Which process in photosynthesis uses energy from the sun?(1 point)
Responses
absorbing carbon dioxide
absorbing carbon dioxide
releasing oxygen
releasing oxygen
splitting water into hydrogen and oxygen
splitting water into hydrogen and oxygen
combining carbon dioxide and hydrogen
combining carbon dioxide and hydrogen
The process in photosynthesis that uses energy from the sun is splitting water into hydrogen and oxygen.
The process in photosynthesis that uses energy from the sun is splitting water into hydrogen and oxygen. To arrive at this answer, we need to understand the different processes that occur during photosynthesis. Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight into chemical energy in the form of glucose. It consists of two main stages: the light-dependent reactions and the light-independent reactions.
During the light-dependent reactions, energy from sunlight is absorbed by chlorophyll molecules in the chloroplasts of plant cells. This energy is used to split water molecules into hydrogen ions (H+) and oxygen gas (O2) through a process called photolysis. The released oxygen gas is then released into the atmosphere.
The light-independent reactions, also known as the Calvin cycle, occur in the stroma of the chloroplasts. In this process, carbon dioxide (CO2) from the atmosphere is combined with the hydrogen ions produced during the light-dependent reactions, using the energy stored in ATP molecules and NADPH molecules to form glucose (C6H12O6).
So, among the given options, splitting water into hydrogen and oxygen is the process that directly utilizes the energy from the sun.