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Biology 189 > Exam 1 Chapters 1, 2, & 3 > Flashcards

Exam 1 Chapters 1, 2, & 3 Flashcards

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1
Q

Kingdom Protists

A

Mostly unicellular eukaryotes, aquatic environments, ingest, make, & absorb their nutrients

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2
Q

Nonpolar Covalent Bond

A

Atoms share equal electronegativity no partial charges

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3
Q

Polar Covalent Bond

A

Atoms share different electronegativity & has partial charges

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4
Q

What happens to an ion who loses electrons?

A

The charged ion becomes positive

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5
Q

What happens when an ion gains an electron?

A

The charged ion becomes negative

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6
Q

Organs

A

Body part that carries out a particular function and made up of multiple tissue types

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7
Q

Organ systems

A

Team of organs that cooperate for 1 function

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8
Q

Organisms

A

Living things

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9
Q

Population

A

All the individuals of a species living in a specific area

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10
Q

Community

A

Set of populations in the area

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11
Q

Biosphere

A

The sum of all the planet’s ecosystems

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12
Q

Domain Eukarya

A

Eukaryotic and has 4 kingdoms

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13
Q

Surface Tension

A

Measure of how hard it is to break the surface of a liquid

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14
Q

How to find mass number?

A

of protons + # of neutrons

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15
Q

How to find atomic number

A

Number of protons

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16
Q

Electrically neutral atoms: protons & electrons

A

of protons = # of electrons

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17
Q

Solute

A

The substance that is dissolved
ex: salt in saltwater

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18
Q

Solvent

A

The dissolving agent
ex: water

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19
Q

Expansion upon freezing

A

Heat expands the solution
Cold shrinks the solution

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20
Q

Evaporative Cooling

A

As fast molecules escape the remaining molecules have lower temperature
ex: sweating

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21
Q

Heat of Vaporization

A

Amount of heat needed to convert 1g of liquid to gas

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22
Q

Cohesion

A

Hydrogen bonds hold water molecules together

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23
Q

Adhesion

A

Attraction between different substances

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24
Q

Hydrogen bonds

A

Chemical bond that forms when a partially + hydrogen atom of a polar bond in 1 atom is attracted to a partially - atom of a polar bond

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25
Q

Ionic bonds

A

A chemical bond resulting from the attraction between oppositely charged ions

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26
Q

Evaporation

A

When liquid turns to vapor

27
Q

Main elements of life

A

Sulfur
Phosphorus
Oxygen
Nitrogen
Carbon
Hydrogen

28
Q

Hypothesis

A

Usually written as a statement
ex: smoking causes cancer

29
Q

Prediction

A

What you predict will happen in your experiment
“if…, then”

30
Q

Experiment

A

Perform your test & collect data

31
Q

Correlation vs causation

A

i think x causes y so..

32
Q

Neutrons

A

electronically neutral

33
Q

Electrons

A

negatively charged unit

34
Q

Protons

A

Positively charged unit

35
Q

Covalent Bonds

A

Sharing of a pair of valence electrons by 2 atoms

36
Q

Chemical bonds

A

an attraction between 2 atoms sharing of electrons and presence of opposite charged ions

37
Q

Dependent variable

A

variable whose value is measured during an experiment reveals change caused by independent
ex: the flashlight

38
Q

Control Group

A

A set of subjects given a placebo instead of the specific factor being tested

39
Q

Experimental Group

A

A set of subjects given the specific factor being tested

40
Q

Order of Cellular Organization

A

Cells—> Tissue—>Organ—>Organism

41
Q

Atoms

A

smallest unit of matter

42
Q

Prokaryotic

A

small, simple cell with no nucleus

43
Q

What are the 3 domains?

A

Bacteria
Archaea
Eukarya

44
Q

Kingdom Animalia

A

Multicellular eukaryotes, ingest other organisms for food

45
Q

Ions

A

Atom fnat had unequal # of protons and electrons. lost/gain electrons and it is now charged

46
Q

Isotopes

A

Atomic form of an element with same # of protons but different # of neutrons

47
Q

Characteristics of life

A

Cellular organization
Response to the environment
Growth & Development
Homeostasis
Energy Processing
Evolutionary Adaptation

48
Q

Hierarchy of life (in order)

A

Atoms
Molecules
Cells
Tissue
Organ/ organ system
Organisms
Population
Communities
Ecosystem
Biosphere

49
Q

Molecules

A

2 or more atoms held together by a covalent bond

50
Q

Cell

A

fundamental unit of life can be unicellular or multicellular

51
Q

Tissue

A

Group of cells working together to perform a specialized function

52
Q

Ecosystem

A

All the living and nonliving things in a particular area

53
Q

Domain Bacteria

A

Prokaryotes, unicellular, very diverse

54
Q

Domain Archaea

A

Prokaryotes, unicellular, first found in extreme environments

55
Q

4 emergent properties

A
  1. Cohesion
  2. Moderation of Temperature
  3. Expansion upon freezing
  4. Solvent
56
Q

Classifications of Biology (in order)

A

1.Domain
2.Kingdom
3. Phylum
4.Class
5.Order
6.Family
7.Genus
8. Species

57
Q

Eukaryotic

A

large, more complex cell WITH a nucleus

58
Q

Kingdom Plantea

A

Multicellular eukaryotes, photosynthesis (make their own food)

59
Q

Kingdom Fungi

A

Multicellular or unicellular eukaryotes. Absorb their nutrients from their environment

60
Q

How to find the # of neutrons?

A

Mass # - atomic #

61
Q

Conclusion

A

Did it or did it not support the hypothesis?

62
Q

Analyze

A

Analyze the results, what happened?

63
Q

Independent variable

A

variable that is changed during an experiment
“if…then” the independent is the if
ex: changing the batteries

Biology 189 (4 decks)

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