Unit 2 Bio

Question 1

What are two reasons cells have to divide

Answer 1

• Allows cells to grow
• Allows cells to repair themselves

Question 2

Explain what DNA overload means

Answer 2

Occurs when the replication system has trouble keeping up with the demand for DNA replication

Question 3

What is the cell cycle?

Answer 3

Events that take place in a cell that causes it to divide into 2 different daughter cells

Question 4

Cells spend most of their lifetime in what stage?

Answer 4

Interphase

Question 5

What 3 phases of the cell cycle does this include?

Answer 5

G1 Phase, S Phase, G2 Phase

Question 6

How many chromosomes are found in human body cells?

Answer 6

42 chromosomes in the human body

Question 7

G1 Phase

Answer 7

cells accomplish most of their growth. They get bigger in size and make proteins

Question 8

S Phase

Answer 8

DNA replication and much of the DNA repair activity occurs in cells

Question 9

G2 Phase

Answer 9

Cell prepares for mitotic division

Question 10

What does cyclin do

Answer 10

Regulates the cell cycle

Question 11

Internal regulators-

Answer 11

Cause cancer

Question 12

What is a benign tumor

Answer 12

A tumor thats cells remain at the original site

Question 13

Malignant tumor

Answer 13

Cells break away and begins to spread

Question 14

Cancer cells are immortal
(True or False)

Answer 14

True

Question 15

Ways to cure/treat cancer

Answer 15

-Surgery
-Chemotherapy
-Radiation