Science- photosynthesis and respiration

Epidermis

Outer layer containing many stomatos to control water loss

Spongy layer

Contains carbon dioxide and water needed for food production

Chloroplasts

Cell structures in which photosynthesis occurs

Chlorophyll

Green pigment in chloroplasts

Pigments

Help plants absorb light energy to make food

Light- dependent reactions

Light energy splits water into oxygen and hydrogen; oxygen is released as a waste product

Light- independent reactions

Carbon dioxide and hydrogen from light- dependent reactions combine to make glucose

Glucose

Used in plants structure and growth, a type of sugar that photosynthesis makes

Respiration

Chemical reactions that break down food molecules and release energy

Aerobic Respiration

Uses oxygen to break down smaller molecues and occurs in a cells mitochandria

Waste product

Carbon dioxide which is returned to the atmosphere