Bio Unit 1 Cumulative Practice

Molecules that have a charge, such as water, are ______.

• Polar

• Nonpolar

Which of the following is NOT one of the four biological macromolecules?

• Proteins

• Glucose

• Carbohydrates

• Nucleic Acids

• Lipids

Which of the following shows the correct for of a hypothesis statement in a study designed to test which type of snack is the best pre-workout snack?

• Snacks are good before a workout.

• The high protein snack will help workout performance.

• If an athlete eats a high protein snack before a workout, then he will be able to complete more push-ups than an athlete who at a high carbohydrate snack.

• If you eat a snack 30 minutes before a workout, then your workout will be easier.

You want to know if a high protein snack, a high carbohydrate snack, a high lipid snack, or no snack is the best type of snack to have before a workout. Each Monday for the next 4 Mondays, you will eat one of the snacks and complete the same workout 30 minutes after you finish the snack. Then you will measure how many push-ups you can complete in 5 minutes. What is the dependent variable?

• Number of push-ups completed

• Type of snack eaten

• Each Monday

• 30 minutes

You want to know if a high protein snack, a high carbohydrate snack, a high lipid snack, or no snack is the best type of snack to have before a workout. Each Monday for the next 4 Mondays, you will eat one of the snacks and complete the same workout 30 minutes after you finish the snack. Then you will measure how many push-ups you can complete in 5 minutes. What is the independent variable?

• Number of push-ups completed

• Type of snack eaten

• Each Monday

• 30 minutes

You want to know if a high protein snack, a high carbohydrate snack, a high lipid snack, or no snack is the best type of snack to have before a workout. Each Monday for the next 4 Mondays, you will eat one of the snacks and complete the same workout 30 minutes after you finish the snack. Then you will measure how many push-ups you can complete in 5 minutes. What is the control group?

• High protein snack

• High carbohydrate snack

• High lipid snack

• No snack

You want to know if a high protein snack, a high carbohydrate snack, a high lipid snack, or no snack is the best type of snack to have before a workout. Each Monday for the next 4 Mondays, you will eat one of the snacks and complete the same workout 30 minutes after you finish the snack. Then you will measure how many push-ups you can complete in 5 minutes. Which of the following would NOT be a constant?

• Type of snack

• Workout in same location

• Workout each Monday

• Wait 30 minutes after snack to work out

You want to know if a high protein snack, a high carbohydrate snack, a high lipid snack, or no snack is the best type of snack to have before a workout. Each Monday for the next 4 Mondays, you will eat one of the snacks and complete the same workout 30 minutes after you finish the snack. Then you will measure how many push-ups you can complete in 5 minutes. Which of the following is NOT a potential source of error?

• You naturally get into better shape each week

• You miscount your push-ups one week

• You eat a different snack each week

• You forget to start the timer right away after finishing your snack