The Image Below Diagrams the Action of an Enzyme

question 50

Multiple Choice

The image below diagrams the action of an enzyme.Notice that the enzyme is depicted as being more tightly wrapped around the substrates in step 2 than it is in step 1.Why is this?

• A)When a substrate locks into the active site of an enzyme,the enzyme changes shape to mold itself around the substrates.
• B)Generally,the size of a substrate is larger than the size of the active site into which it must fit.When the substrate enters the active site,the active site must stretch to fit.
• C)Before catalysis can occur,a substrate must change its shape so that it fits into the active site of the enzyme more precisely.
• D)Most active sites are only designed to hold one substrate.In this image,two substrates enter the active site,creating a tighter fit.

Recognize the importance of structural polymers such as lignin in plant evolution and support.

Understand the contributions of ancient plants to the formation of coal and the geological history of Earth.

Understand the classification and symptoms of different sexual dysfunctions and disorders according to DSM-5.

Recognize the physical and psychological treatment modalities for sexual dysfunctions.

---

Definitions:

Peacocking

Peacocking refers to the act of extravagant dressing or behavior undertaken by a person in order to attract attention from others, much like a peacock displays its feathers.

Dressing With Flair

The act of choosing and coordinating clothing and accessories with creativity and style.

Squeeze Technique

A sexual technique intended to delay ejaculation by squeezing the penis.

Blood Flow

The continuous circulation of blood through the heart and vascular system, delivering oxygen and nutrients to tissues and removing waste products.