UNIT 1 Study Guide Questions

Question 1

According to the scientific method what has the highest level of authority?

Answer 1

Scientific Law

Question 2

All living things are composed of

Answer 2

Cells

Question 3

The genetic change in a population through time is

Answer 3

Evolution

Question 4

The smallest unit capable of doing all the requirements of life

Answer 4

Cell

Question 5

The ability to produce an individual of the same species as you is called

Answer 5

Reproduction

Question 6

The number of atoms of an element present at the beginning of a chemical reaction must equal the number of atoms of the same element at the end of the chemical reaction

Answer 6

Conservation of mass

Question 7

This molecule is responsible for the transmission of species characteristics from one generation to another

Answer 7

DNA

Question 8

The ability to acquire store and use energy is ?

Answer 8

Metabolism

Question 9

Plants have the ability to convert solar energy into chemical energy what is this called

Answer 9

Photo synthesis

Question 10

The ability the body has to maintain its internal environment with in a narrow range of pH, temp, and blood glucose levels is an example of what ?

Answer 10

Homeostasis

Question 11

Animals have the ability to convert the energy in glucose into ATP for use by their cells this is an example of

Answer 11

Cellular respiration

Question 12

The smallest subdivision of an element that retains its characteristic chemical properties is

Answer 12

Atom

Question 13

Name two subatomic particles found in the nucleus of an atom

Answer 13

Protons and Neutrons (Electrons move around nucleus)

Question 14

The particle of an atom that carries a negative charge

Answer 14

Electron

Question 15

The particle of an atom that carries a positive charge

Answer 15

Protron

Question 16

What portion of an atom is involved in forming chemical bonds

Answer 16

Outermost shell

Question 17

The number of protons

Answer 17

Equal to the atomic number

Question 18

A substance that accepts hydrogen ions is called

Answer 18

Base

Question 19

A substance that gives up hydrogen ions in water is called

Answer 19

Acid

Question 20

The type of bond holding molecular oxygen together is cald

Answer 20

polar covalent bond

Question 21

An attractive force between two unlike substances is called

Answer 21

Adhesion

Question 22

What type of bond holds table salt (NaCl) together

Answer 22

Ionic bond

Question 23

Hydrochloric acid gives up hydrogen ions in water, therefore it is classified as a

Answer 23

Dehydration Synthesis

Question 24

What type of bond holds individual atoms of a water molecule together?

Answer 24

Polar Covalent Bonds

Question 25

An attractive force between two like substances is called

Answer 25

Cohesion

Question 26

The type of bond that forms between the amino end of one animo acid and the carboxyl end of another amino acid is called

Answer 26

Peptide bond

Question 27

Large bodies of water have the ability to maintain a relatively constant temp. This characteristic of water is due to its

Answer 27

Hydrogen bonding

Question 28

Lipids being nonpolar are classified as

Answer 28

Hydrophobic

Question 29

Water molecules in a glass of water are held together by what type of bond?

Answer 29

Hydrogen Bonds