Unit 3 Assessment - Cycling of Matter

Photosynthesis is a chemical reaction that occurs inside green plant cells. Which sentence describes one important energy conversion that occurs as a result of photosynthesis?

• Light is converted to chemical energy.

• Carbon dioxide is converted to light energy.

• Oxygen is converted to chemical energy

• Chlorophyll is converted to light energy.

Tags

NGSS.MS-LS1-6

Which statement about plant and animal cells is true?

• Both have a cell wall to give them support.

• Both have a large vacuole to store water.

• Both use mitochondria to produce energy

• Both use chloroplasts to store energy

Tags

NGSS.MS-LS1-6

Use the diagrams below of an animal cell and a plant cell to answer the question.

What features of plant cells make them different from animal cells?

• Larger nucleus and fewer chromosomes

• A rigid cell wall and chloroplasts.

• More cytoplasm and smaller vacuoles.

• A changing size and no definite shape.

Tags

NGSS.MS-LS1-2

Which of the following organisms produces energy from sunlight?

• Worm

• Rabbit

• Hawk

• Grass

Tags

NGSS.MS-LS1-6

Which of the following is produced during the process of cellular respiration?

• Carbon dioxide

• Sodium chloride

• Oxygen

• Sugar

Tags

NGSS.MS-LS2-3

Use the diagram of the carbon cycle below to answer questions 6 and 7.

Which statement is best represented by the diagram?

• All carbon is in the form of carbon dioxide.

• Carbon can exists in many forms, but the total amount of carbon stays the same.

• The amount of carbon in the cycle can increase or decrease based on the amount of factories

• Only living things release carbon dioxide into the atmosphere.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The diagram shows how carbon is cycled through an ecosystem. What is one way this diagram could be adjusted to model how energy is conserved in living systems?

• Include the Sun giving energy to plants.

• Replace the title “The Carbon Cycle” with a new title “The Energy Cycle”.

• Only include the processes of photosynthesis and cellular respiration.

• Remove the non-living parts of the diagram

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Becky has been asked to provide an example of how carbon is converted from a living form to a non- living form.

Which example should she use?

• Carbon dioxide in the atmosphere is absorbed by an ocean.

• Sugar in animals is converted into carbon dioxide during cellular respiration.

• Calcium carbonate in rocks is converted into sediment through weathering.

• Carbon dioxide from the air is converted into sugars during photosynthesis.

Tags

NGSS.MS-LS2-3

Use the diagram below to answer questions 9 and 10. The diagram shows a plant in a test tube being placed in a beaker. Both the test tube and beaker are filled with water. After a few minutes, small bubbles appear on the leaves of the plant.

Which change to the setup is least likely to cause an increase production of bubbles?

• Adding a bright light source.

• Adding a source of carbon dioxide to the water.

• Adding a different fluid to the water.

• Adding a second plant to the test tube.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The setup in the diagram is left outside during the day and at night. Bubbles are continuously produced regardless of the presence or absence of sunlight. What can you predict about the composition of the gas in the bubbles?

• The bubbles are always oxygen (O2).

• The bubbles are always carbon dioxide (CO2).

• During the day, the bubbles are CO2 and the bubbles are O2 at night.

• During the day, the bubbles are O2 and the bubbles are CO2 at night.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3