Question

1. Describe the similarities and differences
between carbohydrates and the other
three classes of biomolecules.
2. What roles do photosynthesis and
cellular respiration play in the formation
of carbon-based compounds?

(In really and very short sentences, like 1-2 sentences)

Answer 1

1. All four are carbon-based biomolecules built from smaller units and essential for life. Carbohydrates mainly give quick energy and structure (made of sugars), proteins do catalysis and structural jobs (amino acids), lipids store long-term energy and make membranes (nonpolar), and nucleic acids store genetic information (contain N and P).

2. Photosynthesis uses sunlight to turn CO2 and water into glucose and other organic carbon compounds, building biomass. Cellular respiration breaks those compounds down to release energy and CO2, returning carbon to the atmosphere.