AP Bio Unit 3 exam review

Which of the following would NOT affect the function of an enzyme?

• Change in temperature

• Adding water

• Change in pH

• Change in salinity

 

An enzyme has a competitive inhibitor covalently bonded to its active site. What would be true about this enzyme?

• Increasing the substrate concentration will improve enzyme function

• Increasing enzyme concentration will increase enzyme function

• The enzyme is irreversibly inactivated by the covalent bonding of the inhibitor

• Changing the coenzyme will increase the activity of the enzyme

What is true of the reaction shown in the image?

• Adding more enzyme will increase the reaction rate

• Increasing the temperature will increase the reaction rate

• Adding more substrate will increase the reaction rate

• Increasing the pH will increase the reaction rate

Tags

NGSS.HS-PS1-5

Which statement about ATP is true?

• Energy is released for cellular work when the bond is broken between the second and third phosphates

• It is made up of adenine, deoxyribose and 2 phosphates

• Energy is required to break the bonds between the phosphates

• The bond between the sugar and the phosphates is a high energy bond

How do enzymes catalyze reactions?

• They slow down the movement of molecules

• They lower the activation energy

• They are consumed in the reaction

• They raise the activation energy

Tags

NGSS.HS-PS1-4

What is true of chemiosmosis?

• A proton gradient is built up

• Protons move down their gradient through ATP synthase to make ATP

• Potential energy is stored in the proton gradient

• All of these statements are true

Tags

NGSS.HS-LS1-7

What are the products of glycolysis?

• Pyruvate, ATP, NADH

• Pyruvate, ADP, NAD+

• Acetyl CoA and ATP

• Ethanol and Carbon Dioxide

Tags

NGSS.HS-LS1-7

What are the electron carriers in cellular respiration?

• NADPH

• ATP and pyruvate

• NADH, FADH2

• ATP synthase

Tags

NGSS.HS-LS1-7

What is the final electron acceptor for the electron transport chain in respiration?

• NAD+

• carbon dioxide

• Oxygen

• glucose

Tags

NGSS.HS-LS1-7

The location where the enzyme and substrate bind is the...

• allosteric site

• inhibition site

• reaction site

• active site