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Anatomy & Physiology 1 > Chapter 2 Chemical Basis of Life ; Exam 1 > Flashcards

Chapter 2 Chemical Basis of Life ; Exam 1 Flashcards

1
Q

Required by the body in a large amount

A

Bulk elements

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2
Q

Required by the body in small amounts

A

Trace elements

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3
Q

Required by the body in very minute amounts

A

Ultratrace elements

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4
Q

number of protons in the nucleus

A

Atomic numbers

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5
Q

number of protons + number of neutrons

A

Atomic weight

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6
Q

Atoms with the same atomic numbers but different atomic weights

A

Isotopes

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7
Q

Particle formed when two or more atoms chemically combine

A

Molecule

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8
Q

Particle formed when two or more atoms of different elements chemically combine

A

Compound

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9
Q

Forms when atoms combine with other atoms

A

Chemical bounds

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10
Q

Atom that gains or loses electrons, electrically charged

A

Ion

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11
Q

Formed when atom loses electrons, + charged ion

A

Cation

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12
Q

Formed when atom gains electrons, - charged

A

Anion

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13
Q

Formed when electrons are transferred from one atom to another atom

A

Ionic bonds

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14
Q

Formed between atoms that share electrons

A

Covalent bonds

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15
Q

molecules with a slightly negative end & slightly positive end. Results from unequal sharing of electrons

A

Polar molecules

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16
Q

Weak attraction between slightly positive end of one polar molecule and slightly negative end of another polar molecule

A

hydrogen bond

17
Q

starting materials of a chemical reaction

A

Reactants

18
Q

substances formed at the end of chemical reactions

A

Products

19
Q

Ph <7. greater concentration of H+ than OH-

A

Acidic

20
Q

Ph >7. higher concentration of OH- than H+

A

Alkaline (Basic)

21
Q

blood ph of 7.4

A

Normal range of blood

22
Q

blood ph of 7.0-7.3

A

Acidosis

23
Q

blood ph of 7.5-7.8

A

Alkalosis

24
Q

Helps regulate/maintain proper blood ph

A

Buffers

Anatomy & Physiology 1 (5 decks)

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