4.1 Energy for Life

What is the primary role of ATP in cellular processes?

• To store genetic information

• To provide energy for cellular activities

• To act as a structural component of cell membranes

• To transport oxygen in the blood

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Which process converts ADP back into ATP?

• Hydrolysis

• Dehydration synthesis

• Phosphorylation

• Glycolysis

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What is the main function of mitochondria in eukaryotic cells?

• Photosynthesis

• Protein synthesis

• Energy production

• DNA replication

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Which molecule is a direct product of photosynthesis and serves as an energy source for cells?

• ATP

• Glucose

• ADP

• Phosphate

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In which part of the cell does the majority of ATP synthesis occur?

• Nucleus

• Cytoplasm

• Mitochondria

• Ribosome

What is the role of the sun in photosynthesis?

• It provides carbon dioxide

• It supplies energy in the form of light

• It acts as a catalyst

• It provides water

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Which of the following best describes the ATP and ADP cycle?

• ATP is converted to ADP by adding a phosphate group

• ADP is converted to ATP by removing a phosphate group

• ATP is converted to ADP by removing a phosphate group

• ADP is converted to ATP by adding a water molecule

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What is the role of glucose in cellular respiration?

• It acts as a catalyst

• It is a source of energy

• It is a waste product

• It is a structural component

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What is the primary function of phosphate groups in ATP?

• To provide structural support

• To store energy

• To act as a catalyst

• To transport molecules

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What is the main purpose of energy transfer in cells?

• To maintain cell structure

• To facilitate chemical reactions

• To store genetic information

• To transport nutrients

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