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Flashcards in Biochemistry Deck (14):
1

Isotopes

Atoms of one element that vary in number of neutrons in nucleus

2

Radioisotopes

Radioactive isotopes
Used in medical diagnosis, treatment, & research

3

Half-life

The amount of time it takes for a radioisotope to decay half its mass

4

Bond

Formed when 2 atomic nuclei attract the same electron(s) to achieve stability

5

Ionic bonds

Form when electrons are transferred

6

Covalent bonds

Form when atoms share electrons, resulting structure = molecule

7

Hydrophobic

Water hating, nonpolar substances

8

Hydrophilic

Water loving, polar substances

9

Characteristics of water

1) high specific heat
2) high heat of vaporisation
3) high adhesion properties
4) universal solvent
5) exhibits string cohesion tension
6) ice floats because it's less dense than water

10

pH

A measure of acidity & alkalinity of a substance

11

Buffers

Substances that resist change in pH

12

Organic compounds

Compounds that contain carbon
4 classes; carbohydrates, proteins, lipids, nucleic acids

13

Isomers

Compounds with same molecular formula but different structures

14

Hydrolysis

The breakdown of a compound with the addition of water
Digestion