Assertion: Glucose is the favoured respiratory substrate.
Reason: When glucose is used as respiratory substrate it is completely oxidised and RQ is 1.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false
If both assertion and reason are false.
The water logging capacity of garden soil will be determined by measuring the weight of
soil by adding water and humus
water saturated soil then heating the soil till it is dry and then measuring the weight of soil
soil by adding water, biomass and humus
soil from different locations with biomass.
Refer to the given figure and choose the correct option regarding its parts labelled as A-F
B-Graafian follicle, F-Corpus luteum
C-Graafian follicle, A-Ovum
B-Primary follicle, C-Tertiary follicle showing antrum
E-Corpus callosum, D-Antrum cavity
The process where a population inhibits the growth of other population without affecting itself is known as
amensalism
mutualism
parasitism
commensalism
Select the correct statement regarding reproduction
Mating in dogs is synchronised with lunar cycle.
Salamanders always have internal fertilisation.
In Trygon, the male introduces sperms into female through a modified pelvic fin.
Catla has internal fertilisation
Documented microfossils have been found that are as old as
2.5 billion years
1.5 billion years
3.5 billion years
2.5 million years
Which of the following is not a factor that would limit the growth of a population
Food shortage
Immigration
Disease
Famine
When plants/animals are infected with virus, they may produce an anti-viral substance that is capable of inhibiting the multiplication of that virus. Identify the correct name ofthis substance
Virion
Antivirion
Antigen
Interferon
Match the tissues/molecules mentioned in column I with those of their degrading enzymes mentioned in column II and select the correct option from the given codes.
Column I Column II
A. Cell wall (i) Proteases
B. RNA (ii) Pectinases
C. Histone (iii) Ribonucleases
D. Pectin (iv) Cellulase
A-(iv), B-(iii), C-(i), D-(ii)
A-(ii), B-(i), C-(iv), D-(iii)
A-(i), B-(ii), C-(iii), D-(iv)
A-(iii), B-(iv), C-(ii), D-(i)
A.
A-(iv), B-(iii), C-(i), D-(ii)
Refer to the given figure and select the correct option regarding its parts labelled as A, B and C.
A-Histone octamer, C-DNA
B-H1 histone, C-Histone octamer
A-H1 histone, B-DNA
A-Histone octamer, C-H1 histone