Chapter 6; Textbook Flashcards
What is bioenergetics?
How scientists discuss the concept of energy flow
Define the cell’s metabolism
All of the chemical reactions that transpire inside cells
What is carbohydrate metabolism?
A classic example of the many cellular processes that use and produce energy
Why do living things consume sugar as a major energy source?
Because sugar molecules have considerable energy stored within their bonds
What is sugar stored as?
Starch or glycogen
What is required to synthesize a glucose (sugar) molecule during photosynthesis?
Solar energy
What is broken down into glucose to supply ATP molecules?
Sugar
What is the sun’s role in photosynthesis?
Light energy from the sun initially transforms into chemical energy that temporarily stores itself in the energy carrier molecules ATP and NADPH
What does photosynthesis use the stored energy in ATP and NADPH to do?
Build one glucose molecule from 6 molecule of CO2
Under ideal photosynthesis conditions, energy from __ _ATP molecules is required to synthesize one glucose molecule
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Define anabolism
A type of metabolism; building pathways
Define catabolism
A type of metabolism; breaking down pathways
What do anabolic pathways require and why?
An input of energy to synthesize complex molecules from simpler ones
What’s are examples of anabolic pathways?
Synthesizing sugar from CO2, synthesizing large proteins from amino acid building blocks, and synthesizing new DNA strands from nucleic acid building blocks
What’s an example of a catabolic pathway?
One glucose molecule storing enough energy to make 36-38 molecules of ATP
