Unit 1

Question 1

Three domains?

Answer 1

Eukarya, Bacteria, and Archaea

Question 2

Four Kingdoms within Eukarya?

Answer 2

Animalia, Plantae, Fungi, and Protista

Question 3

Most diverse prokaryotes?

Answer 3

Bacteria

Question 4

Live in extreme environments?

Answer 4

Archaea

Question 5

What can populations of organisms do?

Answer 5

Adapt to evolution

Question 6

What is cell identity?

Answer 6

All the proteins that are produced in the cell

Question 7

Why are signal transduction pathways important?

Answer 7

This is how cells communicate messages that coordinate GENE EXPRESSION

Question 8

Where does transcription occur?

Answer 8

Nucleus

Question 9

Describe the process of translation

Answer 9

The ribosome matches the base sequence of the mRNA sets of 3 bases to the tRNA molecules (anticodon) as it moves along the mRNA molecule

Question 10

What makes up DNA?

Answer 10

Sugar, Nitrogenous base, and Phosphate group

Question 11

What is fuel (food) made of?

Answer 11

Energy and atoms

Question 12

What is a peptide bond made of?

Answer 12

Carbon and Nitrogen

Question 13

Hadean eon?

Answer 13

4.6-3.6 bya

Question 14

Archean eon?

Answer 14

3.6-2.5 bya

Question 15

Proterozoic eon?

Answer 15

2.5-.5 bya

Question 16

Pharenzoic eon?

Answer 16

.5-present

Question 17

Mass extinction that killed dinosaurs?

Answer 17

65.5 million years ago

Question 18

Permian mass extinction

Answer 18

251 million years ago

Question 19

First animals?

Answer 19

542 million years ago

Question 20

Big events during Archaean eon? (2 of them)

Answer 20

First evidence of life-prokaryotes and first evidence of lots of oxygen in atmosphere

Question 21

Big events during Proterozoic eon? (3 of them)

Answer 21

First evidence of complex cells (eukaryotes), multicellular organisms, and first animals

Question 22

Big events during the Pharenzoic eon? (3 of them)

Answer 22

Invasion of land, mass extinctions, and diversification of mammals

Question 23

cells cluster temporarily

Answer 23

aggregates

Question 24

allow for increased SA

Answer 24

fimbrae

Question 25

cells cluster permanently

Answer 25

colonies

Question 26

staphylo=

Answer 26

cluster

Question 27

strepto=

Answer 27

chain

Question 28

allow proks. to survive under tough conditions

Answer 28

endospores

Question 29

thick layer of peptidoglycan

Answer 29

gram-positive

Question 30

photosynthetic bacteria

Answer 30

cyanobacteria

Question 31

what organelles help prok bacteria with photosynthesis

Answer 31

thylakoid membranes

Question 32

energy from sunlight, carbon from CO2

Answer 32

Photoautotrophs

Question 33

energy from chemicals (eating), carbon from CO2

Answer 33

Chemoautotrophs

Question 34

energy from chemicals, organic coumpounds for CO2

Answer 34

Chemoheterotrophs

Question 35

energy from sunlight, organic compounds for CO2

Answer 35

Photoheterotrophs

Question 36

what is special about bacterial flagellum

Answer 36

no microtubules

Question 37

what is the cell membrane of arcahae made of?

Answer 37

lipids

Question 38

what are three ways in which archaea and eukaryotes are similar?

Answer 38

similar rRNA sequences, complex RNA polymerase, and no peptidoglycan in cell walls

Question 39

what does the capsule do?

Answer 39

allow the prok. to stick to something