Ecology Energy Transformation

Which statement below best describes the flow of matter and energy through trophic levels?

• Energy is transferred between organisms, and matter is released as heat.

• Matter decreases by 10% as organisms consume one another.

• Energy and matter are recycled by decomposers

• Energy flows from one direction, and matter cycles.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Matter flows through the trophic levels of food webs when carbon dioxide in the atmosphere is converted into a chemical compound through which process?

• Decomposition

• Photosynthesis

• Cellular Respiration

• Nitrogen Fixation

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NGSS.MS-LS1-6

Which of the following would best represent the energy conversions of cellular respiration when glucose is broken down and energy is stored in ATP?

• Radiant energy --> chemical energy

• Chemical energy --> chemical energy

• Solar energy --> kinetic energy

• Mechanical energy --> chemical energy

Tags

NGSS.HS-LS1-7

In cellular respiration, glucose and oxygen are converted to-

• oxygen, water, light

• lactic acid and ATP

• carbon dioxide and starch

• carbon dioxide, water and ATP

Tags

NGSS.HS-LS1-7

In energy, pyramids, the amount of energy at each trophic level-

• decreases when energy is transformed to heat

• increases when organisms consume other organisms

• decreases when matter is stored in organisms

• increases when decomposers return nutrients to the soil

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Only about 10% of the energy transferred from one trophic level to the next.

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In a food web, the arrows show transfers of matter and energy.

• False

• True

Tags

NGSS.MS-LS2-3

Matter is recycled in an ecosystem with the help of -

• producers

• decomposers

• primary consumers

• tertiary consumers

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a producer? 

• an organism that consumes other organisms
• an organism that uses the suns energy to make its own food
• an organism that breaks down other organisms 

Where does photosynthesis take place? 

• in the chloroplast of a plant cell
• in the mitochondria of a plant cell
• in the mitochondria of an animal cell
• in the chloroplast of an animal cell

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3