Plants require oxygen to breakdown glucose in the mitochondria. The total amount of energy released is very high. The end products formed are carbon dioxide, water and energy. The process of cellular respiration is a redox reaction. The oxygen molecule is reduced and glucose oxidised. Plants undergo respiration to provide energy that is used during photosynthesis. The manufacture of food by plants requires energy. Highly active and dividing cells have more mitochondria with abundant cristae to provide enough energy.
A membrane is made of amphipathic molecules with the hydrophobic part pointing to the lumen and cytosol and the hydrophobic part (much bigger makes up most of the membrane) in the middle, the protein chains that are embedded in the membrane are thus mostly hydrophobic because the membrane is mostly hydrophobic and like likes like
The biosphere is everything that makes up life like plants and animals for instance but ecosystem is all the living and nonliving factors that affect the area hope this helps
