Matter and Energy in Ecosystems

What gas is taken in during photosynthesis?

• Argon

• Nitrogen

• Oxygen

• Carbon dioxide

Tags

NGSS.MS-LS1-6

What gas is released during photosynthesis?

• Carbon dioxide

• argon

• oxygen

• nitrogen

Tags

NGSS.MS-LS1-6

Where does the energy for photosynthesis come from?

• carbon dioxide

• oxygen

• the sun

• glucose

Tags

NGSS.MS-LS1-6

In what way are photosynthesis and cellular respiration different?

• Cellular respiration stores energy, while photosynthesis releases energy

• Cellular respiration produces oxygen, while photosynthesis uses oxygen

• Photosynthesis releases energy, while cellular respiration stores energy

• Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How do consumers get energy storage molecules?

• Absorbing sunlight

• breaking down dead organisms

• soaking it up from the ground

• feeding on other organisms

Tags

NGSS.MS-LS2-3

Where do energy storage molecules come from?

• Atmosphere

• Producers

• Consumers

• Decomposers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What elements make up energy storage molecules?

• Carbon, Nitrogen, Hydrogen

• Carbon, Oxygen, Hydrogen

• Carbon, Oxygen, Carbon Dioxide

• Carbon, Helium, Sodium.

Tags

NGSS.HS-LS1-6

A scientist set up an experimental ecosystem in a sealed room with no windows. The experimental ecosystem has plants, and animals that eat those plants. The scientist can control whether the room is light or dark with a light switch outside the room.

The amount of carbon in the air of the ecosystem started out low. Then the amount of carbon in the air started to increase. Is the increase because the scientist switched the light on or because she switched the light off? What happened to the number of energy storage molecules in the living things?

The scientist . . .

• switched the light off, and the number of energy storage molecules in the living things decreased.

• switched the light off, and the number of energy storage molecules in the living things increased.

• switched the light on, and the number of energy storage molecules in the living things increased.

• switched the light on, and the number of energy storage molecules in the living things decreased.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS1-7

A herd of deer lives in a forest where they eat the leaves of trees. The number of energy storage molecules in the trees and in the deer has increased. What has happened to the amount of carbon in the trees and in the deer?

The amount of carbon in the trees and in the deer . . .

• has increased.

• has decreased.

• has not changed.

• is not related to the number of energy storage molecules.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What do animals take in during cellular respiration?

• Sugar and carbon dioxide

• Sugar and Oxygen

• Carbon dioxide and water

• Oxygen and Water

Tags

NGSS.MS-LS2-3