10BD 8-1: Energy for Life Processes

Which of the following best describes autotrophs?

• Organisms that obtain energy by consuming other organisms

• Organisms that produce their own food using sunlight or chemical energy

• Organisms that decompose organic material

• Organisms that rely solely on inorganic substances for energy

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What happens when ATP becomes ADP?

• a bond is created

• a phosphate is broken off

• adenine bonds to a phosphate

• energy is gained

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Explain how the ATP-ADP cycle is crucial for cellular energy transfer. Provide an example of a cellular process that utilizes this cycle.

• The ATP-ADP cycle is not involved in cellular energy transfer.

• The ATP-ADP cycle stores energy in the form of glucose.

• The ATP-ADP cycle involves the conversion of ATP to ADP, releasing energy for cellular processes such as muscle contraction.

• The ATP-ADP cycle is only used during photosynthesis.

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Which of the following statements is true about heterotrophs?

• Heterotrophs can produce their own food through photosynthesis.

• Heterotrophs rely on consuming other organisms for energy.

• Heterotrophs are capable of converting sunlight into chemical energy.

• Heterotrophs are only found in aquatic environments.

The main difference between ATP and ADP is ____.

• ADP is broken upon entering the cell, while ATP is broke while leaving the cell

• ATP has energy and ADP is lacking energy

• ATP is broken upon entering the cell, while ADP is broken while leaving the cell

• ATP is lacking energy and ADP has energy

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Describe the role of ATP in cellular activities and explain why it is often referred to as the "energy currency" of the cell.

• ATP is a storage molecule for genetic information.

• ATP provides energy for cellular activities by releasing a phosphate group, which is why it is called the "energy currency" of the cell.

• ATP is used to transport oxygen in the bloodstream.

• ATP is only involved in the process of photosynthesis.

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What is the primary difference between autotrophs and heterotrophs in terms of energy acquisition?

• Autotrophs obtain energy from inorganic substances, while heterotrophs obtain energy from organic substances.

• Autotrophs obtain energy from organic substances, while heterotrophs obtain energy from inorganic substances.

• Autotrophs and heterotrophs both obtain energy from sunlight.

• Autotrophs and heterotrophs both obtain energy from chemical reactions.

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Analyze the impact of a malfunction in the ATP-ADP cycle on cellular functions. What might be a potential consequence?

• Increased production of glucose

• Decreased ability to perform cellular work, leading to cell death

• Enhanced cellular respiration

• Unaffected cellular functions

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Which of the following processes directly uses ATP in cells?

• Photosynthesis

• Cellular respiration

• Active transport

• Fermentation

Compare and contrast the energy conversion processes in autotrophs and heterotrophs. How do these processes support life on Earth?

• Both autotrophs and heterotrophs convert sunlight into chemical energy.

• Autotrophs convert sunlight into chemical energy, while heterotrophs convert chemical energy from food into usable energy, supporting life by maintaining the flow of energy through ecosystems.

• Autotrophs and heterotrophs both rely on chemical energy from food.

• Autotrophs and heterotrophs both rely on sunlight for energy.

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