Energy Transformations and Homeostasis

What is the primary role of feedback mechanisms in maintaining homeostasis?

• To amplify changes in the internal environment

• To maintain a stable internal environment

• To eliminate all external stimuli

• To increase the rate of metabolic reactions

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NGSS.HS-LS1-3

Which of the following is an example of a negative feedback mechanism?

• Blood clotting

• Childbirth contractions

• Regulation of blood glucose levels

• Nerve signal transmission

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NGSS.HS-LS1-3

In photosynthesis, what is the primary function of chlorophyll?

• To absorb water

• To absorb light energy

• To release oxygen

• To convert glucose into ATP

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NGSS.HS-LS1-5

Which equation best represents the process of photosynthesis?

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NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which of the following processes occurs in the mitochondria?

• Photosynthesis

• Glycolysis

• Aerobic respiration

• Fermentation

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NGSS.HS-LS1-7

What is the main purpose of cellular respiration?

• To produce glucose

• To convert light energy into chemical energy

• To produce ATP

• To release oxygen

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NGSS.HS-LS1-7

Which equation best represents aerobic cellular respiration?

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NGSS.HS-LS1-7

NGSS.HS-LS2-5

Which of the following is a product of anaerobic respiration in muscle cells?

• Ethanol

• Lactic acid

• Carbon dioxide

• Oxygen

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NGSS.HS-LS2-3

What is the role of ATP in cellular processes?

• It stores genetic information

• It acts as a structural component of cells

• It provides energy for cellular activities

• It transports oxygen in the blood

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NGSS.HS-LS1-7

What is the main difference between aerobic and anaerobic respiration?

• Aerobic respiration requires oxygen, while anaerobic does not

• Anaerobic respiration produces more ATP than aerobic

• Aerobic respiration occurs in the cytoplasm, while anaerobic occurs in the mitochondria

• Anaerobic respiration produces oxygen as a byproduct

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NGSS.HS-LS2-3