Nutrition, Photosynthesis & Cellular Respiration

Autotrophs might survive when heterotrophs cannot, because autotrophs are able to

• reproduce asexually

• become dormant

• exist without respiration

• make their own food

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NGSS.MS-LS1-6

Which statement best describes animals that are heterotrophs?

• They are able to convert light energy into useful chemical bond energy.

• They are able to synthesize organic materials from inorganic raw materials.

• They are unable to consume preformed organic compounds.

• They are unable to synthesize organic materials from inorganic raw materials.

The diagram below illustrates the movement of materials involved in a process that is vital for the energy needs of organisms.

The process illustrated occurs within

• chloroplasts

• mitochondria

• ribosomes

• vacuoles

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NGSS.MS-LS1-6

NGSS.MS-LS1-7

Which activity occurs in the process of photosynthesis?

• Chemical energy from organic molecules is converted into light energy.

• Organic molecules are obtained from the environment.

• Organic molecules are converted into inorganic food molecules.

• Light energy is converted into the chemical energy of organic molecules.

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NGSS.MS-LS1-6

NGSS.MS-LS1-7

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.

Tags

NGSS.MS-LS1-6

The diagram below represents a cell organelle involved in the transfer of energy from organic compounds.

The arrows in the diagram could represent the release of

• ATP from a chloroplast carrying out photosynthesis

• glucose from a chloroplast carrying out respiration

• carbon dioxide from a mitochondrion carrying out respiration

• oxygen from a mitochondrion carrying out photosynthesis

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NGSS.MS-LS1-6

NGSS.MS-LS1-7

During the process of cellular respiration, energy is released from

• carbon dioxide

• chemical bonds

• water molecules

• oxygen atoms

Tags

NGSS.MS-LS1-7

Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the

• ribosomes

• mitochondria

• vacuoles

• nuclei

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NGSS.MS-LS1-7

Mitochondria provide ribosomes with

• ATP for protein synthesis

• amino acids for protein synthesis

• oxygen for respiration

• carbon dioxide for the production of sugars

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NGSS.MS-LS1-2

NGSS.MS-LS1-7

An energy-rich organic compound needed by organisms is

• salt

• oxygen

• glucose

• water

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NGSS.MS-LS1-6

NGSS.MS-LS2-3