embryonic stem cells can differentiate into what kinds of cells
only cells of the brains
only specialized blood cells
only cells derived from tissues
all types of specialized cells in the body
28. Multiple Choice
30 seconds
1 pt
what is the role of stem cells in the body
fight against infection
provide specialized roles in the body
used for fertility treatment
they produce new specialized cells in the body to replace old cells that are used up
29. Multiple Choice
30 seconds
1 pt
what are adult stem cells?
differentiated cell, thought to be found among other differentiated cells in a tissue or organ
undifferentiated cell, found among differentiated cells in a tissue or organ
they are the same as embryonic stem cells
undifferentiated cell, found among other differentiated cells in an organism
30. Multiple Choice
30 seconds
1 pt
a blastocyst is
a type of stem cell
a very early stage embryo
part of the blood system
a type of brain cell
31. Multiple Choice
30 seconds
1 pt
Which of the following is NOT a source for stem cells?
umbilical cord blood
early embryos
sperm and eggs
certain adult tissues
32. Multiple Choice
30 seconds
1 pt
Stem cells are
cells that grow uncontrollably
undifferentiated and can be any type of cell
never go through cell division
only found in embryos
33. Multiple Choice
1 minute
1 pt
Which of the following terms describes the fertilized egg?
oocyte
zygote
blastocyst
somatic
34. Multiple Choice
45 seconds
1 pt
All our cells, except sex cells like eggs or sperm, have ___________ DNA
different
similar
exactly the same
half the amount of
35. Multiple Choice
45 seconds
1 pt
In what way is the DNA of a nerve cell different from the DNA of a muscle cell?
The DNA is the same but each cell contains different genes
The DNA is the same but different genes are turned on in each cell
Each cell has its own unique DNA
The DNA is different, but each cell contains the same genes
36. Multiple Choice
30 seconds
1 pt
A somatic cell is...
any cell of a living organism other than the reproductive cells.
The reproductive cells of an organism.
an undifferentiated cell of a multicellular organism
one or more layers of densely packed cells
37. Multiple Choice
30 seconds
1 pt
A germ cell or gamete is...
any cell of a living organism other than the reproductive cells.
The reproductive cells of an organism.
an undifferentiated cell of a multicellular organism
one or more layers of densely packed cells
38. Multiple Choice
45 seconds
1 pt
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.
39. Multiple Choice
2 minutes
1 pt
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
40. Multiple Choice
30 seconds
1 pt
Which is NOT an example of cell differentiation?
Bone marrow cells are used to repair damage to heart tissues
A fertilized egg to cell developed into an embryo
A leaf cell divides as a plant leaf grows
Stemm cells from bone marrow develop into blood cells
41. Multiple Choice
30 seconds
1 pt
Developing stage of a multicellular organism
Cell
Embryo
Cub
Baby
42. Multiple Choice
30 seconds
1 pt
Process in which cells become specialized in structure and function
Definition
Distinction
Tarnation
Differentiation
43. Multiple Choice
30 seconds
1 pt
Cells that are able to develop into any type of cell found in the body
Totipotent
Plant Cell
Pluripotent
Embryonic cell
44. Multiple Choice
30 seconds
1 pt
Cells that are capable of developing into most, but not all, of the body's cell types
Pluripotent
Developing cell
Omnipotent
Totipotent
45. Multiple Choice
2 minutes
1 pt
Hemoglobin is a protein that carries Oxygen to all of the parts in the body. What type of specialized cell would be expressing the hemoglobin gene (DNA)?