APES Unit 1 Exam Review

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What are carbohydrates?

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Carbohydrates are organic compounds made up of carbon, hydrogen, and oxygen, and they serve as a primary energy source for living organisms.

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What is an example of a carbohydrate?

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An example of a carbohydrate is glucose.

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What is cellulose and its significance?

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Cellulose is a carbohydrate that serves as a raw material for ethanol production and is a key structural component in plant cell walls.

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What are the primary functions of carbohydrates in plants and animals?

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Carbohydrates are used by plants and animals for the storage of energy.

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What type of bond is formed when elements share electrons?

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Covalent bonds are formed by the sharing of electrons between elements.

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What distinguishes compounds from molecules?

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Compounds are substances that contain more than one element, while molecules can consist of one or more atoms of the same or different elements.

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What is matter?

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Matter is anything that has volume and mass.

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What is the study of systems in environmental science?

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The study of systems in environmental science involves understanding predator-prey relationships and energy exchanges within ecosystems.

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What are ionic bonds?

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Ionic bonds are formed when one atom donates an electron to another atom, resulting in attraction between positively and negatively charged ions.

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What are isotopes?

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Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.