Photosynthesis Quiz

The dissolved carbon dioxide in a lake is used directly by

• autotrophs

• parasites

• fungi

• decomposers

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

An enzyme known as rubisco enables plants to use large amounts of carbon dioxide. This enzyme is most likely active in the

• nucleus

• vacuoles

• mitochondria

• chloroplasts

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NGSS.MS-LS1-6

The diagram below represents events associated with a biochemical process that occurs in some organisms. Which statement concerning this process is correct?

• The process represented is respiration and the primary source of energy for the process is the Sun.

• The process represented is photosynthesis and the primary source of energy for the process is the Sun.

• This process converts energy in organic compounds into solar energy which is released into the atmosphere.

• This process uses solar energy to convert oxygen into carbon dioxide.

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NGSS.MS-LS1-6

A green plant is kept in a brightly lighted area for 48 hours. What will most likely occur if the light intensity is then reduced slightly during the next 48 hours?

• A. Photosynthesis will stop completely.

• B. The rate at which nitrogen is used by the plant will increase.

• C. The rate at which oxygen is released from the plant will decrease.

• D. Glucose production inside each plant cell will increase.

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NGSS.MS-LS1-6

NGSS.MS-LS2-1

An organism was added to a test tube containing water, which was then sealed and placed in sunlight. The graph shows an increase in the oxygen content of the test tube over a period of time. Which type of organism was most probably added to the test tube?

• fresh-water animal

• green alga

• ameba

• virus

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Most of the oxygen gas present in the atmosphere is produced as a result of

• photosynthesis

• cellular respiration

• dehydration synthesis

• decomposition

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which set of terms best identifies the diagram below?

• photosynthesis, inorganic molecules, decomposition

• respiration, organic molecules, digestion

• photosynthesis, organic molecules, respiration

• respiration, inorganic molecules, photosynthesis

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

For the process of autotrophic nutrition, the arrow labeled A would most likely represent the direction of movement of

• carbon dioxide, water, and solar energy

• oxygen, glucose, and solar energy

• carbon dioxide, oxygen, and heat energy

• glucose, water, and heat energy

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Carbon dioxide makes up less than 1 percent of Earth’s atmosphere, and oxygen makes up about 20 percent. These percentages are maintained most directly by

• respiration and photosynthesis

• the ozone shield

• synthesis and digestion

• energy recycling in ecosystems

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

In the leaf of a plant, guard cells help to

• destroy atmospheric pollutants when they enter the plant

• regulate oxygen and carbon dioxide levels

• transport excess glucose to the roots

• block harmful ultraviolet rays that can disrupt chlorophyll production

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3