BIOA01H3 Lecture Notes - Bioessays, Nuclear Membrane, Asexual Reproduction

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Sept. 14, 2012: how were the organic molecules (amino acids, nucleotides) that define life created, three main hypotheses. Primordial soup: no protective atmosphere to protect from uv light rays, evidence to support this theory is miller"s urey experiment (after one week and organic compounds were found) Read chp 1 (will help with lab), 3, 20, purple pages. Sept. 21, 2012: microfilaments are usually referred to as actin, the cytoskeleton, provides structural integrity to the cell, drives cell motility, forms cell surface structures which probe the environment. Sept. 27, 2012: a decrease in temperature is an increase in desaturase mrna, anabolic consume energy, build, catabolic energy is released, breakdown, to do work is really to cause change. The laws of energy transformation: 1st law energy cannot be created/destroyed, 2nd law every energy transfer or transformation increases the entropy of the universe, (ex. heat lost from a reaction) Biological order and disorder: a characteristic of life is that organisms display order.

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