Photosynthesis and Light

What process do producers use to make sugar from sunlight?

• Respiration

• Photosynthesis

• Chemosynthesis

• Fermentation

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following describes how long light lasts in a given period?

• Light intensity

• Light quality

• Light duration

• Light range

What does photosynthesis convert into organic compounds, especially sugars?

• Oxygen

• Nitrogen

• Carbon dioxide

• Water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is a response of a plant to light?

• Phototaxis

• Phototropism

• Bioluminescence

• Photokinesis

Tags

NGSS.MS-LS1-6

How is light intensity measured?

• Lumens

• Degrees

• Hertz

• Watts

What is described as positive photokinesis?

• Faster movement with increased light intensity

• Slower movement with increased light intensity

• No change in movement with light intensity

• Movement away from light

Why is sunlight needed for photosynthesis?

• Sunlight traps the carbon dioxide needed for the process

• Sunlight provides the energy for the process

• Sunlight slows down the process

• Sunlight traps the water needed for the process

Tags

NGSS.MS-LS1-6

Why is it necessary to de-starch the plant before determining if sunlight is needed for photosynthesis?

• To ensure that any starch present in the leaf at the end of the experiment was formed during the course of the experiment.

• To ensure that there will be no starch in the leaf at the end of the experiment.

• To prevent any starch from forming in the leaf during the experiment

• To prevent oxygen from being produced by the plant during the course of the experiment.

Tags

NGSS.MS-LS1-6

Why is a part of the leaf covered with foil or dark paper?

• To prevent this part of the leaf from converting glucose to starch

• To allow this part of the leaf to remain de-starched

• To deprive that part of the leaf of sunlight

• To deprive that part of the leaf of carbon dioxide

Tags

NGSS.MS-LS1-6

The portion of the leaf unaffected by iodine

• was deprived of sunlight

• was deprived of carbon dioxide

• was deprived of water

• was deprived of chlorophyll

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6