Answer: The correct option is ![HCO_3^-](https://tex.z-dn.net/?f=HCO_3%5E-)
Explanation:
According to the Bronsted Lowry conjugate acid-base pair, an acid is a substance that donates protons and a base is a substance that accepts protons.
From the given options,
represents a Brønsted Lowry base as it is accepting
and
represents a Brønsted Lowry acid as it is donating
.
Stroma, in botany, refers to the colorless fluid surrounding the grana within the chloroplast. Within the stroma are grana, stacks of thylakoid, the sub-organelles, the daughter cells, where photosynthesis is commenced before the chemical changes are completed in the stroma.
Answer: Sunlight
Explanation: Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Hope I helped!!