AP BIOLOGY

Detailed explanation-1: -Raw materials for photosynthesis are carbon dioxide, water, and sunlight. Carbon dioxide is produced through the exchange of gases. This function is performed by stomata.

Detailed explanation-2: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

Detailed explanation-3: -The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf. Oxygen, a by-product of photosynthesis, and water vapor exit the leaf. In most land plants, water enters the roots and is transported up to the leaves through specialized cells known as xylem (pronounced zigh-lem).

Detailed explanation-4: -Carbon monoxide as a photosynthetic target Recently, researchers have proposed a two-step process towards the solar-driven synthesis of hydrocarbon fuels using CO as an intermediate16, 17, 18. Therefore, CO is one of the most attractive targets of artificial photosynthesis.

Detailed explanation-5: -What are the raw materials, or reactants, for Stage 2 of photosynthesis, and where do these materials come from? The reactants (or raw materials) are hydrogen (gotten when water was split in stage one), energy (absorbed from the sun in stage 1), and carbon dioxide from the air.