BIO 311C - SATA - EXAM 1-Solved

Why study cellular and molecular biology? - ANSWER-The connecting basis of all life is at the cellular and molecular level. DNA, RNA, proteins and the cellular mechanisms behind each of these form the fundamental basis of life. Many biological phenomena are better understood at the biochemical and molecular level. What are the 8 emergent properties of life? - ANSWER-Reproduction Growth and Development Order and Structure Metabolism Respiration Response to environmental stimuli Adaptation and evolution Autonomous movement What is a model system? - ANSWER-Because there are millions of living organisms, and we cannot study each one individually, so we use these selected organisms to study the mechanisms of life. It is a representative organism or cell type used for experiments. They are easy to grow, manipulate, and study. What are some common examples of model systems among prokaryotes? - ANSWER-- E. coli - Salmonella What are some common examples of model systems among eukaryotes - plants? - ANSWER-• Arabidopsis • Corn • Rice What are some common examples of model systems among eukaryotes - fungi? - ANSWER-• Yeast What are some common examples of model systems among eukaryotes - animals? - ANSWER-• Fruit fly • Nematode • Mouse • Zebra fish • HeLa cells (human cell lines) In vivo - ANSWER-Experiments used to study physiology, ecology of organisms under living conditions. Ex: rats, rabbits, plant tissue culture, etc. Can be holistic or reductionist