Bio - Unit 2 - The Cell Cycle and Mitosis

Question 1

What are two reasons a cell has to divide?

Answer 1

1) DNA overload
2) Inefficiency of the cell membrane

Question 2

What are the 4 stages of the cell cycle?

Answer 2

G1, S, G2, M

Question 3

What is the shortest phase?

Answer 3

M-phase

Question 4

Where does the cell spend most of its time?

Answer 4

Interphase

Question 5

What are the 4 stages of mitosis?

Answer 5

Prophase
Metaphase
Anaphase
Telophase

Question 6

When DNA is resting/relaxed it is called…

Answer 6

Chromatin

Question 7

When chromatin is tense and wound up it is called…

Answer 7

chromosomes

Question 8

The middle part of a chromosome that holds it together is called the…

Answer 8

centromere

Question 9

What happens in the G1 phase?

Answer 9

Cell grows and develops

Question 10

What happens in the S phase?

Answer 10

Cell duplicates

Question 11

What happens in the G2 phase?

Answer 11

Cell prepares for division

Question 12

What are 3 ways to treat cancer?

Answer 12

Radiation, chemotherapy, surgery

Question 13

What protein regulates the cell cycle?

Answer 13

cyclin

Question 14

How many chromosomes does the human body have?

Answer 14

46

Question 15

How many feet of DNA are in the human body?

Answer 15

6 ft