Anatomy Review of Biology

Chemistry is the science that deals with the ________ and characteristics of chemicals. Fill in the blank.

• composition

• temperature

• color

• weight

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Why is a knowledge of chemistry necessary for the understanding of physiology?

• Because of the importance of chemicals in body processes.

• Because physiology is unrelated to chemistry.

• Because chemistry only deals with non-living things.

• Because physiology ignores chemical reactions.

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Cells and their organelles are assemblies of molecules, which are composed of ________.

• chemicals

• cells

• tissues

• organs

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Matter is anything that has ______ and takes up space. Fill in the blank.

• weight

• color

• temperature

• sound

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What are the smallest units of matter with specific chemical properties?

• Atoms

• Elements

• Molecules

• Compounds

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What is the smallest unit of an element?

• Atom

• Molecule

• Cell

• Proton

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Attractions between two or more atoms are called ______. Fill in the blank.

• chemical bonds

• ionic currents

• magnetic fields

• thermal waves

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What does the pH scale measure?

• Temperature

• H+ ion concentration

• Pressure

• Volume

A pH of 7 indicates a ______ solution with equal numbers of hydrogen ions and hydroxide (OH-) ions.

• neutral

• acidic

• basic

• alkaline

A pH in the range of 0 to <7 indicates the presence of more hydrogen ions than hydroxide ions, and is considered ______.

• acidic

• basic

• neutral

• alkaline