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FERMENTATION

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.
Fermentation involves
a)
aerobic respiration
b)
anaerobic respiration 
2.
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
3.
What cells in the body may undergo lactic acid fermentation during exercise? 
a)
Muscle cells
b)
Fat cells
c)
Liver cells
d)
Skin cells
4.
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
5.
Fermentation is cellular respiration without which molecule?
a)
CO2
b)
O2
c)
C6H12O6
6.
The process carried out by yeast that causes bread to rise is
a)
alcoholic fermentation
b)
lactic acid fermentation
c)
cellular respiration
d)
yeast mitosis
7.
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
8.
After intense activity, your muscles feel sore because of 
a)
the accumulation of NAD+
b)
the accumulation of lactic acid 
c)
the accumulation of ATP
d)
the accumulation of carbon dioxide
9.

The term "anaerobic" means :

a)

with oxygen.

b)

without oxygen.

c)

alive.

d)

nonliving.

10.

What are the waste products from fermentation? (Choose all that apply)

a)

starch

b)

carbon dioxide

c)

glucose

d)

alcohol

11.
If your body runs out of oxygen, it will begin to perform ______.
a)
alcohol fermentation
b)
photosynthesis
c)
cellular respiration
d)
lactic acid fermentation
12.
Where is lactic acid produced?
a)
in muscles
b)
in bread
c)
in plants
d)
in cheese
13.
Which process produces CO2 as a waste product?
a)
Lactic Acid Fermentation
b)
Ethanol (Alcoholic) Fermentation
14.

Yeast can be forced into an anaerobic environment - an environment without oxygen - to carry out _________ fermentation.

a)

anabolic

b)

alcoholic

c)

metabolic

15.

In food industries, several types of fungi and bacteria are forced into ___________ environments in order to transform milk into cheese and yogurt, soybeans into soy sauce, and cabbage into sauerkraut.

a)

anaerobic

b)

aerobic

16.

In the cheese- and yogurt-making industry, organisms produce lactic acid, which ends up ____________the food product.

a)

spoiling

b)

flavoring

c)

energizing

17.

Name the bacteria that carries out milk fermentation to produce yogurt.

a)

E. Coli

b)

Lactobacillus

c)

Spirongyra

d)

Streptococcus

18.

.....A....... acts on the lactose (milk sugar) and tuns it into ......B.......

a)

A : Lactobacillus B. Lactic acid

b)

A. Lactobacillus B. Ethanol

c)

A. Streptococcus B. Lactic acid

d)

A. Streptococcus B. Ethanol

19.

the lactic acid will coagulate ..................... to produce yogurt.

a)

pepsin

b)

renin

c)

casein

d)

maltose

20.

predict what can happen to bacteria that live in an anerobic condition when oxygen is supplied.

a)

die

b)

dormant

c)

active