weeks 6 & 7

Question 1

common parts of a mollusc

Answer 1

mantle
foot
radula
shell

Question 2

chiton

Answer 2

slow scavenger
has a radula, mantle, foot, and shell
no siphon

Question 3

clam

Answer 3

sedentary filter feeder
has mantle, foot, shell, and two siphons
no radula

Question 4

snail

Answer 4

sort of slow scavenger
has a radula, mantle, foot, and shell
no siphon

Question 5

squid

Answer 5

fast predator
has radula, mantle, shell, and siphon
no foot

Question 6

what is a cofactor?

Answer 6

helps the enzyme’s active site bind to the substrate

Question 7

what is a chelating agent?

Answer 7

group of compounds that mind to metallic ions by changing the shape of the enzyme

Question 8

why is the potato chopped?

Answer 8

so that they can blend easily without having a lot of heat applied to the enzyme

Question 9

why must everything be cool?

Answer 9

heat denatures the enzymes, and the cold slows the reaction

Question 10

why use distilled water

Answer 10

so that the ions in regular water dont mess with the results

Question 11

why was the cheesecloth used?

Answer 11

gets rid of the starch that could deflate the results

Question 12

why is the tube overflowed

Answer 12

so there would be no oxygen to start the reaction, because oxygen is a reactant

Question 13

enzymatic reaction for catecholase

Answer 13

catechol + 1/2 O2 —(catecholase)–> benzoquinone + H2O

Question 14

why is it blended in bursts?

Answer 14

so that the blades dont heat up the mixture and denature the proteins