cell growth and division p.2

Question 1

growth factor

Answer 1

group of proteins that stimulate the growth of specific tissues

Question 2

cyclins

Answer 2

group of proteins that control cell cycle by activating particular enzymes

Question 3

apoptosis

Answer 3

the process of programmed cell death

Question 4

cancer

Answer 4

disease in which abnormal cells divide out of control and can invade other tissues

Question 5

tumor

Answer 5

abnormal mass of tissue that forms when cells divide more than they should or do not die when they should

Question 6

embryo

Answer 6

early stage in development of humans or other animals and plants

Question 7

differentiation

Answer 7

process in which young cells mature/develop individual characteristics

Question 8

totipotent

Answer 8

ability of a cell to divide and create ALL differentiated cells in an organism (including placenta)

Question 9

blastocyst

Answer 9

cluster of dividing cells made by a fertilized egg

Question 10

pluripotent

Answer 10

a cell with the potential to differentiate into many different types of cells (EXCEPT placenta)

Question 11

stem cell

Answer 11

an undifferenciated cell capable of developing into many of the same type of cell, or other differentiated cells

Question 12

multipotent

Answer 12

A cell with the potential to differenciate into specefic cell types (lower differentiation potential)