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WorksheetsUnit 2: Day 4
Total questions: 23
Worksheet time: 19mins
Name
Class
Date
1.
This type of cell sends messages throughout the body in the form of electrical impulse.
a)
nerve cell
b)
sperm cell
c)
muscle cell
d)
skin cell
2.
This type of cell is found in males and is responsible for reproduction.
a)
sperm cell
b)
egg cell
c)
muscle cell
d)
nerve cell
3.
This type of cell carries oxygen throughout the body.
a)
gamete
b)
platelet
c)
white blood cell
d)
red blood cell
4.
This type of cell fights infection.
a)
red blood cell
b)
platelet
c)
white blood cell
d)
antibacterial cell
5.
This type of cell is found in females and is needed for reproduction.
a)
egg cell
b)
sperm cell
c)
fertilization cell
d)
yolk cell
6.
In what way is the DNA of a nerve cell different from the DNA of a muscle cell?
a)
The DNA is the same but each cell contains different genes
b)
The DNA is the same but different genes are turned on and turned off in each cell
c)
The DNA is different, but the same genes are turned on and off in each cell
d)
The DNA is different, but each cell contains the same genes
7.
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.
a)
Specilized cells (blood, skin, nervous etc) cannot be produced from a single stem cell
b)
Specilized cells are produced immediately following fertilization
c)
Even though all the cells in an organism come from one single cell, they can specialize into different cell types
d)
Sincce all the cells in an organism come from one single cell, they must all have the same structure and function
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.
The skin cell and hair cell contain different sets of DNA. And that is why they are different cells.
a)
True
b)
False
10.
Nerve cells have different DNA from hair and skin cells in your body.
a)
True
b)
False
11.
Specialized cells such as skin cell and muscle cell carry out specific function because only certain parts of genes are expressed.
a)
True
b)
False
12.
Hair cell and nerve cell have identical DNA. The DNA is changed in skin cell to perform a specific function such as protection.
a)
True
b)
False
13.
All our cells, except sex cells like eggs or sperm, have ___________ DNA
a)
different
b)
similar
c)
exactly the same
d)
half the amount of
14.
What is cell specialization or differentiation?
a)
The process where unspecialized cells become different in structure and function.
b)
When DNA controls the cell cycle.
c)
The ability of cells to make more cells.
d)
The ability of cells to maintain homeostasis.
15.
In what way is the DNA of a nerve cell different from the DNA of a muscle cell?
a)
The DNA is the same but each cell contains different genes
b)
The DNA is the same but different genes are turned on in each cell
c)
Each cell has its own unique DNA
d)
The DNA is different, but each cell contains the same genes
16.
What is one goal of cellular differentiation/specialization?
a)
To create specialized cells to help organism maintain homeostasis.
b)
To many cells.
c)
To make stem cells
d)
to make single celled organisms
17.
individual cells become specialized in both form and function through the process of?
a)
mitosis
b)
cell cycle
c)
specialization
d)
differentiation.
18.
During an organism’s development, some cells ______________ to become a wide variety of__________.
a)
die, dead cells
b)
change, sperm cells
c)
differentiate, body cells
d)
differentiate, embryonic cells
19.
Which is NOT a new, potential benefit of stem cell research?
a)
growing new skin cells to repair a cut
b)
replacing heart cells damaged by heart attacks
c)
repairing breaks between nerve cells in spinal injuries
d)
preventing suffering and death caused by cellular damage
20.
Which of the following is NOT a source for stem cells?
a)
umbilical cord blood
b)
early embryos
c)
sperm and eggs
d)
certain adult tissues
21.
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.
22.
This type of cell carries oxygen throughout the body.
a)
gamete
b)
platelet
c)
white blood cell
d)
red blood cell
23.
Which of the following is a plant cell?
a)
A
b)
B
c)
C
d)
D
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