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Yr 11 - Stem Cells

Total questions: 31

Worksheet time: 29mins

Name
Class
Date
1.
Stem cells are
a)
cells that grow uncontrollably
b)
undifferentiated and can be any type of cell
c)
never go through cell division
d)
only found in embryos
2.
Stem cells can be obtained from
a)
embryos
b)
some adult tissues
c)
umbilical cord blood
d)
all of the above
3.
What does "pluripotent" mean?
a)
able to divide and make many different types of cells
b)
not able to divide
c)
can only divide and make one cell type 
d)
if it divides, it will make a cancerous tumor
4.
What process best explains how muscle cells and nerve cells can develop from the same fertilized egg?
a)
genetic engineering
b)
survival of the fittest
c)
differentiation
d)
selective breeding
5.
Which best explains why muscle cells are different from blood cells?
a)
Muscle cells are produced by the brain, but blood cells are produced by the heart. 
b)
Different genes are activated in muscle cells than in blood cells. 
c)
Muscles cells experience different environmental influences than blood cells. 
d)
A mutation occurs during the development of muscle cells but not in blood cells. 
6.
What is the difference between embryonic stem cells and adult stem cells?
a)
Embryonic stem cells can differentiate into more cell types than adult stem cells
b)
Adult stem cells are pluripotent, just like embryonic stem cells
c)
Adult stem cells can differentiate into more cell types than embryonic stem cells
d)
Adult stem cells grow bigger than embryonic stem cells
7.
Which is true about embryonic stem cells?
a)
They no longer divide, their cell type is set and cannot change.
b)
They can develop into only one type of cell.
c)
They can become any cell type in the body.
d)
They are found in adults.
8.
How do stem cells know what type of cells to differentiate into?
a)
The nucleus has instructions to turn some genes on and some genes off.
b)
Signals from chemicals in the organism or from the environment determine which genes will be turned on and off.
c)
Genes turn on and off randomly.
d)
The cell has unique DNA that determines what the cell will become.
9.
Which is true about Adult Stem Cells.
a)
They no longer do mitosis, their cell type is set and can not change
b)
They are limited to the type of  cell they can become.
c)
They can become any cell type in the body
d)
They are found in embryos
10.
what is the role of stem cells in the body 
a)
fight against infection 
b)
provide specialized roles in the body 
c)
used for fertility treatment 
d)
they produce new specialized cells in the body to replace old cells that are used up 
11.

Stem cells are

a)

undifferentiated or unspecialized cells in the body.

b)

differentiated or specialized cells in the body.

c)

only found in the inner mass cells of blastocyst

d)

only found in a fetus

12.

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

a)

potency

b)

potential

c)

dormancy

d)

aptitude

13.

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

a)

Totipotent

b)

Pluripotent

c)

Multipotent

14.

can become any of the three cell layers in a

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

a)

Totipotent

b)

Pluripotent

c)

Multipotent

15.

partially differentiated, with only the capacity to become one cell type.

a)

Totipotent

b)

Pluripotent

c)

Multipotent

16.
Why might stem cell research lead to a cure for diabetes?
a)
Use stem cells to grow pancreas cells that make insulin
b)
Use stem cells to make babies that do not have diseases
17.
What are iPS cells, and what do they mean to stem cell research?
a)
Induced purpose stem cells, mean embryo cells were made into adult-like cells
b)
Induced purpose stem cells, mean adult cells were reversed to baby cells
c)
Induced pluripotent stem cells, mean adult cells were made into embryo-like cells
d)
Induced pluripotent stem cells, mean cells were totipotent and are now pluripotent
18.
What do haematopoietic stem cells give rise to?
a)
Any cell type
b)
All muscle cells
c)
All blood cells
d)
All brain cells
19.
The developing embryo forms a gastrula with 3 distinct layers endoderm, mesoderm and ectoderm. These are known as ...
a)
Dermal layer
b)
Epiderm layer
c)
Zygoderm layer
d)
Germ layer
20.
Thalidomide was a drug given to pregnant women to counteract the effects of morning sickness. It caused congenital malformations such as the absence of limbs. When would it have been the most dangerous time to take Thalidomide?
a)
Weeks 3-4
b)
Weeks 5-6
c)
Weeks 7-8
d)
Weeks 9-10
21.
iPS stem cells are derived from ....
a)
Embryonic SC
b)
IVF embryos
c)
Blastocysts
d)
Adult somatic cells
22.
Advantages of embryonic stem cells over Adult and iPS stem cells are;
a)
Cell can divide indefinitely
b)
Cells can differentiate into any type
c)
Can grow large quantities
d)
All of the above
23.
Stem cells can be obtained from _________.
a)
embryos
b)
some adult tissues
c)
umbilical cord blood
d)
all of the above
24.
What does "multipotent" mean?
a)
able to divide and make one kind of cell
b)
able to divide and make all different types of cells
c)
able to divide and make multiple (but not all) types of cells 
d)
cannot divide
25.
What does "pluripotent" mean?
a)
able to divide and make all different types of cells
b)
not able to divide
c)
can only divide and make one cell type 
d)
if it divides, it will make a cancerous tumor
26.

What is true of induced pluripotent stem cells?

a)

They can be turned/forced into other types of cells.

b)

They can't be turned into other types of cells.

c)

They can be turned back into their original type of cell.

d)

all of the above

27.

Why is the use of embryonic stem cells controversial?

a)

The embryos are destroyed in the process of extracting the stem cells.

b)

People consider their use as destroying a life.

c)

They are taken from little kids, which is painful.

d)

They are put into a different person.

28.

What is a stem cell?

a)

A cell that can make copies of itself AND make more specialized types of cell

b)

A cell that helps to fight against infections

c)

A cell that is specialized

d)

A cell that can produce all the cell types of the body

29.

Neural stem cells from the brain can differentiate into which types of cell?

a)

Only specialized brain cells

b)

Specialized brain cells and specialized skin cells

c)

All types of specialized cells

d)

Only specialized blood cells

30.

A blastocyst is…

a)

A very early stage embryo

b)

A type of stem cell

c)

Part of the blood system

d)

A type of brain cell

31.

What are stem cell scientists investigating today

a)

When and how embryonic stem cells make decisions to produce more specialized cells

b)

How stem cells work in the body

c)

How stem cells might be used to treat disease

d)

All of the above

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