Cfe Comprehensive Science

Plants make it's own food by a process called photosynthesis. What is the energy conversion that occurs during the process known as 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.

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What is true about animal cells?

• Both have a cell wall to give them support.

• Both have a large vacuole to store water.

• Both use mitochondria to release energy.

• Both use chloroplasts to store energy.

What makes a plant cell different from an animal cell?

• Larger nucleus and fewer chromosomes.

• A rigid cell wall and chromosomes.

• More cytoplasm and smaller vacuoles.

• A changing size and no definite shape.

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What is an organism that produce energy from sunlight?

• Worm

• Fish

• Snake

• Grass

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

• Carbon dioxide

• Sodium Cloride

• Oxygen

• Sugar

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Which statement is best represented by this diagram?

• All carbon is in the form of carbon dioxide.

• Carbon can exist 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 number of factories.

• Only living things release carbon dioxide into the atmosphere.

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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

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Sam has been asked to provide an example of how carbon is converted from a living form to a nonliving 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.

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NGSS.MS-LS1-6

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.

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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.

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