C. Nitrogen is found in both DNA and proteins.
<span>Enzymes are biological catalysts (they are proteins). Enzymes regulate metabolic pathways in the body.
e.g. Digestive enzymes in your stomach speed up the hydrolysis and breakdown of carbohydrates, proteins and fats in the food you consume.</span>
Seems to be C, keep posted!
Answer:
During light reaction of Photosynthesis ATP and NADPH are formed.
Explanation:
Reactions driven by solar energy
H2O=H+ + OH-
4OH- - 4e- =4OH
4OH=2H2O+O2
Second reaction
NADH+e- +H+=NADPH
Carbon dioxide fixation occurs during Calvin cycle.Carbon dioxide is being fixed into glucose molecule.
The name of the enzyme is Ribulosebisphosphate Carboxylase(RUBISCO)
The normal substrate for this enzyme is Ribulose bisphosphate(RUBP)
Answer:
Three theoretical models for the replication of DNA had been proposed in the past. Out of these, the method of semi-conservative replication is most widely accepted.
Conservative replication: In this method, no DNA unwinding takes place. The parent DNA gives rise to daughter DNA.
Dispersive Method: In this method, the chains in the DNA molecule break and recombination occurs randomly. The daughter and parent strands will have segments of recombinant DNA.
Semi- conservative: In this method, the two strands of the double helix unwind. Each strand acts as a template for the synthesis of a new strand.
DNA replication is more complex in eukaryotes as compared to prokaryotes. Prokaryotes have a single point of origin from where the replication begins. Eukaryotes have multiple points of origin. Eukaryotic cells have a unidirectional method of replication whereas prokaryotes do not. Prokaryotes just have two polymerases whereas eukaryotes have more than four. The replication rate is faster in prokaryotes.
