The Cell Cycle Flashcards Preview

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Flashcards in The Cell Cycle Deck (35):
1

Which grows at a faster rate, surface area or volume? Why?

Volume increases faster because it is 3-Dimensional and surface area is only 2-Dimensional

2

This problem occurs when a cell grows too large for the fixed amount of DNA that controls its activities.

DNA Overload

3

This problem happens to cells that become too big because the ratio of surface area to volume becomes too small.

Transportation Issues

4

The process occurs before a cell grows too large.

Cell Division

5

2 of these are produced when 1 cell divides.

Daughter Cells

6

These are the 3 steps of the cell cycle.

Interphase, Mitosis and Cytokinesis

7

These are the TWO steps in cell division.

Mitosis and Cytokinesis

8

These are the 3 parts of Interphase, in order.

G1, S Phase, and G2

9

This is the division of just the nucleus.

Mitosis

10

These are made of DNA and carry genetic information.

Chromosomes

11

This is what a "replicated" chromosome is composed of.

TWO sister chromatids

12

This is the connection point where 2 sister chromatids are connected.

Centromere

13

This is a period of growth, replication and activity that happens between cell divisions.

Interphase

14

The cell grows larger during this first part of interphase. New proteins and organelles are also produced.

G1

15

DNA replication and synthesis of new chromosomes occur in this part of interphase.

S Phase

16

The cell prepares for cell division by producing organelles like centrioles.

G2

17

These are the 4 phases of mitosis in order

Prophase Metaphase Anaphase Telophase (P-M-A-T)

18

These are the events of Prophase

1. The nucleus dissolves & replicated chromosomes become visible. 2. Centrioles start to move to opposite sides. 3. Spindle fibers start to form

19

This is what happens in Metaphase

Replicated chromosomes line up in the Middle of the cell between centrioles. Each is connected to a spindle fiber.

20

This is what happens in Anaphase

Sister chromatids of replicated chromosomes are pulled Apart

21

This is what happens in Telophase

Two nuclei form around opposite groups of chromatids in a single cell. Cytokinesis also begins here.

22

This is how many nuclei are present in one cell when MITOSIS is complete.

Two

23

These are the only 2 phases of mitosis where replicated chromosomes are seen.

Prophase and Metaphase

24

This is the job of spindle fibers

To organize chromosomes and pull sister chromatids apart

25

This process occurs after mitosis and causes the rest of the cell to divide.

Cytokinesis

26

These type of cells carry out cytokinesis by "pinching in" (forming cleavage furrows) until they divide.

Animal Cells

27

Because a plant cell has this, it cannot pinch in during cytokinesis.

Cell Wall

28

This forms between 2 plant cells when they undergo cytokinesis.

Cell Plate

29

If a parent cell has 46 chromosomes, how many chromosomes will be found in each of the daughter cells after cytokinesis is complete?

46

30

This is the formula for calculating volume.

L x W x H

31

This is the unit in which volume is measured.

cm3

32

This is the formula for calculating the surface area of a cube.

6 (L x W)

33

This is the unit in which surface area is measured.

cm2

34

During which phase of mitosis do chromosomes become visible?

Prophase

35

What kind of cells undergo the cell cycle?

Somatic (body) cells undergo the cell cycle.