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BW: Enzyme 1/27

Last updated about 3 hours ago

4 Nsɛmmisa

1

1

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

Is the following graph a depiction of an endothermic or exothermic reaction?

endothermic

exothermic

1

1

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

As food travels through the digestive system, it is exposed to a variety of pH levels. The stomach has a pH of 2 due to the presence of hydrochloric acid (HCl), and the small intestine has a pH ranging from 7 to 9. HCl converts pepsinogen into pepsin, an enzyme that digests proteins in the stomach.
Which of the following most likely happens to pepsin as it enters the small intestine?

It becomes inactive.

It begins to replicate.

Its shape changes to engulf large proteins.

Its activity increases to digest more proteins.

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

What point on the graph represents the activation energy?

A

B

C

D

E

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Which line on the graph represents the reaction with an enzyme?

Red line

Black line