WorksheetsAP Bio Unit 3 Review
Total questions: 17
Worksheet time: 9mins
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
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
What are the reactants for photosynthesis?
carbon dioxide and oxygen
oxygen and glucose
carbon dioxide and water
ATP and carbon dioxide
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
Which statement about photosynthesis is true?
The light reactions produce ATP and NADPH that are used in the Calvin cycle
The Calvin cycle produces NAD+ and ADP that are then used in the light reactions
The Calvin cycle produces G3P
All of these statements are true
The light reactions take place in the ____________
Cytoplasm
Stroma
Thylakoid
Matrix
The Calvin cycle takes place in the _____________
Cytoplasm
Stroma
Thylakoid
Matrix
Oxygen that is a byproduct of photosynthesis comes from ___________
Glucose
Carbon Dioxide
Water
NADPH
During photosynthesis, where is the concentration of protons built up to create a concentration gradient?
In the cytoplasm
In the stroma
In the thylakoid lumen
There is no proton gradient in photosynthesis
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
What are the products of glycolysis?
Pyruvate, ATP, NADH
Pyruvate, ADP, NAD+
Acetyl CoA and ATP
Ethanol and Carbon Dioxide
What are the electron carriers in cellular respiration?
NADPH
ATP and pyruvate
NADH, FADH2
ATP synthase
The transfer of electrons accompanied by movement of protons to build up a gradient ___________
Happens in photosynthesis only
Does not happen in photosynthesis or respiration
Happens in respiration only
Happens in both photosynthesis and respiration
What is the final electron acceptor for the electron transport chain in respiration?
NAD+
carbon dioxide
Oxygen
glucose
The cytochrome complex in chloroplasts is responsible for pumping protons across the thylakoid membrane. What will happen if this complex stops receiving electrons?
The proton gradient will continue to be built up
No ATP will be generated, so the Calvin cycle will not be able to turn
ATP will continue to be generated in the chloroplast
The Calvin cycle will run without any ATP
