Biology 1-2

Question 1

Define Biology

Answer 1

Study of living organisms

Question 2

What characteristics do all living things share

Answer 2

1 Cellular Organization,
2 Reproduction,
3 Growth,
4 Adaptation,
5 Homeostasis

Question 3

Classification of living things
( 5 kingdoms )

Answer 3

Animals
Plant
Fungi
Protist

Question 4

Organization of life ( Starts with Atoms )

Answer 4

Atom
Molecule
Cell
Tissue
Organ
Organ System
Organism
Population
Community
Ecosystem
Biosphere

Question 5

Producers ( Autotrophs )

Answer 5

Capture energy and produce food by photosynthesis

Question 6

Consumers ( Heterotrophs )

Answer 6

Need food provided for them to survive (us)

Question 7

Decomposers

Answer 7

Energy from dead

Question 8

Photosynthesis

Answer 8

Food from sun

Question 9

Homeostasis

Answer 9

Stable body heat even when the weather is different

Question 10

first ancestral cells

Answer 10

Prokaryotic cells ( Bacteria and Archea )

Question 11

Eukeryotic cells

Answer 11

Protists ( Close to us )
Plants
Fungi
Animals

Question 12

9 Classification categories
Least to Most

Answer 12

Species
Genus
Family
Order
class
phylum
kingdom
supergroup
domain

Question 13

Autotrophs Use/Need

Answer 13

Photosynthesis
Chemeostasis

Question 14

Matter

Answer 14

Anything that takes up space
(solid,liquid,gas)

Question 15

identify the most important elements in living organisms

Answer 15

C, H, N, O, Phosphorus, Sulfur

Question 16

Structure of Atoms

Answer 16

Extremely small, positively charged neucleus, surrounded by negative electrons

Question 17

Subatomic Particles

Answer 17

Proton
Neutron
Electron

Question 18

Proton ( +,-, 0 ? )

Answer 18

+ in nucleus

Question 19

Neutron ( +,-,0?)

Answer 19

0 in neucleus of Atoms

Question 20

Electron (+,-,0?)

Answer 20

• orbits the nucleus of Atoms

Question 21

How does the arragnment of electrons determine an elements reactivity ( Chem Reaction )

Answer 21

Atoms with incomplete Valance shells are typically more reactive

Question 22

Stable Isotopes

Answer 22

Stable isotopes are non-radioactive forms of atoms

Question 23

Radioisotopes

Answer 23

Unstable forms of an element

Question 24

Atoms v Molecules v Compounds

Answer 24

Molecules = 2 or more atoms of the same type connected

Compound = 2 or more atoms from different elements and join together

Atom = Smallest unit of matter, with all properties of its element

Question 25

Ionic Chemical Bonds

Answer 25

Link between 2 atoms caused by electrostatic force between oppositily charged ions ( High Polarity ) ( Attract Opposite )

Question 26

Covalent

Answer 26

Link between 2 atoms or ions where electron pairs are shared between them ( Low Polarity ) ( Share electrons to complete outer shell )

Question 27

Hydrogen bonds

Answer 27

A weak bond between two molecules resulting in an attraction from one proton, one molecule and one atom

Question 28

factors that affect the rate of chemical reactions

Answer 28

Concentration of the reactants Temperature Physical state of reactants Prescence of a catalyst light

Question 29

Why are the properties of water important to life

Answer 29

Thermal Properties Ability to be universal solvent Cohesion and Adhesion

Question 30

Importance of the Hydrogen bonds to water

Answer 30

Because of Hydrogen Bonds water can support objects more dense than it

Question 31

Acid

Answer 31

Make Hydrogen Ions ( 0-6 )

Question 32

Bases

Answer 32

Take Hydrogen Ions ( 8-14 )

Question 33

pH scale acid basic neutral

Answer 33

acid = -7 basic = +7 basic = 0

Question 34

Purpose of the buffer

Answer 34

Solution resistant to pH change Neutralize small amount of added acid or base to maintain the pH of the solution relatively stable

Question 35

Water disasociates into an ______ number of Hydrogen Ions

Answer 35

Equal Number of Hydrogen ions

Question 36

Phospholipids look like

Answer 36

Two legs

Question 37

Triglycerides look like

Answer 37

3 legs

Question 38

Where does the body store Cholesteral

Answer 38

The liver

Question 39

Soluble Fiber

Answer 39

Lower blood sugar Full longer

Question 40

Insoluble Fiber

Answer 40

Colon Health Prevents constipation

Question 41

Starch is made of

Answer 41

Polysaccharides which have many glucose bonded together

Question 42

What part of us has the highest ATP requirements

Answer 42

Our brain and muscles

Question 43

C6H12O6+O2

Answer 43

Mitochondrion

Question 44

CO2+H20+ATP

Answer 44

Muscle cell

Question 45

Cellular respiration

Answer 45

Converts energy in food into the energy stored in ATP