Cell Biology Exam Chapters 1 & 2

Question 1

True or false: biology is the study of life and tries to understand life and how we fit in.

Answer 1

True

Question 2

The current rate of extinction is 2000 times more than normal. True or false

Answer 2

False the current rate of extinction is 1000 times more than normal

Question 3

The fundamental building block of all living and non-living things

Answer 3

Atom

Question 4

Molecule

Answer 4

Group of atoms bonded together

Question 5

The smallest unit of life is a…..

Answer 5

Cell

Question 6

Organism

Answer 6

Made of one or more cells

Question 7

A group of the same species in the same area is a….

Answer 7

Population

Question 8

A COMMUNITY is….

Answer 8

Multiple populations in the same area

Question 9

An ECOSYSTEM is….

Answer 9

Community plus environment

Question 10

A BIOSPHERE is….

Answer 10

All regions of earth in which life exists

Question 11

Nutrient

Answer 11

Substance an organism needs but can’t make for itself(food, water, air)

Question 12

Producers can make their own food and are also called what?

Answer 12

Autotroph

Question 13

A heterotroph is what?

Answer 13

An organism that cannot make their own food or consumer

Question 14

Biodiversity is….

Answer 14

Variation in life

Question 15

No nucleus……=

Answer 15

Pro

Question 16

Having a nucleus….=

Answer 16

Euk

Question 17

Fungi

Answer 17

Secrete substances to break down food externally

Question 18

Protists

Answer 18

Simplest Eukaryotes, much variations

Question 19

Bacteria and archaea

Answer 19

Both are single celled prokaryotes= no nucleus

Question 20

Plants(eukaryote)

Answer 20

Multicelled photosynthetic producers

Question 21

Animals(eukaryote)

Answer 21

Multicellular consumers that ingest other organisms

Question 22

A system of naming and classifying species

Answer 22

Taxonomy

Question 23

Carolus Linnaeus

Answer 23

The person that started the two part system of genus and species

Question 24

Members of each Taxon(rank or group) share a unique set of traits

Answer 24

Domain, kingdom, phylum, class, order, family, genus, species

• Eukarya, Animalia, Chordata, Mammalia, Carnivora, Canidae, Canis, C. lupis (C. l. familiaris)

Question 25

The Scientific Method

Answer 25

Make an observation; form a hypothesis; test the hypothesis; make a prediction based on the hypothesis; test the prediction(variables, experimental group vs. control group); Analyze the results(data-experimental results); form a conclusion; report results; repeat....

Question 26

How does sample size affect test results?

Answer 26

Bigger sample sizes equal better and more accurate results

Question 27

hypothesis that has stood up to years and years of testing, consistent with all data gathered, helped make successful predictions about other phenomena ⭕️explanation of why something happens

Answer 27

Scientific Theory

Question 28

describes a phenomenon that has been observed to occur in every circumstance without fail, but for which we do not have a complete scientific explanation ⭕️tells how something happens

Answer 28

Law of Nature

Question 29

All substances consist of....

Answer 29

Atoms

Question 30

The fundamental building block particle of matter.

Answer 30

Atom

Question 31

Atoms consists of_______moving around a nucleus of_________ and _________

Answer 31

Electrons Protons Neutrons

Question 32

Negatively subatomic particle that occupies orbitals around the atomic nucleus.

Answer 32

Electron

Question 33

Charge

Answer 33

Electrical property of some subatomic particles

Question 34

Opposite charges_________ and like charges_________

Answer 34

Attract | Repel

Question 35

Core of an atom, occupied by protons and neutrons

Answer 35

Nucleus

Question 36

Proton

Answer 36

Positively charged subatomic particle found in the nucleus of all atoms

Question 37

Uncharged or neutral subatomic particle found in the atomic nucleus

Answer 37

Neutron

Question 38

Atoms differ in numbers of________________________[2 words]

Answer 38

Subatomic particles

Question 39

Element

Answer 39

A pure substance that consists only of atoms with the same number of protons

Question 40

Atomic number

Answer 40

Number of protons in the atomic nucleus. | Determines the element