Human Systems Bio 20 Exam | 177 Questions and Answers(A+ Solution guide)

Salivary glands - Secretes starch digesting enzymes Liver - Manufactures bile that that facilitates digestion of fats Gall bladder - Stores bile till needed Pancreas - Manufactures enzymes to digest macromolecules; secretes bicarbonate to neutralize stomach acid that enters small intestine Mouth - Chews and mixes food with saliva Esophagus - Directs food from mouth to stomach Stomach - Adds acid, enzymes, and fluid; churns mixes, and grinds food to a liquid mass Small intestine - Secretes enzymes that digest macromolecules; absorbs hydrolyzed molecules into blood stream Large intestine - Absorbs water and salts; passes remaining undigested material and some water out of body Rectum - Stores waste prior to elimination Anus - Holds rectum closed; opens to allow elimination Macromolecules - A large, complex assembly of organic molecules; four categories of macromolecules are carbohydrates, lipids, proteins, and nucleic acidsDehydration synthesis - Chemical reaction that results in the formation of a covalent bond between two subunit molecules by the removal of an -OH (hydroxyl) group from one subunit and a hydrogen atom from the other subunit; essentially, a molecule of water (H2o) Is removed)