Question

Jennifer stews peaches to make peach jelly. She believes the homemade jelly will make a healthy treat full of vitamins and enzymes her body needs. Which of the following disproves her prediction?

Answer 1

A.The peaches don't contain enzymes.
B.The jelly has too much sugar to be healthy.
C.The enzymes in the peaches have denatured.
D.The vitamins in the peaches will inhibit the enzymes.

Answer 2

A biologist adds a vitamin solution to an enzyme/substrate solution that requires co-factors. What will happen to the substrate?
The vitamins will bond to the enzymes and increase their reactivity with the substrates.
The vitamins will bond to the enzymes and decrease their reactivity with the substrates.
The substrate molecules will bond to the vitamin molecules and inhibit bonding of the enzyme.
The substrate molecules will bond to the vitamin molecules and stimulate bonding of the enzyme.

Answer 3

When you boil/cook something, the enzymes and vitamins usually all decrease or disappear entirely, so i would answer C because they have been "stewed".

The second question, is stimulating the bonding of the enzyme most likely, so i would say D.

Answer 4

Enzymes are proteins and will be denatured by cooking, so C is correct for the first one, but the second one would be A. The vitamin acts as a coenzyme and binds to the enzyme to increase it's ability to bind to the substrate.

Answer 5

could you guys help me with a few more questions?

Answer 6

Which factor increases the rate of a chemical reaction?
A. An inhibitor
B. A co-factor
C. Decreased substrate
D. Cold temperature

Answer 7

inhibitors slow things down
co-factors speed things up
less substrate slows the reaction as do colder temperatures.