Question | Answer |
What is the difference between science and technology? | Science is the systematic study of creation using methods based on observation and experimentation. Technology is the application of science (ex: studying the interactions between fungi and bacteria led to the discovery of penicillin) |
What are the 3 key elements of the cell theory? | 1. All living things are composed of one or more cells. 2. A cell is the basic unit of life in all living things. All of the chemical reactions of a living organism occur within its cells. 3. All cells come from other cells. |
How do plant and animal cells differ? | Plant - large and rectangular, have a cell wall
Animal - small and oval, don' have cell walls |
What is the difference between cell theory and spontaneous generation theory? | SG - Theory that living things can develop from nonliving matter (ex. maggots on meat) Cell theory - foundation of modern biology - all cells come from other cells |
What is the primary source of energy for the earth? | The sun |
What did Louis Pasteur prove? | His experiments with bacteria contradicted the theory of SG. Let to the theory that germs infect people. He developed pasteurization - the heat-treatment process that kills disease causing microorganisms in food and beverages like milk. |
Are all cells microscopic? | No. Most are, but some can be 3 m long (in a giraffe's leg). |
What are the 7 major categories scientists use to classify living things? | Kingdom, phylum, class, order, family genus, species. |