Vocabulary
Enzymes 1
Enzymes 2
Enzymes 3
100
Define active site
The place where the substrate binds
100
Can all enzymes always work effectively at pH of 1?
No. Enzymes will denature at that pH
100
Enzymes end in what three letters?
-ase
100
How does an enzyme act as a catalyst?
It speeds up chemical reactions
200
Define enzymes
Protein that speeds up chemical reactions
200
What is an activator? How does it help an enzyme?
Activators help the enzymes work harder and faster
200
What type of macromolecule is an enzyme?
Protein
200
Can a single enzyme be used over and over?
YES!
300
Define product
The substance that results from a chemical reaction
300
Why can't our body just use the disaccharide lactose (like in milk)? What happens to lactose when we drink milk?
Lactose is too big for our cells. Enzymes break down lactose into two monosaccharides (glucose and galactose)
300
How many DIFFERENT SHAPED substrates can fit into one active site?
only one substrate can fit into a specific active site
300
What has more energy, reactants or products?
Reactants
400
Define activation energy
The amount of energy it takes for a chemical reaction to occur
400
Why is having enzymes in our body so important?
Our body needs enzymes to help the chemical reactions occur quicker. Enzymes help our bodies work effectively/to its greatest potential.
400
Why are doctors so concerned with extremely high body temperatures (103, 104, etc)?
Important enzymes will denature, harming your body
400
Why is an enzyme complex always compared to a "lock and key"?
There is only one type of key that will fit into a lock, as there is only one type of substrate that will fit into the active site of an enzyme.
500
Define denature (as it relates to enzymes)
Anything that changes the shape of an enzyme
500

Name two controls for an enzyme

temperature & pH

500

What is the third letter in the word enzyme

z

500
Scientifically describe "lactose intolerance"
Your body does not have the enzyme lactase and therefore cannot digest the sugar lactose properly, making you feel sick/uncomfortable when you eat/drink things with lactose
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