Plant Quiz

What percentage of our atmosphere is made up of nitrogen?

• 38%

• 48%

• 58%

• 68%

• 78%

What percentage of our atmosphere is made up of oxygen?

• 1%

• 21%

• 41%

• 51%

• 71%

About what percentage of the earth's atmosphere is carbon dioxide?

• 0.04%

• 0.4%

• 4%

• 14%

Which word refers to the vascular tissue in plants that conducts water and dissolved nutrients upward from the root?

• arteries

• morphrem

• veins

• xylem

• phloem

Which word refers to the vascular tissue in plants that carries sugar and other metabolic products away from the leaves to the rest of the plant?

• arteries

• morphrem

• veins

• xylem

• phloem

Which of the following IS NOT needed by plants?

• Water

• Air

• Brawndo

• Sunlight

• A source of minerals

Why do plants need their leaves?

• They make the food for the plant.

• They take in the water that is needed for photosynthesis.

• They provide the plant with minerals.

• They attract pollenating insects.

• They provide shade for the plant.

What does a plant need from soil?

• earthworms

• wood

• minerals

• sunlight

• sugar

What do the leaves of the plant make and send through the Phloem transport system?

• Water

• Sugar

• Minerals

• Carbon Dioxide

• Oxygen

The direction plants grow is influence by gravity. This is called...

• Geotropism

• Chemotropism

• Phototropism

• Thigmotropism

• Hydrotropism