Bio Set 2

Question 1

Chemistry

Answer 1

The study of the properties of a substance and its composition, as well as the changes that substances can undergo

Question 2

What are the two major branches of chemistry?

Answer 2

Organic and inorganic

Question 3

Organic chemistry

Answer 3

Study of organic compounds, compounds that contain carbon (only works if it contains carbon)

Question 4

Give three examples of organic compounds

Answer 4

Carbohydrates
Lipids
Nucleic Acid
Protiens

Question 5

Inorganic Chemistry

Answer 5

The rest of chemistry, or the study of all compounds that do not contain carbon (oxides of carbon and carbonates non-living material)

Question 6

Give two examples of inorganic compounds

Answer 6

Water, carbon dioxide

Question 7

Biochemistry

Answer 7

Branch of science concerned with the chemical processes within and related to living organisms, the study of the chemicals of living things and the changes that those chemicals undergo in order to maintain life, it is the chemistry of life!

Question 8

Food is _____________!

Answer 8

Chemical energy

Question 9

Matter

Answer 9

Anything that has weight and takes up space

Question 10

Atom

Answer 10

Basic unit of matter

Question 11

Atoms are made of subatomic particles called what?

Answer 11

Protons
Neutrons
Electrons

Question 12

Mass

Answer 12

Measure of he number atoms in an object, it is the quantity of matter in a given object, measure made by calculating its numerical data, quantitative measure of inertia

Question 13

Element

Answer 13

Pure substance that is made out of one type of atom

Question 14

Isotope

Answer 14

Atoms of an element can have different numbers of neutrons

Question 15

Isotopes are identified by their what?

Answer 15

Mass number

Question 16

Mass Number

Answer 16

protons+neutrons=mass number

Question 17

Compound

Answer 17

A substance formed by the chemical combination of two or more elements in definite proportions

Question 18

Atoms in compounds are held together by _____________________.

Answer 18

Various types of bonds

Question 19

Covalent bonds form when?

Answer 19

One or more electrons are transferred from one atom to another

Question 20

Ionic bonds form when?

Answer 20

Atoms share two electrons, it is called a single covalent bond, sometimes atoms can share 4 electrons then it is double the covalent bond

Question 21

Molecule

Answer 21

When atoms join together by covalent bonds, they form a molecule. The molecule is he smallest union of most compounds. When atoms of the same element join together, they also form a molecule

Question 22

Can Der Waal Forces

Answer 22

Because if their structure, atoms of different elements do not all have the same ability to attract electrons. Some atoms have a strong attraction for electrons than do other atoms

Question 23

Hydrogen Bond

Answer 23

Not as strong as Ionic or Covalent bonding. This takes place between water molecules and it is the attraction between the Hydrogen atom on one water molecule to the oxygen atom on another water molecule. (get into this more a little later)