*NURSING > QUESTIONS & ANSWERS > HESI-A2 BIOLOGY Study questions for biology HESI entrance exam (All)
HESI-A2 BIOLOGY Study questions for biology HESI entrance exam Question Answer List the hierarchic system of organization kingdom, phylum, class, order, family, genus, species The hierarchic ... system of organization is most inclusive (broadest) as _____ and as least as _____. kingdom; species Darwin introduced evolution in ______ 1859 Darwin proposed that current species arose from a process called "____________" decent with modification What substance makes life possible? water __________ of a molecule is the amount of heat necessary to raise the temperature of 1 gram specific heat of that molecule by 1 degree Celsius. Water has a ______ specific heat value high ______ is the ability of a molecule to stay bonded or attracted to another molecule of the same substance. cohesion ________ is the ability of water to bond to or attract other molecules or substances. adhesion What are the 4 most important molecules that are significant in biology? carbohydrates, lipids, proteins, and nucleic acids ______ are long chains, or polymers of sugars. These have main purposes as storage, structure and energy. carbohydrates ______ are also known as fats or fatty acids, phospholipids and steroids. lipids ________ are lipids that are categorized as saturated or unsaturated. fatty acid _______ fats contain no double bonds in their hydrogen tail. saturated ______ fats are solid at room temperature and _____ are liquid. saturated; unsaturated Fats that are generally considered detrimental to health saturated fats _______ is the fatty acid associated with membranes and are precursors to hormones. Steroids ______ are the most significant contributor to cellular function. proteins Proteins are polymers of 20 ________. amino acids ______ are the larges biological molecules. proteins _______ are types of proteins that act to catalyze different [Show More]
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