A Given Enzyme

question 62

Multiple Choice

A given enzyme

• A)can be used for many different kinds of chemical reactions.
• B)is permanently changed during a chemical reaction.
• C)has a special site where the products bind before the reaction begins.
• D)lowers the activation energy of a particular reaction.

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Definitions:

Compressed Air

Air that is pressurized and contained under greater pressure than the atmosphere, used in various tools, machines, and for cleaning or inflating purposes.

Bicycle Hand/Foot Pump

A manually operated device used to inflate bicycle tires by pushing air into them through a hose and valve system.

Cardboard Tube

A cylindrical form made of cardboard, often used as a core for winding materials like paper towels, fabric, or as packaging for shipping.

Helium Air Balloon

A balloon filled with helium gas, which is lighter than air, causing the balloon to float.