Grade 8: Plants

Energy is passed from one organism to another along what?

• Biomass

• A food chain

• A cycle

• By plants

What do plants need to photosynthesise?

• Oxygen

• Food

• Biomass

• Carbon dioxide

The process of photosynthesis:

• Carbon dioxide + water + energy --> Oxygen and Glucose

• Energy and food --> oxygen

• oxygen + water + energy --> Carbon dioxide and Glucose

• Water and carbon dioxide make food

Where in the plant does photosynthesis take place?

• Flower

• Root

• Leaf

• Stem

What is biomass?

• A mass of biological waste

• Material made from living cells and tissues

• Plants

• Animals

Which layer inside the leaf does most of the photosynthesis?

• Palisade layer

• Spongy layer

• Veins

• Epidermis

What is the waxy layer on the leaf responsible for?

• Keeping moisture in

• Preventing the leaf from drying out

• Protection

• All of the above

What cells transport water and minerals from the roots to the leaves?

• Veins

• Arteries

• Xylem

• Hollow tubes

An adaptation of roots to perform its function

• They contain millions of root hairs

• The root hairs are only 1 cell layer thick

• They branch deep into the soil

• All of the above

This variable is the variable you are measuring in an experiment and will dependent on what you are changing.

• Controlled variable

• Independent variable

• Fixed variable

• Dependant variable