1) Respiration is best described as a process by which...  a) Necessary nutrients are circulated b) Hydrogen is used to synthesize glucose  c) Chemical energy is converted into a usable form d) Metabolic waste absorbed  2) Which term is defined as all the chemical reactions that are required to sustain life? a) Metabolism b) Nutrition c) Regulation d) Synthesis 3) Which process is a form of autotrophic nutrition? a) Transport b) Fermentation c) Regulation d) Photosynthesis 4) Which statement best describes cellular respiration? a) It occurs in animal cells but not in plant cells. b) It converts energy in food into a more usable form c) It uses carbon dioxide and produces oxygen. d) It stores energy in food molecules. 5) In an Ameba, materials are taken from its environment and then moved throughout its cytoplasm. These processes are known as a) Absorption and circulation b) Food processing and energy release c) Energy release and synthesis d) Coordination and regulation 6) Nutrition involves those activities by which organisms a) Remove cellular waste products b) Obtain and process materials need activities.ed for other c) Exchange gases with their environment d) Absorb and circulate materials 7) Which activity is an example of the life process known as synthesis? a) An organic compound is broken down and energy is released. b) Starch is formed by the chemical bonding of glucose molecules. c) A large molecule is broken down into smaller molecules. d) Oxygen moves into a cell through the cell membrane. 8) Single-celled organisms are able to maintain internal stability because they a) have multiple organ systems b) work with other cells c) contain structures that perform life functions d) carry out photosynthesis to produce food 9) One characteristic of all living things is that they a) Develop organ systems b) Produce identical offspring c) Maintain internal stability d) Synthesize only inorganic matter 10) Excretion is best described as the removal of... a) Metabolic wastes from a cell b) Toxic wastes by the process of cyclosis c) Water molecules from dipeptide hydrolysis d) Undigested material from the digestive tract 11) The life function responsible for the coordination and control of all life activities in an organism is known as a) Regulation b) Excretion c) Reproduction d) Nutrition 12) After eating a meal, blood sugar levels are elevated. The body secretes hormones to help absorb excess sugar into cells and return blood sugar levels to normal. This is an example of a) Excretion b) Synthesis c) Regulation d) Reproduction 13) Which life process is indicated by the arrows in the diagram of an amoeba shown below? a) Digestion b) Fermentation c) Excretion d) Transport 14) Which statement illustrates an exception to the concept that the cell is the unit of structure and function of all living things? a) Viruses contain genetic information but lack other cellular components. b) The cell is a complex "chemical factory." c) Lysosomes contain hydrolytic enzymes. d) Most bacteria are classified as heterotrophic organisms. 15) Which life activity is not required for the survival of an individual organism a) Nutrition b) Reproduction c) Respiration d) Synthesis

Life Functions

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