3.7 Making Digestion Efficient Flashcards
Body temp
37 degrees
Which pH does protease found in the stomach work best at
Acidic conditions
Which pH does protease produced by the pancreas work best in
Alkaline conditions
How many glands do you have in the lining of your stomach
35 million
What do the glands in the stomach release
Pepsin
What is pepsin
A protease enzyme
What acid solution does the stomach produce
Hydrochloric acid
What does hydrochloric acid do
Allows protease enzymes to work effectively, kills most of the bacteria in the food you eat
What does the stomach produce that coats the walls
Thick layer of Mucus
What does the mucus do
Coats stomach and prevents it from being digested by the acids and enzymes
What happens when someone has a stomach ulcer
The protecting mucus is lost and acid production may increase, lining of stomach attacked by acid and enzymes, very painful
How long does it take for food to leave stomach after meal is eaten
A few hours
How does the acidic liquid from stomach become alkaline
Thanks to bile, green-yellow alkaline liquid made by liver and stored by gall bladder until it is needed
What happens when food comes from the stomach to the small intestine
Bile squirted onto it through the bile duct, bile neutralises acid from stomach
Do enzymes of the digestive system need to work on a small or large surface area
Large
