Local Final Exam Review

A scientific ____________ is a broad explanation for events that is widely accepted as true.

• law
• theory
• observation
• method

How is an average calculated?

• By picking the middle number in a set of data values

• Finding the most frequent number in a set of data values

• Adding all of the data values and dividing by the number of values

• Subtracting the smallest number from the largest number

A student gathered data from an experiment on plant growth. To make sense of this data, what should the student do?”

• Use it to generate a hypothesis

• Convert the data into binary

• Remove data that do not support the conclusion

• Organize the data in a table or graph

What is the purpose of gel electrophoresis in biology?

• To heat biological samples

• To separate and DNA fragments by size

• To measure pH levels in a solution

• To observe plant growth patterns

What can paper chromatography be used for?

• Separating colors in ink

• Testing purity of substances

• Analyzing plant pigments

• All of the above

Which part of an enzyme attaches to the substrate in the lock and key model?

• Insulator

• Inhibitor

• Active site

• Adaptor

The function of a protein is largely determined by its

• Mass

• Shape

• Color

• Density

Which of the following is a product of the digestion of starch?

• Glucose

• Amino Acids

• Fatty Acids

• Nucleic Acids

In a lab experiment, if an amber colored iodine indicator turns blue-black, what does it indicate?

• The absence of starch

• The presence of glucose

• The presence of starch

• The solution is neutral

Which organelle is primarily responsible for regulating osmosis in animal cells?

• Endoplasmic reticulum

• Lysosome

• Cell membrane

• Ribosome