Semester 1 Exam REG

Front

What is the function of the enzyme lipase?

Back

Lipase is an enzyme produced in the pancreas that helps digest fats by breaking them down into fatty acids and glycerol.

Front

What are the products of fat digestion by lipase?

Back

Fatty acids and glycerol.

Front

What is the significance of pH in chemical reactions?

Back

pH measures the acidity or basicity of a solution, which can affect the rate and outcome of chemical reactions.

Front

What happens to pH when NaOH is added to a solution?

Back

Adding NaOH, a strong base, increases the pH of the solution, making it more alkaline.

Front

What safety precautions should be taken when wearing contact lenses in a laboratory?

Back

You should advise your science instructor that you wear contact lenses to ensure proper safety measures are taken.

Front

What is a monomer in the context of fats and oils?

Back

A monomer of fats and oils is a basic building block, such as glycerol or fatty acids, that combines to form larger molecules.

Front

How do you determine the amount of NaOH added based on pH?

Back

The amount of NaOH added can be determined by measuring the resulting pH; for example, a pH of 4.00 corresponds to 26 mL of NaOH.

Front

What is the pH scale?

Back

The pH scale ranges from 0 to 14, with 7 being neutral, below 7 being acidic, and above 7 being basic.

Front

What is the role of enzymes in digestion?

Back

Enzymes speed up chemical reactions in the body, including the breakdown of food into absorbable nutrients.

Front

What are the characteristics of a strong acid?

Back

A strong acid completely dissociates in water, producing a high concentration of hydrogen ions (H+).