Biology-Angie

Front 1

Atoms

Back 1

*protron and nuetrons in the nucleus.
*neutrons have most mass or weight
*protron +, neutrons are neutral
*electrons, circle the atom and have a negative charge. circle because of the attraction.

Front 2

Aqueous solution

Back 2

*when water is the solvent, the resulting solution called aqueous solution.

Front 3

Base

Back 3

*a compound that accepts H= and removes it from solution.
*some bases like sodium hydroxide (naoH) do this by releasing oh- combines with H= to form H2O

Front 4

Acid

Back 4

*chemical compound that releases H= to a solution

Front 5

3 ways elements are defined?

Back 5

*defined by properties
*atomic #
*atomic weight

Front 6

Atom

Back 6

*must use a microscope to see
*put on a periodic table
*elements are gas, liquid or solid.
*smallest unit, everyone is made of atoms.

Front 7

2 kinds of cells?

Back 7

1. Prokaryotic- bacteria and fungei
2. Eukaryotic- plants, animals,

Front 8

Cell

Back 8

1. the basic unit of life
2. lowest level of structure that can perform all activities required for life including reproduction.
3. unicellar organisms
4. plants, animals, multi cellular organisms
5. the ability to divide, form new cells, reproduction, growth and repair.

Front 9

The significane of ice floating

Back 9

1. when h2O gets cold the molecules move apart forming ice.
2. ice has fewer molecules than an equal volume of liquid H2O
3. hydrogen bonds of ice last longer-each bonded to 4 neighbors
4. If ice sank, all oceans, poinds, and lakes would freeze solid
5. Ice insulates allowing life to persist.

Front 10

H2O as a solvent of life

Back 10

1. can dissolve sugar or salt
2. dissolving a agent, H2O is the solvent.
3. H2O can dissolve a variety of solutes necessary for life
4. H2O solvent inside cells, blood and plant sap.
5. H2O is a solvent for chemical reations.
6. h2O can dissolve ionic salts and many polar molecules like sugars.

Front 11

Cells

Back 11

1. lowest level of structure that can perform all activities for live and reproduction.

Front 12

Biology

Back 12

*the study of life

Front 13

ecosystem

Back 13

1. cycling of nutrients- minerals that plants take up from the soil and re recycled to the soil
2. flow of energy from sunlight to producers to consumers to decomposers.

Front 14

Lifes hierachy

Back 14

1. atom
2. molecule
3. cell
4. tissue
5. organ
6. organ system
7. organism
8. population
9. community
10. eco system

Front 15

ecosystems

Back 15

*consists of all organisms living in a particular area including non-living physical components that affect water, air, soil and sunlight.

Front 16

Biosphere

Back 16

*consists of all environments on earth that support life.
*soils, oceans, lakes and inner atmosphere.

Front 17

Properties and processes of life

Back 17

1. order
2. regulation
3. growth and development
4. energy utilization
5. response to the environment
6. reproduction
7. evolution

Front 18

H2O moderates temperature

Back 18

1. h2O has a stronger resistance to temperature than other substances because of hydrogen bonding.
2. heat- measure the amount of energy associated with movement of atoms and molecules in a body of matter
3. temperature- measures intensity of heat
4. earths water supply of life.

Front 19

cohesion of H2O

Back 19

1. H2O molecules stick together
2. hydrogen bonds that lasts only a few trillionths of a second then bonded to others
3. stronger cohesion for H2O than most other liquids
4. important for the living world
5. hydrogen bonds give water unusal furgace tension. (invisible film)