Bio100Practice_Exam_1_Key_S04

Bio100Practice_Exam_1_Key_S04 - Biology 100 Spring 2008...

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1 Biology 100 Truesdale Spring 2008 PRACTICE EXAM 1 KEY Correct answers are in BOLD. 1. The chemical conversion of food molecules into useable energy and building materials is referred to as ______. a. homeostasis b. metabolism c. adaptation d. phosphorylation e. none of these 2. In proteins, amino acids are linked together by a type of chemical bond called a ________ bond. a. ionic b. hydrogen c. peptide d. high energy phosphate e. junk 3. Plant cells have pigment-containing organelles called ______________. a. central vacuoles b. cilia c. ribosomes d. plastids e. vesicles 4. In cells, polysaccharides can be broken down into monosaccharides which, in turn, can be broken down into carbon dioxide, water and energy. This is an example of a _________pathway . a. biosynthetic b. degradative c. photosynthetic d. meiotic e. replication 5. Atoms that have lost or gained electrons are called “______________.” a. compounds b. molecules c. ions d. peptides e. nucleotides 6. The process by which water molecules move from an area of high concentration through a membrane to an area of low concentration is called ________________. a. active transport b. exocytosis c. osmosis d. endocytosise. cytokinesis 7. In aerobic respiration, the vast majority of the ATP molecules generated comes from _____________.
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Bio100Practice_Exam_1_Key_S04 - Biology 100 Spring 2008...

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