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MEDIUM
ENGLISH
Biology
Embryonic induction is caused by part developing from_____________?
A
Endoderm
Option A
B
Ectoderm
Option B
C
Mesoderm
Option C
D
Extraembryonic layers
Option D
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MEDIUM
ENGLISH
Biology
Sickle cell anemia is an example of_________________?
A
Chromosomal aberration
Option A
B
Insertion of gene
Option B
C
Deletion of gene
Option C
D
Point mutation
Option D
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MEDIUM
ENGLISH
Biology
The type of plastids which help in pollination is_________?
A
Chromoplasts
Option A
B
Leucoplasts
Option B
C
Chloroplasts
Option C
D
All of these
Option D
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MEDIUM
ENGLISH
Biology
Purines and pyrimidines are in equal ration in DNA. It was indicated by_______________?
A
F.Miescher
Option A
B
Chargaff
Option B
C
Watson & Crick
Option C
D
Harshay & Chase
Option D
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MEDIUM
ENGLISH
Biology
Chlorophyll is a/an _____ molecule?
A
Inorganic
Option A
B
Cationic
Option B
C
Anionic
Option C
D
Organic
Option D
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MEDIUM
ENGLISH
Biology
Ribonucleo-protein particles are the name of__________?
A
DNA
Option A
B
Nucleus
Option B
C
Eukaryotic ribosomes
Option C
D
RNA
Option D
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MEDIUM
ENGLISH
Biology
Lock and Key model was proposed by______________?
A
Emil Fischer
Option A
B
Koshland
Option B
C
Robin Williams
Option C
D
Rudolph Virchow
Option D
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MEDIUM
ENGLISH
Biology
Which step causes activation of catalytic site of an enzyme__________________?
A
Change in pH of the surroundings.
Option A
B
Formation of Enzyme Susstrate complex.
Option B
C
Change in the charge of the active site.
Option C
D
Change in temperature
Option D
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MEDIUM
ENGLISH
Biology
Amoeboid movements and movement of cyclosis is due to_________?
A
Microfilaments
Option A
B
Microtubules
Option B
C
Intermediate filaments
Option C
D
Cytoskeleton
Option D
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MEDIUM
ENGLISH
Biology
Enzymes __________________ the activation energy of a chemical reaction?
A
Increases
Option A
B
Decreases
Option B
C
Does not effect
Option C
D
Increases or decreases depending upon individual enzyme
Option D
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MEDIUM
ENGLISH
Biology
Which one forms the raw material for coenzymes_______________________?
A
Vitamins
Option A
B
Carbohydrates
Option B
C
Proteins
Option C
D
Metals
Option D
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MEDIUM
ENGLISH
Biology
Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by___________?
A
Ribosomes
Option A
B
Cytoplasm
Option B
C
Golgi apparatus
Option C
D
Endoplasmic reticulum
Option D
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MEDIUM
ENGLISH
Biology
Biological molecules (proteins) which catalyze a biochemical reaction and remain unchanged after completion of reaction are called_____________________?
A
Cofactor
Option A
B
Coenzymes
Option B
C
Activator
Option C
D
Enzymes
Option D
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MEDIUM
ENGLISH
Biology
In which of the following location enzymes controlling cellular respiration are present____________?
A
Nucleus
Option A
B
Chlorophast
Option B
C
Milochondria
Option C
D
Ribosome
Option D
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MEDIUM
ENGLISH
Biology
In golgi apparatus the maturing face is____________?
A
Biconcave
Option A
B
Convex
Option B
C
Spherical
Option C
D
Concave
Option D
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MEDIUM
ENGLISH
Biology
A cofactor made of inorganic ion which is detachable is called__________________?
A
Prosthetic group
Option A
B
Coenzyme
Option B
C
Activator
Option C
D
Cofactor
Option D
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MEDIUM
ENGLISH
Biology
An activated enzyme consisting of polypeptide chain and a cofactor is called_______________?
A
Apoenzyme
Option A
B
Holoenzyme
Option B
C
Activated enzyme
Option C
D
Both b and c
Option D
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MEDIUM
ENGLISH
Biology
Centrioles are composed of ________ triplets of microtubules.
A
3
Option A
B
9
Option B
C
10
Option C
D
15
Option D
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MEDIUM
ENGLISH
Biology
Which statement about enzyme is incorrect_________________?
A
Some of them consist solely of protein with no non protein part.
Option A
B
They catalyze a chemical reaction without being utilized.
Option B
C
All enzymes are fibrous Proteins.
Option C
D
They without their cofactor are called apoenzyme.
Option D
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MEDIUM
ENGLISH
Biology
A three dimensional dcavity bearing a specific charge by which the enzyme reacts with its substrate is called_________________?
A
Active site
Option A
B
Binding site
Option B
C
Catalytic site
Option C
D
Allosteric site
Option D
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