- What is the equation for Cellular Respiration?
C6H12O6 + 6O2 --> 6CO2 +6H2O + Energy(ATP + Heat)
- What are the 3 stages of cellular respiration?
Glycolysis, citric acid cycle, oxidative phosph
orylation: electron transport and chemiosmosis.
- How many ATP glycolysis produces?
2 ATP
5 Main Facts:
- Electrons lose very little of their potential en
ergy when they are transferred from glucose to
NAD+.
- One catabolic process, fermentation, is a partial degradation of sugars that occurs without the use of oxygen.
- The most prevalent and efficient catabolic pathway is aerobic respiration, in which oxygen is consumed as a reactant along with the organic fuel.
- The term cellular respiration includes both
aerobic and anaerobic processes.
- In redox reaction, the loss of electrons from one substance is called oxidation.
Diagram:
This is a methane combustion as an energy-yielding redox reaction. The energy released from the reaction to the surroundings due to the electrons lose potential energy when they end up being shared unequally. They also spending more time around the electronegative atoms sucj as oxygen.
Summary
Living cells require transfusions or energy from outside sources to carry out their function and tasks. In order to finish those tasks, living cell need to run through a few process which includes cellular respiration. Cellular respiration consists of both aerobic and anaerobic processes.
In cellular respiration, glycolysis, citric and cycle, oxidative phosphorylation: electron transport and chemiosmosis are the three main stages. In addition, the electron carrier in cellular respiration is FADH2.
Video
10 Key terms:
- Electron transport chain: a sequence o electron carrier molecules that shuttle electrons during the redox reactions that release energy used to make ATP.
- Glycolysis: the splitting of glucose into pyruvate.
- Acetyl CoA: acetyl coenzyme A; the entry compound for the citric acid cycle in cellular respiration, formed from a fragment of pyruvate attached to a coenzyme.
- Cytochromes: an ion containing protein that is a component of electron transport chains in the mitochondria and chloroplasts.
- ATP synthase: a complex of several membrane proteins that provide a port through which protons diffuse.
- Chemiosmosis: an energy coupling mechanism that uses energy stored in the form of a hydrogen ion gradient across a membrane to drive cellular work, such as the synthesis of ATP.
- Alcohol fermentation: glycolysis followed by the conversion of pyruvate to carbon dioxide and ethyl alcohol.
- Latic acid fermentation: glycolysis followed by the conversion of pyruvate to lactate, with no release of carbon dioxide.
- Obligate anaerobe: an organism that only carries out fermentation or anaerobic respiration.
- Facultative anaerobic: an organism that makes ATP by aerobic respiration if oxygen is present but that switches to anaerobic respiration or fermentation if oxygen is not present.
No comments:
Post a Comment