Cell and molecular biology Gerald Karp 7th edition Actual Exam Questions With Answers

Cell and molecular biology Gerald Karp 7th edition Actual Exam Questions With Answers Robert Hooke - ANSWER- 1665 - English Microscopist - Studied cork. 1st to describe cell; called chambers in corks cells (cellular) since they reminded him of cells occupied by monks living in a monastery; They were actually empty cell walls, the remains of dead cells. Anton van Leeuwenhoek - ANSWER- () Dutch; first to describe living single cells 200 years later - ANSWER- 1830s Full & widespread of importance of cells realized Matthias Schleiden - ANSWER- Botanist (1838) claimed all plant tissues composed of cells; described how plant embryos arise from a single cell Theodo Schwann - ANSWER- Zoologist (1839) - claimed all animals tissues composed of cell; plants & animals similar Schwann - ANSWER- Who proposed the first two tenets of Cell Theory 1. All Organisms are composed of one or more cells 2. The cell is the structural unit of life for all organisms Rudolf Virchow - ANSWER- German pathologist (1855) added third tenet of Cell Theory derived from his cell division observations; it ran counter to Schleiden-Schwann view of cell origins 3. Cells can arise only by division from a preexisting cell Cell Theory - ANSWER- 1. All organisms are composed of one or more cells 2. The cell is the structural unit of life for all organisms 3. Cells can arise only by division from a preexisting cell. Basic Property of Cells - ANSWER- Life - Cells are the smallest units to exhibit life; plant and animal cells when removed from organism can live in culture in laboratory Basic property of Cells - ANSWER- Cells are highly complex and organized Basic property of Cells - ANSWER- Cells possess genetic program & the means to use it (a blueprint); encoded in collection of genes in DNA