MITOSIS

Question 1

Cells follow a definite stage of growth, development and division known collectively as ____

Answer 1

Cell Cycle

Question 2

_____ are highly alkaline proteins found in eukaryotic cells that package and label DNA into structural units called _____

Answer 2

Histones ; nucleosomes

Question 3

Why is interphase not called ‘resting phase’?

Answer 3

Because in the interphase, cells do cellular activities. They constantly move, and therefore not resting.

Question 4

TRUE OR FALSE:

Cell division is only a portion of the whole cell cycle.

Answer 4

True.

Question 5

What happens in Gap 1 or the pre-synthetic stage)

Answer 5

• there is rapid growth of cells, nut cells cannot grow beyond its limited size due to the ratio and cell surface.
• organelles double in size
• cells carry out their daily metabolic functions

Question 6

TRUE OR FALSE:

It is in synthesis that cells spend most of their time.

Answer 6

FALSE

Question 7

What stage in interphase does DNA replication happen?

Answer 7

Synthesis

Question 8

In this stage, the cells continue to grow and produce proteins that are necessary for cell division.

Answer 8

Gap 2

Question 9

What type of cells are being divided in the Mitosis?

Answer 9

Somatic cells / body cells

Question 10

What do you call these long, continuous thread of DNA that is wounded together by a DNA-associated proteins ?

Answer 10

Chromosomes

Question 11

This is a process by the DNA is duplicated, divides into two parts with each organism receiving one copy of DNA

Answer 11

binary fission

Question 12

TRUE OR FALSE:

In the mitosis, the presence of nuclear membrane disintegrates and only comes back once telophase is reached.

Answer 12

TRUE

Question 13

What is the purpose of Mitsosis?

Answer 13

• to give the hereditary material from the parent cell to the daughter cells.
• to distribute the identical set of genetic instructions, one for each chromosome to the two daughter cells.

Question 14

How many cells are formed in the Mitosis?

Answer 14

2

Question 15

Name the stages in Mitosis

Answer 15

(1) prophase (2) metaphase (3) anaphase (4) telophase

Question 16

What term is referred to the division of the nucleus into two genetically identical nuclei?

Answer 16

Mitosis

Question 17

This is the division of cyctoplasm.

Answer 17

Cytokinesis

Question 18

In this stage:

• the centrioles begin to move
• the nucleolus becomes less distinct, but the nuclear membrane is still visible.
• there is a formation of aster

Answer 18

Early Prophase

Question 19

In this stage:

• there is a formation of metaphase plate
• the chromosomes line up in the equator, while its centromere are being held by the spindle fibers.
• nuclear membrane has completely disintegrates

Answer 19

Metaphase

Question 20

What stage is it when the sister chromatids separate from one another, seemingly being pulled by the spindle fibers?

Answer 20

Anaphase

Question 21

In which stage does cytokinesis begin?

Answer 21

Telophase

Question 22

What stage is this: The nucleolus reappears and there is a formation of new nuclear membrane. The cleavage furrow also deepens and cells finally divide.

Answer 22

Telophase

Question 23

What do you call an orderly programmed death of cell?

Answer 23

Apoptopis

Question 24

What do you call an enzyme that transfers a phosphate group from one molecule to a target molecule, in which this mechanism either accelerates the energy or change its shape.

Answer 24

Kinases

Question 25

This enzyme is eventually killed at a certain point in cell cycle to allow the cells to progress from G1 to M?

Answer 25

Cyclins

Question 26

What is the term referred to the accidental death of cell?

Answer 26

Necrosis