Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

Bella Nat 5

Bella Nat 5 Unit 1 KA 3 Proteins and Enzymes

What is a catalyst? A chemical that speeds up chemical reactions
What are enzymes? Biological catalysts that are made inside living cells
What are enzymes made from? Protein
What is the purpose of enzymes? Speed up chemical reactions
What is a substrate? The substance that an enzyme works on.
What are product(s)? The substance(s) produced by an enzyme controlled reaction.
What is a synthesis reaction? One that builds big molecules from smaller ones
What is a degradation reaction? One that results in the breakdown of a large molecules to smaller ones.
Name an enzyme that performs a synthesis reaction. Phosphorylase
Name an enzyme that performs a degradation reaction. Amylase, Pepsin, Lipase, (i.e. any digestion enzyme, Catalase.
Why are enzymes specific? They only work on one substrate OR they only speed up one particular reaction.
What do you call the part of the enzyme that attaches to the substrate. The active site.
What is different about the enzyme after the reaction? Nothing.
Are enzymes re-useable? Yes
Name two factors that affect enzyme activity. Temperature, pH, Enzyme concentration, Substrate concentration.
What word do we use to describe an enzyme that has stopped working? Denatured
What has happened to denatured enzymes to make them stop working? Active site has changed its shape.
What do you do to make an experiment more RELIABLE? REPEAT it and calcululate AVERAGE results.
What do you do to make an experiment VALID VARIABLES must be kept constant.
What is the standard list of controlled variables? T, T, C, M, P, V
Name a commercial product that contains Enzymes. Biological washing powders.
What does the order of amino acids in a protein determine? The protein's shape and function.
Name as many functions of proteins as you can. Membrane structural proteins Enzymes Antibodies Hormones Receptors for Hormones (or neurotranmitters)
Created by: nscobie



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:
restart all cards