Cellular Energy- Biology
Before cellular respiration, glucose must be broken down by the process of
glycolysis
What is the name of the process that breaks glucose down into the pyruvate that is used in cellular respiration?
glycolysis
The water molecules labeled A in Figure 4.1 are going to the thylakoids to take part in which process?
light-dependent reactions
The breakdown of which of the following provides the largest number of ATP per molecule?
lipids
The part of cellular respiration that needs oxygen takes place inside the
mitochondria
Chemosynthesis is a process through which some organisms use energy from chemicals in their environment to build sugars in the absence of
sunlight
Where in plant cells are the energy-absorbing molecules for photosynthesis located?
thylakoids
Which of the following is a reactant in photosynthesis?
C 02
Which of the following statements is true of ATP?
It releases energy when it loses a phosphate group
An electron transport chain that produces ATP is part of both the cellular respiration process and
Photosynthesis
Which of the following molecules found in the food we eat is most commonly broken down to make ATP?
carbohydrates
Which of the following is a product of the Krebs cycle?
carbon dioxide
Which process is best represented by the chemical equation C6H12O6 + 6O2 --> 6CO2 + 6H2O ?
cellular respiration
Which process would bacteria living near a heat vent on the ocean floor use to build carbon-based molecules, such as sugars?
chemosynthesis
Which of the following directly provides the energy needed for cell functions?
A phosphate group is removed from ATP.
What molecule carries chemical energy that cells use for their functions?
ATP
Which of the following reactions provides the chemical energy for most cell functions?
ATP - P ADP
Which process is best represented by the following chemical equation? sugars + oxygen -> carbon dioxide + water
Cellular respiration
In which process is lactic acid formed when there is not enough oxygen present for cellular respiration to take place?
Fermentation
What happens to the sugars that are made during photosynthesis?
They can be used for cellular respiration
