is known as
pepsin energy malnutrition
pepsin enzyme malnutrition
protein energy malnutrition
protein excess malnutrition
41. PEM is mostly seen and has the most destructing consequences in
adulthood and adolescence
adolescence and early childhood
infancy and early childhood
only infancy
42. Up to the age of six months, this is the ideal food for newborns and young infants
soy milk
rice cereal
breast milk
iron-fortified formula
43. Disorders related to nutritions is known as
balancing of nutrition
insolubility of nutrition
solubility of nutrition
malnutrition
44. Which of the following diseases is caused by protein-energy malnutrition?
angina
goiter
marasmus
tuberculosis
45. A newborn infant, as part of routine is immediately assessed with this procedure after delivery
infant functionality scale
Apgar scoring system
neonatal development scale
Dubowitz-Ballard scale
46. Phenylketonuria is a genetic disorder impairing the metabolism of
amino acid phenylalanine
Polyunsaturated fatty acids
proteins
none of these
47. This can be the first indication that PEM has led to the permanent damage to the brain
low birth weight
premature birth
a reduced circumference of the head
slowed reflexes during birth
48. The type of nutrition in which more nutrients are consumed than the required quantity for normal growth of the body
pepsin-enzyme malnutrition
mineral deficiency diseases
over intake of nutrients
protein energy malnutrition
49. In 1955, the person who invented the Polio vaccine was
Hiram Maxim
Theodore Roosevelt
Jonas Salk
Joseph Stalin
50. Pick the correct statement regarding vaccines of Polio
Salk is an inactivated polio vaccine
Sabin is live attenuated polio vaccine
Salk and Sabin are polio vaccines
All the above are correct
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