Mitochondria And Chloroplast Essay

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1) A phospholipid is composed of a fatty acid chain and a phosphate group head. The phosphate group head causes that half of the molecule to be polar while the fatty acid chains remain nonpolar, or hydrophobic. These phospholipids make for good membranes because they can create a barrier between aqueous solution and various other types of solutions. This is efficient when placed in water because the hydrophilic heads create a barrier protecting the hydrophobic tails from the aqueous solution which creates two different environments.
2) A) The human body break down carbohydrates into glucose molecules through hydrolysis these glucose molecules are good for quick energy and proteins are good for repair and long term energy but when in excess these two molecules are stored as fats and oils for later use.
B) This is good for some animals such as whales because they use this fat to insulate their bodies. It is helpful in humans because our fat cushions our organs and protects them from injury.
3) Cooking disinfects food by denaturing the proteins that cause one to become sick. The high temperatures that we bake or broil our food …show more content…
This theory states that mitochondria and chloroplast were once free living bacteria and that ancient eukaryotic cells engulfed. The theory sounds like what it means an internal (endo) symbiotic relationship (symbiosis). The evidence supporting this theory include the fact that both mitochondria and chloroplast reproduce by pinching membranes together and pinching apart to create two new cells, similar to how bacteria reproduce. Also the fact that both contain their own personally genetic information that is not membrane bound also like bacteria. And finally that these organelles can grow and move around freely inside cell they seem independent and according this theory they practically

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