Biology MCQS with Answers
Respiration in plants occurs only
Day and night
Day
Day & evening
Night
The general formula of carbohydrate
Cn(H2O)n
C22H11O12
C6H12O6
C18H20O18
The fungal associations with roots of higher plants help______uptake by the plants
None
Both a & b
Minerals
Water
If the non-protein part is covalently bonded it is known aas
Activator
Product
Prosthetic group
Co-enzyme
In case of enzymes the detachable co-factor is called
In activator
Activator
Reactant
None
In living organisms,water quantity is
60 ? 70%
50 ? 50%
80 ? 70%
70 ? 90%
Which of the following points about the germ theory of disease is not true
The pure culture will produce the disease when inoculated in to susceptible animal
A specific organism can always be found in association with a given disease
The organism can be isolated & culture in laboratory
It is not possible to recover the organism in pure culture
Photosynthetic organisms probably used—— as a source of hydrogen for reducing CO2 to sugar
Sulphuric acid
Hydrogen peroxide
Hydrochloric acid
Hydrogen sulphide
Chlorophyll contains a very important compound
Sulphur
Iron
Magnesium
Phosphorus
Biotic components of ecosystem are
Micro-organisms
Animal and plants
All of above
Fungi
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