Plants 2

Front

What are some uses of plants?

Back

Plants can provide oxygen, be used for food, building materials, medicines, furniture, and remove carbon dioxide from the atmosphere.

Front

Why are plants essential for life on Earth?

Back

Without plants and trees, there would be no life on Earth.

Front

What is photosynthesis?

Back

Photosynthesis is a chemical reaction that occurs in the leaves of green plants, using carbon dioxide and water to produce oxygen and glucose, with light absorbed by chlorophyll.

Front

What is the word equation for photosynthesis?

Back

Carbon dioxide + water → glucose + oxygen

Front

What is the chemical equation for photosynthesis?

Back

6CO2 + 6H2O → C6H12O6 + 6O2

Front

What are some adaptations of a leaf?

Back

Leaves are thin, broad, contain stomata, xylem, phloem, many chloroplasts, and air spaces.

Front

How does a plant get water?

Back

Water is absorbed through the root hair cell from the soil, diffuses into the xylem, moves up the stem, and is pulled up as it evaporates from the leaf.

Front

What affects water loss from a plant?

Back

Temperature and movement of air.

Front

How does gaseous exchange occur in plants?

Back

Oxygen enters and carbon dioxide exits through the stomata, with guard cells regulating the gas volume. Carbon dioxide moves through air spaces to palisade cells, while oxygen diffuses in the opposite direction.

Front

What are stomata?

Back

Stomata are pores on the underside of a leaf, surrounded by guard cells, and can be observed using a microscope.