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Paper 1
Topic B2-Organisation
Enzymes and digestion
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Created by
Jayce Wynn
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Cards (24)
What are the substances produced in digestion that mix with food?
Digestive enzymes
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What is the primary function of digestive enzymes?
To
break down
big
molecules
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What do carbohydrases convert carbohydrates into?
Simple sugars
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What is an example of a carbohydrate that is broken down by
amylase
?
Starch
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Where is amylase produced?
In the
salivary
glands,
pancreas
, and
small
intestine
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What do proteases convert proteins into?
Amino acids
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Where are proteases produced?
In the
stomach
,
pancreas
, and
small intestine
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What do lipases convert lipids into?
Glycerol
and
fatty acids
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Where are lipases produced?
In the
pancreas
and
small intestine
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How does the body utilize the products of digestion?
To make
new carbohydrates
,
proteins
, and
lipids
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What is the role of
glucose
in the body after digestion?
It is used in
respiration
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What is the function of bile in digestion?
To
neutralize stomach acid
and
emulsify fats
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Where is bile produced and stored?
Produced in the
liver
and stored in the
gall bladder
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Why is bile alkaline?
To
neutralize
the
acidic pH
from the
stomach
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How does bile aid in the digestion of fats?
By
emulsifying fats
into
smaller
droplets
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What are the main digestive enzymes and their functions?
Amylase
: Breaks down
starch
into simple
sugars
Protease
: Breaks down
proteins
into
amino acids
Lipase
: Breaks down
lipids
into
glycerol
and
fatty
acids
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Describe the process of digestion in the human body.
1.
Food
enters the
digestive system.
2.
Enzymes
break down
food molecules.
3.
Nutrients
are absorbed into the
bloodstream.
4.
Waste
is stored for
removal.
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What is the pH level of the stomach acid?
Approximately pH
2
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What is the role of the stomach in digestion?
It
pummels
food and produces
protease
enzyme
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What is the function of the gall bladder?
To store
bile
before it's released into the
small intestine
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What is the role of the
large intestine
in digestion?
To absorb
water
from the food
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What is stored in the rectum before excretion?
Faces made up mainly of
indigestible food
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What is the significance of the digestive system being a
continuous tube
?
It allows for the
efficient processing
of
food
and
absorption
of
nutrients
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What are the three parts of the digestive system that produce proteases?
The
stomach
,
pancreas
, and
small intestine
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