Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

GCSE Enzymes 1

Digestive Enzymes and Food Tests

QuestionAnswer
3 types of digestive enzymes carbohydrases, proteases and lipases
Example of a carbohydrase enzyme amylase
where is amylase made salivary glands, pancreas and small intestine
what are carbohydrates such as starch broken down into simple sugars such as glucose
where are proteases made stomach, pancreas and small intestine
what are the products of protein digestion amino acids
where do proteases work stomach and small intestine
what are the products of lipid digestion glycerol and fatty acids
where are lipases made pancreas and small intestine
where is bile made liver
where is bile stored gall bladder
2 functions of bile neutralises HCl from stomach acid and emulsifies fats
what does it mean to emulsify fats break the fats into tiny droplets
why does emulsification of fats make digestion faster gives a bigger surface area for lipase enzymes to work on
why is it important that bile is alkaline to neutralise stomach acid and create optimum conditions for enzymes in small intestine
test for starch add iodine solution
colour change in iodine solution if starch is present browny-orange to black or blue-black
test for presence of proteins biuret test
colour change in test solution if protein present blue to purple
test for lipids Sudan 111
result of Sudan 111 test if lipid present mixture will separate into 2 layers, top one is red
test for presence of reducing sugars Benedict's Test
normal colour for Benedict's solution blue
order of colour changes when different amounts of sugar are present blue to green to yellow to brick red with increasing amounts of sugar
protease found in the stomach pepsin
where does the gall bladder release bile into small intestine
where does absorption of products of digestion happen small intestine
functions of hydrochloric acid kill bacteria, make acidic conditions for pepsin, works best at pH2
function of digestion break big molecules into smaller ones that can easily be absorbed
sugar that is made when amylase catalyses breakdown of starch maltose
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards