Exam 1 Chapters 1, 2, & 3

Question 1

Kingdom Protists

Answer 1

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

Question 2

Nonpolar Covalent Bond

Answer 2

Atoms share equal electronegativity no partial charges

Question 3

Polar Covalent Bond

Answer 3

Atoms share different electronegativity & has partial charges

Question 4

What happens to an ion who loses electrons?

Answer 4

The charged ion becomes positive

Question 5

What happens when an ion gains an electron?

Answer 5

The charged ion becomes negative

Question 6

Organs

Answer 6

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

Question 7

Organ systems

Answer 7

Team of organs that cooperate for 1 function

Question 8

Organisms

Answer 8

Living things

Question 9

Population

Answer 9

All the individuals of a species living in a specific area

Question 10

Community

Answer 10

Set of populations in the area

Question 11

Biosphere

Answer 11

The sum of all the planet’s ecosystems

Question 12

Domain Eukarya

Answer 12

Eukaryotic and has 4 kingdoms

Question 13

Surface Tension

Answer 13

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

Question 14

How to find mass number?

Answer 14

of protons + # of neutrons

Question 15

How to find atomic number

Answer 15

Number of protons

Question 16

Electrically neutral atoms: protons & electrons

Answer 16

of protons = # of electrons

Question 17

Solute

Answer 17

The substance that is dissolved
ex: salt in saltwater

Question 18

Solvent

Answer 18

The dissolving agent
ex: water

Question 19

Expansion upon freezing

Answer 19

Heat expands the solution
Cold shrinks the solution

Question 20

Evaporative Cooling

Answer 20

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

Question 21

Heat of Vaporization

Answer 21

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

Question 22

Cohesion

Answer 22

Hydrogen bonds hold water molecules together

Question 23

Adhesion

Answer 23

Attraction between different substances

Question 24

Hydrogen bonds

Answer 24

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

Question 25

Ionic bonds

Answer 25

A chemical bond resulting from the attraction between oppositely charged ions

Question 26

Evaporation

Answer 26

When liquid turns to vapor

Question 27

Main elements of life

Answer 27

Sulfur Phosphorus Oxygen Nitrogen Carbon Hydrogen

Question 28

Hypothesis

Answer 28

Usually written as a statement ex: smoking causes cancer

Question 29

Prediction

Answer 29

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

Question 30

Experiment

Answer 30

Perform your test & collect data

Question 31

Correlation vs causation

Answer 31

i think x causes y so..

Question 32

Neutrons

Answer 32

electronically neutral

Question 33

Electrons

Answer 33

negatively charged unit

Question 34

Protons

Answer 34

Positively charged unit

Question 35

Covalent Bonds

Answer 35

Sharing of a pair of valence electrons by 2 atoms

Question 36

Chemical bonds

Answer 36

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

Question 37

Dependent variable

Answer 37

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

Question 38

Control Group

Answer 38

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

Question 39

Experimental Group

Answer 39

A set of subjects given the specific factor being tested

Question 40

Order of Cellular Organization

Answer 40

Cells—> Tissue—>Organ—>Organism

Question 41

Atoms

Answer 41

smallest unit of matter

Question 42

Prokaryotic

Answer 42

small, simple cell with no nucleus

Question 43

What are the 3 domains?

Answer 43

Bacteria Archaea Eukarya

Question 44

Kingdom Animalia

Answer 44

Multicellular eukaryotes, ingest other organisms for food

Question 45

Ions

Answer 45

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

Question 46

Isotopes

Answer 46

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

Question 47

Characteristics of life

Answer 47

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

Question 48

Hierarchy of life (in order)

Answer 48

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

Question 49

Molecules

Answer 49

2 or more atoms held together by a covalent bond

Question 50

Cell

Answer 50

fundamental unit of life can be unicellular or multicellular

Question 51

Tissue

Answer 51

Group of cells working together to perform a specialized function

Question 52

Ecosystem

Answer 52

All the living and nonliving things in a particular area

Question 53

Domain Bacteria

Answer 53

Prokaryotes, unicellular, very diverse

Question 54

Domain Archaea

Answer 54

Prokaryotes, unicellular, first found in extreme environments

Question 55

4 emergent properties

Answer 55

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

Question 56

Classifications of Biology (in order)

Answer 56

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

Question 57

Eukaryotic

Answer 57

large, more complex cell WITH a nucleus

Question 58

Kingdom Plantea

Answer 58

Multicellular eukaryotes, photosynthesis (make their own food)

Question 59

Kingdom Fungi

Answer 59

Multicellular or unicellular eukaryotes. Absorb their nutrients from their environment

Question 60

How to find the # of neutrons?

Answer 60

Mass # - atomic #

Question 61

Conclusion

Answer 61

Did it or did it not support the hypothesis?

Question 62

Analyze

Answer 62

Analyze the results, what happened?

Question 63

Independent variable

Answer 63

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