Scientific Terms To Remember

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Autotrophs are green plants that prepare their own food using carbon dioxide and water in the presence of sunlight. They are called self-feeders because they do not depend directly on other organisms …

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Heterotrophs are animals that depend indirectly on plants for nutrition. They cannot make their own food and get energy by eating plants or other animals.

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Autotrophs make food for themselves and also form the base of food chains. Other living beings depend on them directly or indirectly for food and energy.

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Photosynthesis is the process by which plants prepare their food, called starch, by using water and carbon dioxide in the presence of chlorophyll and sunlight. It is the main food-making process in gr…

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Aerobic respiration uses oxygen for the complete oxidation of glucose and forms carbon dioxide, water, and a good amount of energy. Anaerobic respiration happens in the absence of oxygen, breaks gluco…

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Aerobic respiration is respiration in which oxygen is used for the complete oxidation of glucose with the formation of carbon dioxide, water, and a good amount of energy.

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Anaerobic respiration is respiration in the absence of oxygen. It is the incomplete break-down of glucose into ethanol and carbon dioxide, and releases only small quantities of energy.

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Fermentation is the process by which yeast converts sugary solution into ethanol and carbon dioxide with the help of enzymes. It is a useful biological process in food and drink production.