1. DNA Replication: This crucial process involves copying the entire DNA molecule, ensuring that genetic information is passed on accurately to daughter cells during cell division. Enzymes like DNA polymerase are vital for this, as they build new DNA strands by adding nucleotides, one by one, using the original strand as a template.

2. Photosynthesis: This process, occurring in plants and other photosynthetic organisms, converts light energy into chemical energy stored in sugars. Enzymes like rubisco, a key enzyme in the Calvin Cycle, catalyze the fixation of carbon dioxide into organic molecules, driving the production of glucose.

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