CELL DIVISION PT 1

Prior to cell division, a cell has 14 chromosomes. How many will each of the daughter cells have?

2

All species have

A number of chromosomes that is unique to that species

What is the roll of the DNA in a cell

DNA is where all the information is stored in a cell

Chromosome

DNA wrapped around chromosomes

Cytokinesis

Division of cytoplasm

Mitosis

Division of the Nucleus

What are the five stages of the cell cycle

G1, S, G2 mitosis cytosinesis

Centromeres

Hold together sister chromatids

Sister chromatids

Identical parts replicated in a chromosome

G1, S, and G2 are collectively known as?

Interphase

Which of the following is true of interphase?

It consists of the G1, S, and G2 phase. It composes a large part of the life cycle of a cell. It is a time of cell growth and development. a cell is preparing for division during this time

Mother cell

Original cell at beginning of division

S phase

Replication of DNA occurs

G2 phase

The cell assembles the special structures needed for cell division

G1 phase

The cell doubles in size, the enzymes, cytoplasmic organelles and other molecules double in number

What problems might arise in a cell that did not complete its G1 phase prior to cell division?

The new cell might not have all the necessary organelles

Daughter cell

The product of cell division

Which of the following is the most important in determining how quickly materials can move into and out of a cell?

The surface area of the cell

As the cell grows larger which would increase rapidly? volume or surface area?

The volume of the cell increases more rapidly

Which of the following would be true at the completion of cell division?

Two identical daughter cells will have been formed

Cell division

When the cell divides

DNA

carries genetic information

Interphase

is where the cell prepares for cell division

The DNA is copied during which one of the following?

the S phase