Biotechnology 1st Semester Final Review

Front

What are the primary building blocks of enzymes?

Back

proteins

Front

How do enzymes facilitate chemical reactions?

Back

by lowering the energy barrier.

Front

Why does enzyme activity decrease at high temperatures?

Back

denatures the enzyme, altering its active site.

Front

To avoid contamination, how should you hold a micropipette when not in use?

Back

Vertically to prevent contamination.

Front

What is the volume setting on the micropipette shown in the image?

Back

67 uL

Front

How many microliters are in 1 mL?

Back

1000

Front

What is the volume setting on the micropipette shown in the image?

Back

2.5 µL

Front

What is the volume setting on the micropipette shown in the image?

Back

970 µL

Front

For precise measurements, always align the pipette tip with the liquid surface at

Back

eye level.

Front

How many GRAMS of sodium chloride will you need to weigh out if you are preparing 250 mL (0.25 L) of 50 mg/mL sodium chloride solution?

Back

1.25 grams