Cellular respiration uses glucose and oxygen, which have high levels of free energy, and releases CO2 and water, which have low levels of free energy. Is cellular respiration spontaneous or not? Is it exergonic or endergonic? What happens to the energy released from glucose?

Cellular respiration is spontaneous

Cellular respiration is exergonic

Cellular respiration releases energy that is used to power the organism's life functions

Explanation:

All living organisms require energy for their day-to-day activities. This energy is obtained when the organism breaks down the food they ingest. This process is called CELLULAR RESPIRATION, a process whereby organisms combine glucose (organic food) and oxygen to produce energy, releasing CO2 and water as products.

According to thermodynamics, Free energy denoted by (G) is the energy available to perform activities and it is released during a spontaneous reaction i.e. from a high free energy state to a low one. Hence, cellular respiration is a spontaneous reaction because it releases free energy, making the change in G negative (-).

Also, cellular respiration is said to be an exothermic reaction because it releases energy as heat as opposed to endothermic reactions, which make use of energy e.g photosynthesis.

The energy released during the process of respiration is used to power the organism's cellular functions e.g movement etc.

answer: dinosaur

explanation

their extinction was caused by massive asteroid that fell on earth

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.