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Cells and Heredity > Quiz 2 <3 > Flashcards

Quiz 2 <3 Flashcards

1
Q

what is a cell cycle?

A

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

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2
Q

WHICH PHASE: nuclear envelope breaks down

A

prophase

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3
Q

WHICH PHASE: spindle fibers emerge from centrosomes

A

prophase

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4
Q

WHICH PHASE: nucleolus disappears (BYE)

A

prophase

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5
Q

WHICH PHASE: what is the first change phase?

A

prometaphase

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6
Q

WHICH PHASE: chromosomes continue to condense

A

prometaphase

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7
Q

WHICH PHASE: the mitotic spindles continues to form

A

prometaphase

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8
Q

WHICH PHASE: first main major change phase?

A

metaphase

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9
Q

WHICH PHASE: aligned on the equator/_____ plate

A

metaphase

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10
Q

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

A

metaphase

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11
Q

WHICH PHASE: divides cell into 2 and enters upward phase

A

metaphase

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12
Q

WHICH PHASE: known as “upwards” phase

A

anaphase

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13
Q

WHICH PHASE: sister chromatids start moving towards the opposite poles

A

anaphase

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14
Q

WHICH PHASE: cell starts to become elongated

A

anaphase

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15
Q

WHICH PHASE: distance phase

A

telophase

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16
Q

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

A

telophase

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17
Q

WHICH PHASE: mitotic spindles become UNEMPLOYED

A

telophase!

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18
Q

WHICH PHASE: spindles depolymerize

A

telophase

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19
Q

WHICH PHASE: forms cleavage furrow

A

cytokinesis

20
Q

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

A

cytokinesis

21
Q

WHICH PHASE: kinetochores appear at the centromeres

A

prometaphase

22
Q

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

A

cytokinesis

23
Q

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

A

metaphase

24
Q

where do kinetochores sit?

A

on top of centromere

25
Q

What’s the order of the cell cycle?

A

PPMAT

26
Q

what is PPMAT?

A

Prophase, Prometaphase, Metaphase, Anaphase, Telophase

27
Q

where are chromosomes duplicated?

A

s phase

28
Q

what regulates the cell cycle?

A

cytokines and CDK

29
Q

what does the g1 checkpoint do?

A

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

30
Q

what does the m checkpoint check?

A

checks to see if the spindle fibers have their integrity intact

31
Q

what does g2 check for?

A

literally everything

32
Q

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

A

g0 phase

33
Q

where did eukaryotes come from?

A

prokaryotes

34
Q

prokaryotes are characterized by what?

A

nucleoid, no lysosomes,

35
Q

what are histones responsible for?

A

first level of packing in chromatin

36
Q

what is chromatin made of?

A

eight histone proteins and dna coiled around it?

37
Q

what is loosely packed chromatin called?

A

euchromatin

38
Q

EUCHROMATIN OR HETEROCHROMATIN: transcriptionally inactive

A

heterochromatin

39
Q

EUCHROMATIN OR HETEROCHROMATIN: actively present in prokaryotic and eukaryotic genomes

A

euchromatin

40
Q

EUCHROMATIN OR HETEROCHROMATIN: dna is loosely packed

A

euchromatin

41
Q

EUCHROMATIN OR HETEROCHROMATIN: dna is highly packed

A

heterochromatin

42
Q

EUCHROMATIN OR HETEROCHROMATIN: transcriptionally active

A

euchromatin

43
Q

are histones dna??

A

no!!!!!!!!!!!!!!! they are proteins…

44
Q

proteins are _______, lipids are _________

A

monomers, fake polymers

45
Q

what do ribosomes look like?

A

little dots

46
Q

does the rough ER have ribosomes?

A

no!!!!!!!!!!

47
Q

which type of cell has central vacuoles?

A

plant cells

Cells and Heredity (3 decks)

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