Cancer is...

• Uncontrolled cell growth

• Normal cell growth

• A protein

• A cell cycle regulator

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-1

What is cell differentiation?

• The process where unspecialized cells become different in structure and function.

• When DNA controls the cell cycle.

• The ability of cells to make more cells.

• The ability of cells to maintain homeostasis.

Tags

NGSS.HS-LS1-4

Embryonic stem cells are?

• mutlipotent
• pluripotent
• totipotent
• isopotent 

The diagram shows the process of cell specialization from a single stem cell. Which of the following statements is true about the process of specialization.

• Specilized cells (blood, skin, nervous etc) cannot be produced from a single stem cell
• Specilized cells are produced immediately following fertilization
• Even though all the cells in an organism come from one single cell, they can specialize into different cell types
• Sincce all the cells in an organism come from one single cell, they must all have the same structure and function

Tags

NGSS.HS-LS1-4

What is one goal of cellular differentiation/specialization?

• To create specialized cells to help organism maintain homeostasis.
• To many cells.
• To make stem cells
• to make single celled organisms

Tags

NGSS.HS-LS1-4

What causes differentiation?

• The DNA is different in each type of cell. 
• Some cells have more or less DNA than others.
• Only specific parts of the DNA are activated.
• The DNA has genes that are expressed the same way.

Tags

NGSS.HS-LS1-4

All our cells, except sex cells like eggs or sperm, have ___________ DNA

• different
• similar
• exactly the same
• half the amount of 

Tags

NGSS.MS-LS3-2

When one sperm cell combines with one egg cell.

• Fertilization
• Binary Fission
• Asexual Reproduction 
• Mitosis

Tags

NGSS.MS-LS3-2

How do stem cells know what type of cells to differentiate into?

• The nucleus has instructions to turn some genes on and some genes off
• Signals from chemicals in the organism or from the environment determine which genes will be turned on and off
• Genes turn on and off randomly
• The cell has unique DNA that determines what the cell will become.

Tags

NGSS.MS-LS1-5

Mitosis is also referred to as...

• cellular multiplication

• cellular subtraction

• cellular addition

• cellular division

Tags

NGSS.HS-LS1-4