BIOA02H3 Chapter Notes - Chapter Module 2: Sister Chromatids, Nuclear Membrane, Chyme
6 Feb 2018
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Mouth: grinds food into small bits + saliva. Tongue: builds a ball of food and moves food around. Uvula: prevents food from entering the pharynx when we swallow. Stomach: inner folds called ruggae to increase surface area and to have acids for digestion. Gastric glands: releases gastric juices of ph 2. Small intestine: more surface area and salive to digest food. Duodenum: first 30 cm, most folds and villi and intestinal juices. Appendix: loose end that hangs on the end of the large intestine. Rectum: canal that stores feces to the anus. Mechanical digestion: mouth, jaw, teeth: make smaller particles. Chemical digestion: acids and enzymes to digest foods. Hydrolysis: insertion of a water molecule in between a chain to break it. Dna: molecule inside nucleus that gives instructions to make proteins etc. Base pair : at purines 2 rings. Base pair: cg purimidines 1 ring. Dna twists itself, then on histones, then histones twist to form chromatids.
