Cell Cycle Flashcards Preview

MCAT Biology > Cell Cycle > Flashcards

Flashcards in Cell Cycle Deck (14):
1

G1 phase

G1 is the first growth phase. This is the phase in which most active cells live and function. The cell grows in size considerably during G1.

2

M Phase

Mitosis is often called “M Phase.”

3

G0 Phase

Cells that enter the G0 phase become “non-proliferative,” meaning they are not actively dividing and may not divide in the future. This is sometimes called “rest phase.” Many full-differentiated eukaryotic neurons remain in this phase indefinitely. You may hear this state referred to as “quiescent”—which means stable, not changing, and unlikely to change.

4

S Phase

During S phase the DNA is replicated

5

G2 Phase

The G2 phase follows S phase and features continued cell growth and high metabolic activity, especially the production of microtubules in preparation for mitosis.

6

# chromosomes before replication

46

7

# chromosomes after replication

46

8

# chromosomes during interphase

46

9

# chromosomes before S-phase

46

10

#chromosomes after S-phase

46

11

# chromsomes in a diploid cell

46

12

#chromosomes in a haploid cell

23

13

apoptosis

Programmed cell death featuring autolysis

14

what can cause apoptosis

cell exposed to extreme heat, radiation, viral infection, DNA damage, or just removal of healthy unwanted cells