DENDROLOGY

Detailed explanation-1: -The ultimate source of energy for all living things is the leaf. Plants are able to carry out photosynthesis because they contain the organelle known as a mitochondrion. One important sugar that results from photosynthesis is cellulose. Light energy is changed to cell energy in stage 1 of photosynthesis.

Detailed explanation-2: -Photosynthesis occurs in the chloroplasts, whereas cellular respiration occurs in the mitochondria. Photosynthesis makes glucose and oxygen, which are then used as the starting products for cellular respiration.

Detailed explanation-3: -In plants and algae, which developed much later, photosynthesis occurs in a specialized intracellular organelle-the chloroplast. Chloroplasts perform photosynthesis during the daylight hours.

Detailed explanation-4: -Chlorophyll. Chlorophyll is a pigment that gives plants their green color, and it helps plants create their own food through photosynthesis.