BIOB34H3 Lecture Notes - Lecture 9: Hydrophile, Cell Nucleus, Lactase
Document Summary
An animal"s work: use chemical energy to decrease entropy, both by synthesizing new molecules and preventing electrochemical equilibrium. Identify the nutrients animals need for survival: differentiate between different feeding and digestive strategies and explain the importance of symbiosis in feeding and digestion, describe how hydrophilic and hydrophobic molecules get absorbed. Animals can synthesize a lot such as: carbohydrates, proteins, lipids, nucleic acids. Vitamins: vitamins are molecules that animals require small amounts of but which they can"t synthesize themselves. Minerals: many minerals (eg sodium, iron, zinc, etc. ) are also essential nutrients. There are many different strategies for feeing, but all must find a way of obtaining essential nutrients and energy. To get the necessary molecules into their cells animals have to break down the food into molecules that their cells can actually absorb. *two important strategies for breaking down food: fermentation via symbiotic microbes, digestion via enzymes.
