Let's talk about plants

They absorb water and minerals from the soil, synthesize plant growth regulators, and store reserve food material.

The stem is the part of the plant which is found above the ground. The bark of trees are brown in colour and younger stems are green in colour.

Leaves are the most important part of a plant. They contain chlorophyll that helps the plants to prepare their food using sunlight, carbon dioxide and water.

a vascular tissue that transports water throughout a plant’s body.

The vascular plant tissue is responsible for distributing and transporting carbohydrates/sugar produced during photosynthesis.

the cycle whereby atmospheric oxygen is converted to carbon dioxide in animal respiration and regenerated by green plants in photosynthesis.

• nitrogen cycle

• carbon-nitrogen cycle

• oxygen-carbon cycle

• oxygen cycle

is the evaporation of water from a plant's leaves

• condensation

• sublimation

• transpiration

• transportation

Type of gas that is needed in photosynthesis

• oxygen

• carbon dioxide

• nitrogen

• pollution

Resources that plants need to grow

• Space

• Air

• Water and Nutrients

• Sunlight

Air is made up of 78% nitrogen, but few living things can use nitrogen gas. Select a suitable explanation for how nitrogen is made available to living things.

• Nitrogen gas is produced during photosynthesis.

• Living things do not need nitrogen to survive.

• Nitrogen gas is fixed and then absorbed by plants. When animals eat plants, they take in nitrogen stored in plants.

• Nitrogen gas condenses and is then absorbed by living things.