Download Grade 8 Cell Unit Review What is an organelle? What is the cell

Grade 8 Cell Unit Review
1.What is an organelle?
2.What is the cell membrane/what does it do?
3.What is the cytoplasm?
4.What does DNA do?
5.What is the nucleus/what does it do?
6.What is the mitochondria/what does it do?
7.What is cellular respiration?
8.What are ribosomes/what do they do?
9.What is the endoplasmic reticulum/what does
it do?
10.
What is the Golgi Body/what does it do?
11.
What is a vesicle?
12.
What is a vacuole/what does it do?
13.
What is a lysosome/what does it do?
14.
What kind of cells have cell walls?
15.
What are chloroplasts/what do they do?
16. True or False: all living cells come from
other cells.
17. True or False: a living thing does not have
to have cells.
18. What do organisms have to do to be
considered alive?
19.
What are prokaryotic cells?
20.
What are eukaryotic cells?
21. True or False: humans have prokaryotic
cells.
22.
True or False: all our cells contain DNA.
23. Name two of the three different shapes of
bacteria.
24.
Are viruses alive? Why or why not?
25.
How do viruses reproduce?
26.
What is diffusion?
27.
What is osmosis?
28. If I place a three drops of food colouring
into a beaker of water, the food colouring will
appear in patches in the water but it will
eventually spread out to the whole beaker.
What is happening with the food colouring and
the water? What is this process called?
29. If I have a selectively permeable
membrane (that allows sugar to go through it)
and place sugar on one side of that membrane
in a solution of water, what will the sugar do?
What is it called when there is an equal
amount of sugar on each side of the
membrane?
30. Where in our bodies do we see osmosis or
diffusion work?
31.
What is a body system?
32. True or False: our body is made up of one
big body system.
33.
What are tissues? What are they made of?
34.
What are organs? What are they made of?
35. Name three of the four categories of
nutrients we get from our food.
36. What do we get from our food besides
nutrients?
37. Put the following list of digestive stages
and organs in order from the beginning to the
end of the digestive process:
o
o
o
o
o
o
o
Large intestine
Epiglottis
Mouth
Stomach
Esophagus
Liver
Duodenum
38. What is the difference between chemical
and physical digestion?
39. In what part of the digestive system do
water and nutrients get absorbed?
40. In what part of the digestive system does
food get ingested?
41. Where in the digestive system does food
get digested?
42. What two organs in the digestive system
produce digestive enzymes to be used in the
small intestine?
43.
What is peristalsis?
44.
What are villi? What do they do?
45. Explain why the intestines are folded and
wrinkled.
46.
How many chambers are in the heart?
47. Which side of the heart deals with
oxygenated (red) blood?
48. Which side of the heart deals with
deoxygenated (blue) blood?
49.
What is the largest artery in the body?
50.
What is the vena cava?
51.
What are arteries?
52.
What are veins?
53.
What are capillaries?
54. Why do we need capillaries? What happens
in the capillaries?
55. What are the three kinds of cells found in
blood? What do each of them do?
56. What is the clear, watery liquid that blood
cells float in?
57.
What are alveoli?
58. What is the name of the muscle that pulls
your lungs open and relaxes to let you breath
out?
59. Where does air get warmed, moistened,
and cleaned in the respiratory system?
60.
What are cilia/what do they do?
61.
What is the trachea?
62. What is the name of the tubes/branches
that carry air from the trachea into the lungs?
63.
What is the immune system’s job?
64. What is the first line of defense in the
immune system (that stops most antigens and
pathogens from entering the body)?
65. Name two of the three innate immune
responses your body uses when it is first
attacked by an antigen.
66. What cells are involved in acquired
immune response?
67.
What are antibodies?
68. Name two different kinds of white blood
cells and explain what they do.
69.
What are phagocytes?
70.
What are lymphocytes?
71.
Where are T-Cells specialized?
72.
Where are B-Cells specialized?
73.
What is active immunity?
74.
Name two ways I can make a vaccine.
75.
What is an allergic reaction?
76.
What is an allergy?
77.
What is histamine? What does it do?
78. Name one reason why HIV is so hard to
treat.