Chapter2.1-Peering at Plant Cells OO

Question 1

An organism is made up of

Answer 1

Organ Systems

Question 2

Organ Systems are made up of

Answer 2

Organs

Question 3

Organs are made up of

Answer 3

Tissue

Question 4

Tissue is made up of

Answer 4

Cells

Question 5

Cells are made up of

Answer 5

Organelles

Question 6

Organelles are made up of

Answer 6

Molecules

Question 7

Molecules are made up of

Answer 7

Atoms

Question 8

Atoms are made up of

Answer 8

Quarks

Question 9

What is the order of life from smallest on up?

Answer 9

Quark, Atom, Molecules,Organelles, Cells, Tissue, Organs, Organ System, Organism.

Question 10

Pure substances made up of all the same kind of small particles, called atoms.

Answer 10

Elements

Question 11

The smallest pieces of an element that have the characteristics of the element

Answer 11

Atoms

Question 12

All the elements that have been identified so far are organized into a table called…

Answer 12

The Periodic Table of the Elements

Question 13

Each row of the table is called a

Answer 13

Period

Question 14

Elements become heavier as you move across the tableÄ

Answer 14

Horizontally

Question 15

Each column on the table is called aÄ

Answer 15

family or group

Question 16

Elements become larger as you move… within each column.

Answer 16

From top to bottom

Question 17

Each element is… because of the structure of its atoms.

Answer 17

Different from the other elements

Question 18

Protons and neutrons make up the core of an atom, calledÄ

Answer 18

the atomic nucleus

Question 19

Both of these particles have mass and contribute to the weight and size of the atom

Answer 19

Protons and neutrons

Question 20

Both of these particles have mass and contribute to the weight and size of the atom

Answer 20

Protons and neutrons

Question 21

These are mass-less negatively charged particles that form a cloud around the atomic nucleus

Answer 21

Electrons

Question 22

The number of protons in an atom

Answer 22

The Atomic Number

Question 23

determines the type of element

Answer 23

The Atomic Number

Question 24

the number of… in an element are always the same

Answer 24

Protons

Question 25

the numbers of... In an element may change.

Answer 25

neutrons or electrons

Question 26

When an atom gains or loses electrons, it becomes an

Answer 26

Ion

Question 27

In an atom of an element, the number of ,,, is equal to the number of ƒ and The opposite electrical charges cancel out each other,

Answer 27

positively charged protons/negatively charged electrons.

Question 28

Considering the equal number of protons and electrons and element is fair to say that an element hasƒ

Answer 28

no net charge

Question 29

If an atom gives up electrons to another atom, then the atom will have a net positive charge, becoming a positively chargedƒ

Answer 29

ion

Question 30

if an atom gains electrons from another atom, it becomes aƒ

Answer 30

Negatively charged ion.

Question 31

Atoms with the same number of protons, but different numbers of neutrons, are... of each other

Answer 31

Isotopes

Question 32

The total number of protons and neutrons in an atom is calledÉ

Answer 32

The mass number

Question 33

Atoms join together to form...chemical structures made of two or more atoms.

Answer 33

Molecules

Question 34

The way an atom interacts with other atoms depends upon the number..

Answer 34

of electrons it has

Question 35

The attractions that join atoms together to form molecules are called

Answer 35

Chemical Bonds

Question 36

Four types of chemical bonds are particularly important in plant cells

Answer 36

Ionic, Covalent, Polar Covalent, Hydrogen

Question 37

electrical attractions between oppositely charged ions

Answer 37

Ionic bonds

Question 38

form when atoms share electrons

Answer 38

Covalent bond

Question 39

the strongest bonds in plant cells, creating the backbones of the molecules that form the cell.

Answer 39

Covalent bond

Question 40

The kind of bond that is strongest in watery environments

Answer 40

Ionic bonds

Question 41

covalent bonds, forming when atoms share electrons unequally

Answer 41

Polar covalent bonds

Question 42

weak electrical attractions between polar groups.

Answer 42

Hydrogen bonds

Question 43

These kinds of bonds create polar molecules that haveÉ

Answer 43

slight electrical charges

Question 44

In this type of bond you can think of these molecules like theyÕre electrically sticky Ñ positive sides of one molecule are attracted to the negative sides of other molecules

Answer 44

Hydrogen bonds