Optional OST practice questions and concepts

1. Part A only

• A
• B
• C
• D

2. Part B Only

• A
• B
• C
• D

Tags

NGSS.HS-PS1-5

3.

• A
• B
• C
• D

4. Part A

• A
• B
• C
• D

Tags

NGSS.HS-PS1-5

5. Part B

• A
• B
• C
• D

Tags

NGSS.HS-PS1-5

6. What does the term substrate refer to?

• The part of the enzyme where objects attach
• The part that attaches to the enzyme's active site
• The part that changes the shape of the enzyme
• A kind of lobster based cuisine found only in indigenous Australian food banks.

7. Enzymes are made of

• Carbohydrates
• Lipid
• Protein
• Nucleic Acid

Tags

NGSS.HS-LS1-6

8. What is the most essential characteristic of enzymes that derives from its structure?

• Because enzymes are protein they have the capacity to change shape
• Because enzymes are made of lipids they have the capacity to keep out water
• Because enzymes are made of carbohydrates they have a constant supply of energy available
• Because enzymes are palindromic, they have the ability to swap DNA segments and hybridize new characteristics that are best suited for that given environment

Tags

NGSS.HS-LS1-1

9. Which of the following best describes the role of enzymes in biological reactions?

• a) Enzymes provide energy for the reaction.
• b) Enzymes speed up the rate of the reaction.
• c) Enzymes change the direction of the reaction.
• d) Enzymes prevent the reaction from occurring.

10. Which of the following factors can affect the activity of enzymes?

• a) Temperature and pH
• b) Light intensity and color
• c) Gravity and pressure
• d) Volume and concentration