Study Guide 2: Cell Division

Front 1

Explain the basic nature of mitotic cell division

Back 1

The mother cell divides into 2 daughter cells and the 2 daughter cells receives the same DNA (chromosomes) as the mother cell had.

Front 2

Word thar refers to the DIVISION of the NUCLEUS into 2 identical nuclei

Back 2

Mitosis

Front 3

Word that refers to the DIVISION OF THE CYTOPLASM and cytoplasmic organelles into 2 cells

Back 3

Cytokinesis

Front 4

Life of the cell BEFORE it is divided

Back 4

Interphase

Front 5

In what phase does the replication of DNA begin?

Back 5

Interphase

Front 6

What stage of mitosis describes the following:

1. The nuclear envelope is intact.

2. Nucleoli is intact.

3. DNA is loosely coiled, tangled and occurs as chromatin or chromatin threads.

Back 6

Interphase

Front 7

What stage of mitosis describes the following:

1. Nuclear envelope breaks down.

2. Nucleoli breaks down.

3. DNA tightly coils, untangles and now occurs as chromosomes.

4. Spindle begins to form.

Back 7

Prophase

Front 8

What stage of mitosis describes the following:

Alignment of the double starnade chromosome along the equaltoil plane of the spindle.

Back 8

Metaphase

Front 9

What stage of mitosis describes the following:

The centrosome split and the chromatids separate and then the single stranded chromosomes move or migrate toward the poles.

Back 9

Anaphase

Front 10

What stage of mitosis describes the following:

Begins with the arrival of the chromosomes of the poles.

Back 10

Telophase

Front 11

Explain how the events of Telophase are the reverse of Prophase.

Back 11

1. Reformation of nuclear envelope

2. Reforms the nucleoli

3. DNA loosely coils, tangles and again referred to chromatin or chromatin threads.

4. Spindle breaks down during Telophase

5. When Telophase is over we are now in Interphase stage.

Front 12

What are the 4 stages of mitosis?

Back 12

Prophase, Metaphase, Anaphase & Telophase

Front 13

Which of the 5 stages is not part of the stages of Mitosis? Why?

Back 13

Interphase because it is the life of a cell BEFORE it is divided.

Front 14

Describe the process of cytokinesis

Back 14

Mostly occurs during Telophase and is over when Telophase is over.

Occurs by formation of cleavage furrow.

Front 15

replicate DNA molecules of a double stranded chromosome

Back 15

Chromatids

Front 16

looks like boobs and occurs during Telophase

Back 16

Cleavage furrow

Front 17

structure that attaches the chromatids or double stranded chromosome

Back 17

Centromere

Front 18

after DNA replication, these 2 replicated DNA molecules are held together by a centrosome

Back 18

Double stranded chromosome

Front 19

In terms of electrons, explain when a substance is reduced and when it is oxidized.

Back 19

A substance is reduced by the addition of electrons, and a substance is oxidized by the removal of electrons.

Front 20

A substance is reduced by the addition of _____ OR the removal of _______.

Back 20

Addition of H's

Removal of O

Front 21

Asubstance is oxidized by the removal of ______ OR the addition of ______.

Back 21

Removal of H's

Addition of O

Front 22

In biological systems what is the most frequent mechanism of oxidation- reduction reactions?

Back 22

The addition and the removal of H’s.

Front 23

In the process of cellular respiration, the energy released due to the oxidation of food molecules {glucose } is stored in the form of what compound?

Back 23

It is stored in the form of ATP’s.

Front 24

What is the direct source of energy for most cellular activities?

Back 24

The direct source of energy is through this reaction:
ATP -------> ADP + P + Energy