Font size
S
M
L
XL
Worksheets9.3.3. Biotechnology
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Why is yeast used to bake bread?
a)
The waste gas, CO2, makes bread rise
b)
The alcohol produced makes bread dangerous
c)
The yeast consumes O2, causing bread to rise
2.
What cells in the body may undergo lactic acid fermentation during exercise?
a)
Muscle cells
b)
Fat cells
c)
Liver cells
d)
Skin cells
3.
Fermentation is cellular respiration without which molecule?
a)
CO2
b)
O2
c)
C6H12O6
4.
How are lactic acid and alcoholic fermentation similar?
a)
They have the same products
b)
They have the same reactants
c)
They both require oxygen
d)
They occur in the same organisms
5.
The term "anaerobic" means :
a)
with oxygen.
b)
without oxygen.
c)
alive.
d)
nonliving.
6.
What are the waste products from fermentation? (Choose all that apply)
a)
starch
b)
carbon dioxide
c)
glucose
d)
alcohol
7.
yeast, molds, mushrooms are..
a)
fungi
b)
poison
8.
Plants and animals contain
a)
Living cells
b)
dead material
c)
biotechnology
d)
fermentation
9.
Cellular respiration is called an aerobic process because it requires_____
a)
exercise
b)
light
c)
glucose
d)
oxygen
10.
What type of food source do the yeast used for alcoholic fermentation?
a)
Starch or Sugars (such as glucose)
b)
Proteins
c)
Fats
d)
Fibre
11.
When beer is brewed, which ingredient is responsible for the fermentation of alcohol?
a)
Malt extract
b)
Wheat grains
c)
Yeast
d)
Hops
12.
What compound that creates the airy texture of a bread?
a)
Ethanol
b)
Carbon dioxide
c)
Oxygen
d)
Glucose
13.
predict what can happen to bacteria that live in an anerobic condition when oxygen is supplied.
a)
die
b)
dormant
c)
active
14.
Lactic acid fermentation occurs in your muscles after a workout because your cells are struggling to get...
a)
Glucose
b)
Sunlight
c)
Oxygen
d)
Water
15.
Which of the following is NOT made by fermentation
a)
Sauerkraut
b)
Bread
c)
Olive oil
d)
Yogurt
Reset
