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Biology 101 flashcards
1
Q

Every living thing has

A

-cells
-able to reproduce
-able to evolve
-able to process information
-able to growth
-uses energy
-responding to stimulus
-homeostasis

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2
Q

main theories

A

-cell theory
-theory of evolution
-chromosome theory.

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3
Q

Difference between hypothesis and theory

A

A theory is supported by evidence.

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4
Q

1660, Robert Hook and Anton Van Lecuwenloock.

A

first cell
observers

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5
Q

cell

A

highly organized compartment

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6
Q

cell theory

A

-all cells come from preexisting cells.
-all organisms are made of cells.

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7
Q

Louis Pasteur’s hypothesis

A

proved that cells come from preexisting cells.

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8
Q

who researched evolution first?

A

Alfred Russel Walace

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9
Q

Evolution meaning

A

Idea of change over time

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10
Q

Population

A

Group of the same individuals

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11
Q

Fitness

A

ability to reproduce.

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12
Q

Adaptation

A

A trait that increases fitness.

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13
Q

Tree of life

A

every species comes from preexisting species.

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14
Q

chromosomes

A

super condenced DNA

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15
Q

1902, Walter Sutton and Theodor Bover

A

first ones that thought of DNA

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16
Q

1950

A

We discovered that chromosomes are molecules of deoxyribose nucleic acid

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17
Q

James watson and Francis Crick

A

proposed the double helix

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18
Q

DNA cicle

A

Replication, Transcription, translation

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19
Q

The more energy you produce

A

The bigger you are

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20
Q

Replication

A

New cell

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21
Q

Transcription

A

RNA

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22
Q

Translation

A

Protein

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23
Q

Phylogeny

A

genealogical relationship between all organisms

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24
Q

3 main groups

A

Bacteria, Archaea, Eukaryota

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25
Q

eukaryote kingdoms

A

Animal kingdom, Plant, Fungus, Protista

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26
Q

Taxonomy

A

effort to name and classify all organisms

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27
Q

In 1735 Carl Linnaeus

A

estabilished taxonomy

28
Q

4 main atoms

A

Hydrogen, Oxygen, Nitrogen, Carbon

29
Q

Protons can’t…

A

Never change

30
Q

Protons,Neutrons are…

A

+,-

31
Q

Orbitals bond…

A

when there’s only one

32
Q

K^-

A

gained

33
Q

K^+

A

lossed

34
Q

Atomic number

A

number of protons and neutrons

35
Q

Atomic weight

A

Number of protons + electrons: dalton

36
Q

an unpaired valence electrons is called

A

the valance of an atom

37
Q

Isotopes

A

elements with different numbers of neutrons

38
Q

Covalent

A

sharing electrons

39
Q

Molecule

A

substance held together by covalent electrons

40
Q

Compounds

A

Molecules in which atoms of different elements are held together

41
Q

What does the electro thing tells about atoms

A

how strong the element is

42
Q

Partial negative charge(S^-), Partial positive charge(S^+)

A

polar bonds

43
Q

Non polar

A

sharing equally

44
Q

Polar

A

sharing unevenly (.6-1.4)

45
Q

Ionic

A

stealing( 1.5 or more)

46
Q

Cation

A

losses an electron, positive charge

47
Q

Anion

A

gains an electron, negative charge

48
Q

Solvent

A

dissolver

49
Q

solute

A

anything dissolved in a solvent

50
Q

weak electrical attractions are called…

A

hydrogen bonds

51
Q

Hydrophilic

A

love water(atoms and molecules)

52
Q

hydrophobic

A

water hater(non polar compounds)

53
Q

Water structure

A

small, polar

54
Q

cohesion

A

surface tension

55
Q

adhesion

A

water binds to plastic or glass

56
Q

ice

A

less dense than water

57
Q

Acids

A

substance that gives up protons

58
Q

Bases

A

substances that acquire protons during chemical reactions

59
Q

What does Ph measures?

A

measures how much H3O+ there is in a liquid

60
Q

Hydronium

A

HgO+

61
Q

Hydroxide

A

-OH

62
Q

H+

A

concentration of hydronium

63
Q

More H+

A

acid

64
Q

Less H+

A

bases

65
Q

7

A

neutral

66
Q

Ph=

A

-log(7x10^(-9))=PH

Bio cards nigga (5 decks)

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