Aerobic vs Anaerobic Respiration

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Photosynthesis Noun

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[foh-toh-sin-thuh-sis]

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Photosynthesis

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The process where plants use sunlight, water, and carbon dioxide to create their own food and release oxygen.

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Example: A plant uses sunlight, water, and carbon dioxide to create its own food (sugars) and release oxygen as a byproduct.

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Cellular Respiration Noun

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

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Cellular Respiration

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The metabolic process in cells that converts energy from nutrients into adenosine triphosphate (ATP), the cell's energy currency.

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Example: This image shows the overall process of aerobic cellular respiration, where glucose and oxygen are converted into carbon dioxide, water, and energy (ATP).

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Aerobic Respiration Noun

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[air-oh-bik res-puh-rey-shuhn]

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Aerobic Respiration

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A form of cellular respiration that requires the presence of oxygen to efficiently generate large amounts of ATP.

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Example: This image shows the chemical reaction for aerobic respiration, where glucose and oxygen are converted into carbon dioxide, water, and usable energy (ATP).

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Anaerobic Respiration Noun

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[an-uh-roh-bik res-puh-rey-shuhn]

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Anaerobic Respiration

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A form of cellular respiration that generates energy by breaking down nutrients in the complete absence of oxygen.

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Example: This diagram shows how glucose is broken down without oxygen to produce a small amount of energy (ATP), along with ethyl alcohol and carbon dioxide.

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ATP (Adenosine Triphosphate) Noun

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[uh-den-uh-seen trahy-fos-feyt]

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ATP (Adenosine Triphosphate)

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An energy-carrying molecule, often called the 'energy currency' of the cell, that powers various cellular activities and processes.

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Example: This diagram shows that food (represented by rice) enters the mitochondrion, which then produces ATP, the main energy currency for the cell.

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Glucose Noun

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[gloo-kohs]

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Glucose

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A simple sugar that serves as a primary energy source for living organisms through the process of cellular respiration.

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Example: This image shows a commercial product box for glucose powder, linking the term to a source of quick energy but failing to explain its scientific role.

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Chloroplast Noun

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[klor-uh-plast]

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Chloroplast

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The specific organelle found within plant and algal cells where the entire process of photosynthesis takes place.

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Example: This diagram shows the internal structure of a chloroplast, labeling key parts like the thylakoids, stroma, and inner/outer membranes where photosynthesis occurs.

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Reactant Noun

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[ree-ak-tuhnt]

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Reactant

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A substance that is consumed and undergoes change during the course of a chemical reaction to form new products.

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Example: This image uses a baking analogy to show that reactants, like brownie mix and eggs, are the starting ingredients that get used in a process.

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Mitochondria Noun

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[mahy-tuh-kon-dree-uh]

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Mitochondria

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The organelle in eukaryotic cells where aerobic respiration and most ATP synthesis occurs, often called the cell's powerhouse.

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Example: This diagram shows a cross-section of a mitochondrion, the organelle where aerobic respiration occurs, breaking down glucose to produce ATP energy for the cell.

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Glycolysis Noun

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[glahy-kol-uh-sis]

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Glycolysis

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The initial metabolic pathway that breaks down a molecule of glucose into two molecules of pyruvate in the cytosol.

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Example: This diagram shows glycolysis, the process where one glucose molecule is broken down into two pyruvate molecules, producing a net gain of energy (ATP).