A. 20 to 35 billion cells
B. 50 to 70 billion cells
C. 10 to 20 billion cells
D. 15 to 25 billion cells
If the concentration of enzyme is kept constant and amount of substrate is increased a point is reached where increase in substrates concentration does not affect the reaction rate because of____________________?
A. Enzymes get denatured at higher substrate conc
B. Rate of reaction is indirectly proportional to substrate concentration at this point
C. All the active sites on enzyme molecule are occupied
D. None of these
The dense fluid filled region in the chloroplast is____________?
A. Grana
B. Stroma
C. Thylakoid
D. None of these
An enzyme which can convert single stranded RNA into double stranded viral DNA is called____________?
A. DNAase
B. RNAase
C. DNA polymerase
D. Reverse Transcriptase
Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?
A. i & ii
B. iii & iv
C. i ii iii & iv
D. iv only
In term of spore production Selaginella is characterized by________________?
A. Homosporous
B. Hetrosporous
C. Both depending upon the conditions
D. None of these
ATP are consumed during___________?
A. Glycolysis
B. Kreb’s cycle
C. Light dependent phase
D. none of these