Green slides

The mass of the tree increased due to water

The tree grew because of sunlight

The soil provided all the nutrients for growth

The tree did not grow at all

Joseph Priestley

Jan Ingenhousz

Melvin Calvin

Isaac Newton

Oxygen is given off by leaves during the day.

Carbon dioxide is given off by leaves at night.

Oxygen is given off by leaves at night.

Carbon dioxide is given off by leaves during the day.

Sunlight

Glucose

Oxygen

Carbon dioxide

Visible light

Gamma rays

Infrared

Radio waves

Different wavelengths of visible light are refracted at different angles.

The prism adds color to the light.

The light is absorbed by the prism and re-emitted as colors.

The prism splits the light into particles of different colors.

We see the color of photons that are reflected by the object.

All colors of light are absorbed by plants.

Some colors of light are absorbed while others are reflected.

The color we see is determined by the light that is transmitted through the object.

Chlorophyll a and b

Carotenoids

Anthocyanins

Xanthophylls

Leaf

Root

Stem

Flower

Guard cells

Palisade layer

Vein

Cutin

To prevent too much water loss

To allow more oxygen in

To increase sugar production

To absorb more sunlight

CO2

H2O

O2

Carbohydrates

Thylakoid

Stroma

Mitochondria

Granum

Thylakoid membrane

Stroma

Granum

Outer membrane

He discovered oxygen.

He showed that the mass of a tree increases mainly due to water.

He invented the microscope.

He proved that plants need sunlight.