Mitosis

Question 1

What is Mitosis?

Answer 1

Mitosis is a process of cell division that results in two daughter cells and is essential for replenishing tissue.

Question 2

What exactly are the stages of mitosis?

Answer 2

Prophase, metaphase, anaphase, telophase, and cytokenesis.

Question 3

What is the Prophase stage?

Answer 3

The chromatin condenses into visible chromosomes then the Nuclear membrane disintegrates

Question 4

What is the metaphase?

Answer 4

The chromosomes line up in the center and spindle fibers attach to the centromeres

Question 5

What is the Anaphase

Answer 5

The chromosomes are pulled apart by the spindle fibers and they move to opposite parts of the cell.

Question 6

What is the Telophase?

Answer 6

After the CHROMATIDS are in opposite parts of the cell, the nuclear membrane reforms and the chromosomes decondense into chromatin.

Question 7

What is cytokinesis

Answer 7

Final step, the cytoplasm divides and forms two daughter cells.

Question 8

How does the step cytokinesis differ between plant and animal cells?

Answer 8

In an animal cell the cleavage furrow forms to split the cells
Plant cells- the cell plate forms to split the cells

Question 9

What is an allele?

Answer 9

Many versions of a specific gene

Question 10

What be a centriole?

Answer 10

It be an organelle in animal cells and pwoduces spindle fibers

Question 11

What’s a centromere?

Answer 11

It is a region of DNA that binds chromosomes together

Question 12

What’s a chromatid

Answer 12

1/2 of a chromosome which is produced when DNA wraps around a protein.

Question 13

What is a chromatin?

Answer 13

It is a material that makes up chromosomes

Question 14

What’s a diploid?

Answer 14

It is a set of chromosomes in a cell.

Question 15

What’s a haploid?

Answer 15

1/2 of homogenous chromosomes in a cell.

Question 16

What be a gene?

Answer 16

It is the code of DNA the determines which protein will be synthesized.

Question 17

What are homologous chromosomes?

Answer 17

They are the same genes but they have different alleles.

Question 18

What are sisters?

Answer 18

They are identical chromosomes.

Question 19

What are spindle fibers?

Answer 19

They are microtubules that are produced by centrosomes and pull sister CHROMATDDDDDDDS apart in mitosis.

Question 20

Why do chromatin need to condense? (lab question).

Answer 20

They are less likely to break or tangle.

Question 21

Why did the nuclear membrane disintigrate in the Prophase?

Answer 21

It allows better movement for chromosomes, centrioles and spindle fibers in the nucleus cytoplasm, so the metaphase can happen.

Question 22

What are the four steps in the cell cycle?

Answer 22

G1, S, G2 and mitosis.

Question 23

What is the interphase?

Answer 23

It is a phase in the cell cycle that prepares the cell for mitosis.

Question 24

what is the g1 and G2 phase?

Answer 24

Cells makes organelles, it increases in size, synthesizes proteins all in prep. for mitosis.

Question 25

What is the S phase?

Answer 25

Chromosomes duplicated to form sister chromatids.

Question 26

what about G0 phase?

Answer 26

Nothing happens, they rest, homeostasis, living life, livin’ the dream. NO DIVISION.

Question 27

Why are cells small?

Answer 27

Cells need a large SA compared to their volume so materials can diffuse in and out faster. Since they get so large so cells divide to stop getting so large.

Question 28

Why do cells divide?

Answer 28

They need to divide to keep a larger SA compared to its volume to absorb nutrients well, allow gas exchange and removal of waste.

Question 29

What is asexual reproduction?

Answer 29

A single parent cell that that divides and offspring is genetically identical.