Flashcards in Energy for biological processed Deck (7)
The process by which energy, in the form of light (photon), is used to build up complex organic molecules eg glucose.
The process by which organic molecules such as glucose are broken down into smaller inorganic molecules eg CO2 and H2O.
Equation for photosynthesis
6CO2 + 6H2O C6H12O6 + 6O2
Equation for respiration
C6H12O6 + 6O2 --> 6CO2 + 6H2O
Need for energy
- active transport (eg for sucrose loading into sieve tube cells, uptake of nitrates by root hair cells)
- anabolic reactions (eg building of polymers like proteins, polysaccharides, nucleic acids)
- movement (eg by cilia, flagella, or contractile filaments in muscle cells)
Importance of C-H bond
Bond energy = either exothermic or endothermic
Large molecules like glucose require less energy to be broken, while small inorganic molecules like CO2 and H2O require a lot of energy in order to be broken.