Chapter 6-The Chemistry Of Life

Question 0

Atom

Answer 0

Smallest particle of an element that has characteristics of that element

Question 1

Acid

Answer 1

Any substance that forms hydrogen ions(H+) in water

Question 2

Base

Answer 2

Any substance that forms hydroxide(OH-) in water

Question 3

Compound

Answer 3

Substance that is composed of atoms of two or more different elements that are chemically combined

Question 4

Covalent bond

Answer 4

Chemical bond formed when 2 atoms share electrons

Question 5

Element

Answer 5

Substance that can’t be broken down into simpler chemical substances

Question 6

Ion

Answer 6

Charged particle made of atoms

Question 7

Ionic bond

Answer 7

Attractive force between 2 ions of opposite charge

Question 8

Isotope

Answer 8

Atoms of the same element that have different number of neutrons

Question 9

Metabolism

Answer 9

All of the chemical reactions that occur within an organism

Question 10

Mixture

Answer 10

Combo of substances in which the individual components retain their own properties

Question 11

Molecule

Answer 11

Group of atoms held together by covalent bonds

Question 12

Nucleus

Answer 12

Center of an atom

Question 13

pH

Answer 13

Measure of how acidic or basic a solution is

Question 14

Solution

Answer 14

Mixture in which 1 or more substances are distributed evenly in another substance

Question 15

Diffusion

Answer 15

The net movement of particles from an area of higher concentration to an area of lower concentration

Question 16

Dynamic equilibrium

Answer 16

Result of diffusion where there is continuous movement of particles but no overall change in concentration

Question 17

Hydrogen bond

Answer 17

Weak chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms

Question 18

Polar molecule

Answer 18

Molecule with an unequal distribution of charge

Question 19

Amino acid

Answer 19

Basic building blocks of proteins

Question 20

Carbohydrate

Answer 20

Biomolecule composed of carbon, hydrogen, and oxygen with a ratio of about 2 hydrogen atoms and one oxygen atom for every carbon atom

Question 21

Enzyme

Answer 21

Protein that changes the rate of a chemical reaction

Question 22

Isomer

Answer 22

Compounds that have the same chemical formula but different 3D structures

Question 23

Lipid

Answer 23

Large biomolecules that are made mostly of carbon and hydrogen with a small amount of oxygen

Question 24

Nucleic acid

Answer 24

Complex biomolecule that stores cellular info in the form of a code

Question 25

Nucleotides

Answer 25

Smaller subunits that make up nucleic acids

Question 26

Peptide bond

Answer 26

Covalent bond formed between the amino acids

Question 27

Polymer

Answer 27

Large molecule formed when many smaller molecules bond together

Question 28

Protein

Answer 28

Large, complex polymer composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur