cell differentiation

cell differentiation

Multiple Choice

The structure formed 5 days after conception with a distinctive outer layer and inner layer is called?

• blastocyst

• zygote

• embryo

Multiple Choice

Your red blood cells only live on AVERAGE about 120 days and then they die. Where do replacement blood cells come from?

• Red blood cells divide and make new red blood cells before they die
• Blood stem cells in the bone marrow make new red blood cells
• Embryonic stem cells are still in your body and replace all worn out cells, including red blood cells
• You will not replace dead red blood cells, you have 30 days to live, make them count.

Multiple Choice

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

Multiple Choice

As cells become more specialized

• cells have access to more genes

• some genes are turned off

• some gene segments get lost

Multiple Choice

Which cell type would divide the least rapidly?

• Skin

• Red Blood cells

• Nerve

Multiple Choice

Which cell type would divide the most rapidly?

• Skin

• Muscle

• Nerve

Multiple Choice

can become any of the three cell layers in a

developing embryo (endoderm, mesoderm, ectoderm), but not the placenta surrounding the embryo.

• Totipotent

• Pluripotent

• Multipotent

Multiple Choice

a cell that has the most potential, able to become any type of cell.

• Totipotent

• Pluripotent

• Multipotent

Multiple Choice

_________ refers to a stem cell's ability to differentiate into other cell types

• potency

• potential

• dormancy

• aptitude

Multiple Choice

A stem cell transplant using a patient’s own stem cells is described as…

• Syngeneic

• Autologous

• Allogeneic

Multiple Choice

Adult stem cells are described as…

• Somatic

• Syngeneic

• Specialized

• replicated