lesson 8 Flashcards
what does enzyme lipaze breaks substrate ands products
breaks down fats into fatty acid into glycerol
in the experiment how do you know that the fat ahd been broken down to produce fatty acids (conclusion)
pH ofthe milk has become more acidic in the sample containing lipase this shows the fat has been broken down in to fattty acids
in the last diagram what is being represented
small intestine
food
blood
what do you use to test for startch
iodine soulution
what do you use to test glucose
benedics souloution
what colour is the iodine souloution
yellow red or brown
what coour is iodine soulution when there is startch in it
blue black coulour
what is the colour of the bendedicts solution
blue
what is the colour of the benedics solution when glucose is present
green/yellow if the amount is low and red if it is high.
what are the finger like projections inside the small intestine called
villi
villi provides a
large surface area
how much cellls thick is the linning of the villus
i cell thick
the products of the fat digestion ie fatty acids and glycerol wouod be carried away by
lacteals
what are lacteals part of
lacteals are a part of lymphatic system .
what is the feauture cell linning only one cell thick role in absorption
allows more molecues to pass through easily
how does the feature network of blood capillaries play a role in the absorbtion
transports amino acids and glucose to the rest of the body
how does the feauture tiny lacteal present play a role in the absorbtion
transports fatty acids and glycerol to the rest of the body
the materials that pass into the large intestine are mainly
undigested matter
bacteria and dead cells
as waste materials pass along the large intestine what is absorbed intlo blood
water and salts
what is the substance that are salts and water and are semi solid
faeces
