B8 Photosynthesis

Word equation

carbon dioxide + water → glucose + oxygen

using light

symbol equation

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Give 3 ways plants use glucose

• respiration

• making cellulose

• making amino acids, then proteins

• stored as lipids

• stored as starch

What is the inverse square law?

Light intensity ∝ 1/distance²

∝ = proportional to

the 1 over distance makes the proportion inverse

In a plant nitrates are used for

to make amino acids which form proteins for growth

symptom of nitrate deficiency

stunted growth

Magnesium used for

make chlorophyll

Mg deficiency symptoms

yellow leaves