Question

what is the original source of energy in our biosphere (the earth)? (1 point)
atp
nadp+
the sun
the mitochondria

Explanation:

• ATP (adenosine triphosphate) is an energy - carrying molecule in cells, not the original source of energy for the biosphere.
• NADP+ (nicotinamide adenine dinucleotide phosphate) is involved in redox reactions in cells, not the primary energy source for the biosphere.
• Mitochondria are organelles that produce ATP through cellular respiration, but they rely on other energy sources.
• The sun is the ultimate source of energy for the biosphere. It provides light energy that is converted into chemical energy by photosynthetic organisms (such as plants), which then supports all other life forms through food chains and food webs.

Answer:

the sun