Mrs. Keonen's Chemistry Of Life Flashcards Biology 8 Hour 1

Front 1

The nucleus of an atom is made up of ______ and ______.

Back 1

Protons and neutrons

Front 2

Negatively charged particles in atoms

Back 2

Electrons

Front 3

Positively charged particles in an atom

Back 3

Proton

Front 4

Neutrally charged particles in an atom

Back 4

Neutron

Front 5

In a(n) ______ bond, electrons are transferred from one atom to another.

Back 5

Ionic

Front 6

In a(n) ________ bond, electrons are shared between atoms.

Back 6

Covalent

Front 7

How does an atom become an ion?

Back 7

Gaining or losing electrons

Front 8

Molecules are made up of _____.

Back 8

Atoms

Front 9

Unequal sharing of electrons

Back 9

Polarity

Front 10

Acidic or basic? pH of 1.5

Back 10

Acidic

Front 11

Acidic or basic? pH of 11.5

Back 11

Basic

Front 12

Alkaline is another term to describe ____ solutions.

Back 12

basic

Front 13

The attraction of molecules in the same substance

Back 13

Cohesion

Front 14

The attraction of molecules of different substances

Back 14

Adhesion

Front 15

What is a buffer?

Back 15

A weak acid or base that reacts with stronger acids r bases to prevent sharp, sudden changes in pH, thus helping maintain homeostasis.

Front 16

The main source of energy for living things

Back 16

Carbohydrate

Front 17

Help carry out chemical reactions

Back 17

Proteins

Front 18

Important parts of biological membranes

Back 18

Lipids

Front 19

Contain hydrogen, oxygen, nitrogen, phosphorus, and carbon

Back 19

Nucleic acids

Front 20

Transport substances in and out of cells

Back 20

Proteins

Front 21

Made of amino acids

Back 21

Proteins

Front 22

What type of world is it?

Back 22

Amino world "A mean-o-world"

Front 23

Sugar and starches are examples of ______.

Back 23

Carbohydrates

Front 24

Store and transmit hereditary information

Back 24

Nucleic acids

Front 25

You wearing ____, you eat _____, you ARE _______.

Back 25

Proteins

Front 26

During chemical reactions, chemical bonds are _____ or _____.

Back 26

Formed or broken

Front 27

The reactants of an enzyme-catalyzed reaction are known as ______.

Back 27

Substrates

Front 28

What is an enzyme?

Back 28

A proteins that acts as a biological catalyst to speed up chemical reactions that take place in cells.

Front 29

A pure substance that consists entirely of on type of atom is called a(n) ______.

Back 29

Element

Front 30

What is a polymer?

Back 30

A large compound formed by the jointing of small compounds, called monomers.