DENDROLOGY

Detailed explanation-1: -Glucose is the main product, while oxygen is the by-product of photosynthesis.

Detailed explanation-2: -The products of photosynthesis are glucose and oxygen. Although the hydrogen atoms from the water molecules are used in the photosynthesis reactions, the oxygen molecules are released as oxygen gas (O2). (This is good news for organisms like humans and plants that use oxygen to carry out cellular respiration!)

Detailed explanation-3: -Glucose is a simple food that is prepared first in the process of photosynthesis. The end products of photosynthesis are glucose and oxygen and the glucose is converted to starch. Starch is the food that gets stored in plant leaves.