21-30

Question 0

Covalent Bond

Answer 0

forms when electrons are shared between atoms.

Question 1

Ionic Bond

Answer 1

formed when one or more electrons are transferred from one atom to another

Question 2

Valence Electrons

Answer 2

the electrons in the outer shell or energy level that are available for bonding.

Question 3

pH

Answer 3

the measure of acidity or alkalinity of a solution.

Question 4

Acid

Answer 4

a substance that dissolves in water to release a hydrogen ion. (H+)

Question 5

Base

Answer 5

a substance that dissolves in water to release a hydroxide ion. (OH-)

Question 6

Deoxyribonucleic Acid (DNA

Answer 6

the nucleic acid that contains all genetic information of the cell

Question 7

Double Helix

Answer 7

The shape of DNA that resembles a spiral staircase or a twisted ladder

Question 8

Nucleic Acid

Answer 8

The building block of living organisms that passes genetic

information from one generation to the next. (e.g. DNA)

Question 9

Nucleotide

Answer 9

a monomer of nucleic acid; consisting of a sugar, phosphate, and a
nitrogen base. (e.g. A,T,G,C)

Question 10

inter

Answer 10

among or between;​​​interphase, interim

Question 11

kilo

Answer 11

one thousand; ​​​kilometer, kilogram

Question 12

ology

Answer 12

science or study of; ​​biology, zoology​

Question 13

micro

Answer 13

small; ​​​​microscope, micronucleus

Question 14

milli

Answer 14

one-thousandth; ​​​millimeter, millipede