Chapter 4 Test A
What molecule carries chemical energy that cells use for their functions a. ADP b. ATP c. NAD+ d. NADP+
b. ATP
Which of the following directly provides the energy needed for cell functions a. a phosphate group is removed from ATP b. ADP loses a phosphate group c. electrons are passed to proteins d. oxygen picks up electrons
a. a phosphate group is removed from ATP
Which of the following molecules found in the food we eat is most commonly broken down to make ATP? a. carbohydrates b. lipids c. proteins d. vitamins
a. carbohydrates
Which of the following is a product of the Krebs cycle a. carbon dioxide b. oxygen c. lactic acid d. glucose
a. carbon dioxide
Which process is best represented by the following chemical equation -> sugars+oxygen->carbon dioxide +water a. cellular respiration b. photosynthesis c. glycolysis d. fermentation
a. cellular respiration
Before cellular respiration, glucose must be broken down by the process of a. photosynthesis b. glycolysis c. electron transport d. fermentation
b. glycolysis
The part of cellular respiration that needs oxygen takes place inside the a. nucleus b. mitochondria c. thylakoid d. cytoplasm
b. mitochondria
Where in plant cells are the energy-absorbing molecules for photosynthesis located? a. stroma b. thylakoids c. ATP synthase d. mitochondria
b. thylakoids
Which of the following is a reactant in photosynthesis a. O2 b. C6H12O6 c. CO2 d. COOH
c. CO2
An electron transport chain that produces ATP is part of both cellular respiration and a. glycolysis b. fermentation c. photosynthesis d. the Krebs cycle
c. photosynthesis
What happens to the sugars that are made during photosynthesis a. they move directly into an electron transport chain b. they go back into the Calvin cycle c. they can be used for cellular respiration d. they make ATP by bonding together
c. they can be used for cellular respiration
In which process is lactic acid formed when there is not enough oxygen present for cellular respiration to take place? a. ATP synthase b. photosystem I c. glycolysis d. fermentation
d. fermentation
Chemosynthesis is a process through which some organisms use energy from chemicals in their environment to build sugars in the absence of a. ATP b. water c. glucose d. sunlight
d. sunlight