Energy Flow and Matter Cycles

Jefferson’s class was studying sunflowers. They learned that sunflowers are able to make their own food. Which parts of a sunflower collect most of the sunlight needed to make food?

• roots

• seeds

• leaves

• flowers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In multicellular organisms, different structures have different functions. Which function is carried out in the leaves of a plant?

• making seeds

• absorbing light

• producing flowers

• absorbing food

Tags

NGSS.MS-LS1-6

Which of these best demonstrates the path water takes through a plant?

• Z - Y - W - X

• X - W - Y - Z

• Z - Y - X - W

• W - X - Y - Z

In which way are sugars usually transported throughout a pine tree?

• circular from the top to the bottom of the trunk

• up from the roots to the branches

• down from the needles to the roots

• across from the cones to the needles

What is the function of the stomata of plant leaves?

• Absorbing sunlight.

• Absorbing carbon dioxide needed for photosynthesis.

• Storing sugars produced during photosynthesis.

• Obtaining water needed for photosynthesis.

Tags

NGSS.MS-LS1-6

What are some things the roots do for a plant?

• Take oxygen from the soil.

• Get sunlight and produce food.

• Take water from the soil.

• Keep the plant in the soil.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

A disease damages the stem of a plant.

How is this likely to harm the plant?

• The plant may not be able to carry water to its leaves.

• The plant may not be able to carry nutrients from its leaves to its other parts.

• The plant may not be able to get carbon dioxide from the air.

• The plant may not be able to stay in the soil.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

Where do plants lose the most water from?

• Leaves.

• Stem.

• Roots.

• Flowers.

Complete the sentence.

One of the main jobs of _________ is to support the leaves.

• the flowers

• the seeds

• the roots

• the stem

In addition to oxygen, what do plants produce during photosynthesis?

• light energy

• chlorophyll

• carbon dioxide

• sugar

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3