Quiz 2 <3

Question 1

what is a cell cycle?

Answer 1

a series of events that allows the cell to enter cell division

Question 2

WHICH PHASE: nuclear envelope breaks down

Answer 2

prophase

Question 3

WHICH PHASE: spindle fibers emerge from centrosomes

Answer 3

prophase

Question 4

WHICH PHASE: nucleolus disappears (BYE)

Answer 4

prophase

Question 5

WHICH PHASE: what is the first change phase?

Answer 5

prometaphase

Question 6

WHICH PHASE: chromosomes continue to condense

Answer 6

prometaphase

Question 7

WHICH PHASE: the mitotic spindles continues to form

Answer 7

prometaphase

Question 8

WHICH PHASE: first main major change phase?

Answer 8

metaphase

Question 9

WHICH PHASE: aligned on the equator/_____ plate

Answer 9

metaphase

Question 10

WHICH PHASE: spindle fibers are formed and the chromatids are at their most condensed form

Answer 10

metaphase

Question 11

WHICH PHASE: divides cell into 2 and enters upward phase

Answer 11

metaphase

Question 12

WHICH PHASE: known as “upwards” phase

Answer 12

anaphase

Question 13

WHICH PHASE: sister chromatids start moving towards the opposite poles

Answer 13

anaphase

Question 14

WHICH PHASE: cell starts to become elongated

Answer 14

anaphase

Question 15

WHICH PHASE: distance phase

Answer 15

telophase

Question 16

WHICH PHASE: chromosomes have reached their opposite phases and chromatin starts to relax

Answer 16

telophase

Question 17

WHICH PHASE: mitotic spindles become UNEMPLOYED

Answer 17

telophase!

Question 18

WHICH PHASE: spindles depolymerize

Answer 18

telophase

Question 19

WHICH PHASE: forms cleavage furrow

Answer 19

cytokinesis

Question 20

WHICH PHASE: splits cell in two (animal cell only)

Answer 20

cytokinesis

Question 21

WHICH PHASE: kinetochores appear at the centromeres

Answer 21

prometaphase

Question 22

WHICH PHASE: cell plate separates the daughter cell (plant cell only)

Answer 22

cytokinesis

Question 23

WHICH PHASE: each sister chromatid is attached to a spindle fiber originating from opposite poles

Answer 23

metaphase

Question 24

where do kinetochores sit?

Answer 24

on top of centromere

Question 25

What's the order of the cell cycle?

Answer 25

PPMAT

Question 26

what is PPMAT?

Answer 26

Prophase, Prometaphase, Metaphase, Anaphase, Telophase

Question 27

where are chromosomes duplicated?

Answer 27

s phase

Question 28

what regulates the cell cycle?

Answer 28

cytokines and CDK

Question 29

what does the g1 checkpoint do?

Answer 29

checks for pre-existing DNA to go through the dna synthesis and checks for growth

Question 30

what does the m checkpoint check?

Answer 30

checks to see if the spindle fibers have their integrity intact

Question 31

what does g2 check for?

Answer 31

literally everything

Question 32

if the cell does not receive the go-ahead signal, where does it go?

Answer 32

g0 phase

Question 33

where did eukaryotes come from?

Answer 33

prokaryotes

Question 34

prokaryotes are characterized by what?

Answer 34

nucleoid, no lysosomes,

Question 35

what are histones responsible for?

Answer 35

first level of packing in chromatin

Question 36

what is chromatin made of?

Answer 36

eight histone proteins and dna coiled around it?

Question 37

what is loosely packed chromatin called?

Answer 37

euchromatin

Question 38

EUCHROMATIN OR HETEROCHROMATIN: transcriptionally inactive

Answer 38

heterochromatin

Question 39

EUCHROMATIN OR HETEROCHROMATIN: actively present in prokaryotic and eukaryotic genomes

Answer 39

euchromatin

Question 40

EUCHROMATIN OR HETEROCHROMATIN: dna is loosely packed

Answer 40

euchromatin

Question 41

EUCHROMATIN OR HETEROCHROMATIN: dna is highly packed

Answer 41

heterochromatin

Question 42

EUCHROMATIN OR HETEROCHROMATIN: transcriptionally active

Answer 42

euchromatin

Question 43

are histones dna??

Answer 43

no!!!!!!!!!!!!!!! they are proteins...

Question 44

proteins are _______, lipids are _________

Answer 44

monomers, fake polymers

Question 45

what do ribosomes look like?

Answer 45

little dots

Question 46

does the rough ER have ribosomes?

Answer 46

no!!!!!!!!!!

Question 47

which type of cell has central vacuoles?

Answer 47

plant cells