aineenvaihdunta

    Master this deck with 16 terms through effective study methods.

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    Created by @yourstruly

    How do animal cells obtain chemical energy?

    By breaking down food molecules through sequential reactions.

    What percentage of released energy is used as heat?

    Approximately 60% of the energy is lost as heat.

    What happens to the remaining energy after heat loss?

    About 40% is stored in molecules like ATP for energy transport.

    What is ATP composed of?

    Adenine, ribose, and three phosphate groups.

    What occurs during ATP hydrolysis?

    ATP breaks down into ADP and inorganic phosphate, releasing energy.

    What role does phosphorylation play in cellular processes?

    It increases the chemical energy of a molecule by adding a phosphate group.

    What is the function of a kinase?

    An enzyme that transfers a phosphate group from ATP to a substrate.

    What does a phosphatase do?

    It removes a phosphate group from a substrate.

    How does phosphorylation affect protein structure?

    It can change the conformation of a protein, activating or inactivating it.

    What happens to ATP during active transport?

    It transfers a phosphate group to another molecule, increasing its chemical energy.

    How is ATP formed?

    By adding a phosphate group to ADP, requiring energy from nutrient breakdown.

    What distinguishes oxidation from reduction?

    Oxidation involves losing electrons, while reduction involves gaining electrons.

    What occurs when a carbon compound is oxidized?

    It loses hydrogen or gains oxygen, releasing energy.

    What role do coenzymes like NAD and FAD play in metabolism?

    They accept hydrogen atoms and become reduced, storing energy.

    What is the consequence of a substance being reduced?

    It gains electrons, often in the form of hydrogen atoms.

    What is the implication of oxidation in energy release?

    It results in the release of energy from the substance.