Which Enzyme Activity Would Be Directly Inhibited by the Addition

question 33

Multiple Choice

Which enzyme activity would be directly inhibited by the addition of methotrexate?

• A) thymidine kinase
• B) thymidylate synthase
• C) dihydrofolate reductase
• D) serine hydroxymethyltransferase

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Definitions:

Driven Gear

A gear that is driven by another.

Sector Shaft

A shaft that converts the rotational movement of the steering wheel into the lateral control required for steering the vehicle's wheels.

Peak Pressures

The highest pressures achieved during a process, such as combustion in an engine cylinder.

Hydraulic Steering-assist

A system that uses hydraulic pressure to make steering the vehicle easier, aiding the driver by reducing the effort needed to turn the steering wheel.