Cellular Respiration

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Cellular Respiration Noun

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[sel-yuh-ler res-puh-rey-shuhn]

Back

Cellular Respiration

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The process in which cells use oxygen to break down glucose, releasing chemical energy for cellular activities.

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Example: The image shows glucose and oxygen turning into carbon dioxide, water, and ATP, illustrating cellular respiration.

Front

Energy Noun

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[en-er-jee]

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Energy

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The ability to do work or cause change, which is essential for all life processes and activities.

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Example: Electrical energy in a bulb converts to light and heat, showing energy transformation.

Front

Glucose Noun

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[gloo-kohs]

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Glucose

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A simple sugar molecule that serves as the primary source of energy for most living organisms.

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Example: Glucose is used in cellular respiration to produce energy, water, and carbon dioxide.

Front

Oxygen Noun

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[ok-si-jen]

Back

Oxygen

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A gas that is a necessary reactant for cellular respiration and is released as a product of photosynthesis.

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Example: Plants release oxygen during photosynthesis, which is used in cellular respiration.

Front

Respiration Noun

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[res-puh-rey-shuhn]

Back

Respiration

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The chemical process inside cells that releases energy from food, distinct from the physical act of breathing.

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Example: Glucose and oxygen are converted into carbon dioxide, water, and energy (ATP) in cellular respiration.

Front

Breathing Noun

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[bree-thing]

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Breathing

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The physical process of inhaling and exhaling air, which supplies the oxygen needed for cellular respiration.

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Example: The image shows how air moves in and out of the lungs during breathing, with arrows indicating inhaling and exhaling.

Front

Autotroph Noun

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[aw-toh-trohf]

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Autotroph

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An organism that produces its own food, typically through photosynthesis, and is also known as a producer.

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Example: A leaf uses sunlight, water, and CO2 to produce glucose and oxygen, demonstrating photosynthesis.

Front

Heterotroph Noun

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[het-er-uh-trohf]

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Heterotroph

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An organism that obtains energy by consuming other organisms because it cannot produce its own food.

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Example: A rabbit eating plants shows how heterotrophs get energy by consuming other organisms.

Front

Reactant Noun

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[ree-ak-tuhnt]

Back

Reactant

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A substance that is present at the beginning of a chemical reaction and undergoes change during the process.

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Example: Reactants like CH4 and O2 transform into products CO2 and H2O in a chemical reaction.

Front

Product Noun

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[prod-uhkt]

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Product

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A new substance that is formed as the result of a chemical reaction between reactants.

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Example: The image shows water forming from hydrogen and oxygen, illustrating a product of a chemical reaction.