Molecular Interactions

Question 1

Elements

Answer 1

Building blocks of all matter including the human body, simplest kinds of matter,

Question 2

Essential Elements

Answer 2

Elements that are necessary for life

Question 3

Trace Elements

Answer 3

Elements that are found in low concentrations, essential to cell function. Especially apparent when they are absent

Question 4

Electrons

Answer 4

Negative charge

Question 5

protons

Answer 5

Positive charge

Question 6

Neutrons

Answer 6

Neutral

Question 7

Atomic Number

Answer 7

Number of protons and number of electrons

Question 8

Atomic Mass

Answer 8

Adding the weight of protons and neutrons together

Question 9

When an atom gains or loses electrons it becomes..

Answer 9

An ion of the same element

Question 10

when an atom gains or lose protons it becomes..

Answer 10

A different element

Question 11

when an atom gains or loses neutrons it becomes…

Answer 11

An isotope of the same element

Question 12

Covalent Bonds

Answer 12

Strong bonds that result when two atoms share a pair of electrons, one from each atom.

Question 13

Polar Molecules

Answer 13

Molecules formed by covalent bonding between atoms where the shared electrons are distributed UNEVENLY. Generally dissolve easily in water (hydrophilic) .

Question 14

Non-Polar Molecules

Answer 14

Molecules formed by covalent bonding, shared electrons that are distributed EVENLY. Generally do not dissolve easily in water (hydrophobic)

Question 15

Solute

Answer 15

Solid part of any solution, any substance that collectively dissolves in liquids is called a solute.

Question 16

Solvent

Answer 16

Liquid portion of a solution, the liquids in which a solute dissolves.

Question 17

Hydrophilic

Answer 17

Molecules dissolve regularly in water

Question 18

Hydrophobic

Answer 18

Molecules do not dissolve readily in water (fats and oils)

Question 19

pH value of 7.0

Answer 19

Water. This is considered neutral

Question 20

Acidic Solutions have a pH value of…

Answer 20

Less than 7

Question 21

Alkaline have a pH value of..

Answer 21

More than 7

Question 22

Normal pH of blood in the human body

Answer 22

7.4

Question 23

Essential Amino Acids

Answer 23

The NINE proteins that must be obtained through diet

Question 24

Peptide

Answer 24

Chain of 2-9 amino acids

Question 25

Polypeptide

Answer 25

Chain of 10-100 amino acids

Question 26

Protein

Answer 26

Chain of more than 100 amino acids

Question 27

Globular proteins

Answer 27

Proteins that have amino acid chains that are folded into ball-like shape. (Tertiary Structure)