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Science Review Unit2
-levels of organization-eukaryote vs. prokaryote-plant vs. animal cells-viruses
| Question | Answer |
|---|---|
| subcellular order smallest to largest | atom-element-molecule-macromolecule-organelles |
| organism order smallest to largest | cell-tissue-organ-organ system-orgnism |
| ecological order smallest to largest | population-community-ecosystem-biome-biosphere |
| What are the seven properties of life? | 1.cell org. 2.reproduction 3.heredity 4.growth and development 5.metablolism 6.responsiveness 7.homeostasis |
| If you found something with almost most of the seven properties of life but not all, is it alive? | No because all living things need to have EVERY one of the seven properties. |
| Describe metabolism | Metabolism is the chemical process tht occurs whithin a living organism in order to maintain life (sum of all chemical reactions) |
| what are the two main types of reactions? | catabolism, anabolism |
| Describe homeostasis | a process where an organism maintains a stable envirnonment |
| give three examples of homeostasis | 1.body temperature 2.ph 3.water content |
| What is an organism with one cell called? | Unicellular |
| What is an organism with more than one cell called? | Multicellular |
| What is reproduction? | Production of offspring |
| What are the two types of reproduction | Asexual and sexual |
| What are two types of cells? | Eukaryote and Prokaryote |
| What are the simularities that all cells have in common | 1.cell membrane 2.ribosomes 3.cytoplasm 4.DNA 5.cytoskeleton 6.proteins 7.cells |
| What makes a prokaryote different from a eukaryote? name 5 | 1.Eukaryote has a nucleus 2.prokaryote is unicellular 3.prokaryote are smaller 4.Prokaryote is sexual, eukaryote is asexual 5.Prokaryote is both anaerobic and arobic |
| Plant vs Animal cells: plant cell differences | 1.has a cell wall 2.has chloroplast |
| Plant vs Animal cells: similarities | 1.has a cell membrane 2.has a nucleus 3.has cytoplasm |
| Plant vs Animal cells: animal cell differences | 1.has no cell wall 2.has no chloroplast |
| What is the difference between a heterotroph and autotroph? | A heterotroph gains energy from eating food, while an autotroph gains energy from the sun. |
| What two things happen when magnifcation increases? | 1.The image is more detailed 2.The image becomes larger |
| What knob should be used at high power? And why? | Fine adjustment knob, because you dont want the lens to hit the stage |
| How do you determine total magnification? Write the formula. | eyepiece multiplied by the objective lens = total magnification |
| What is the highest magnification used in class? | 400 |
| Why do you start off at the lowest magnification? | To see the whole image, field of view |
| Describe how the letter e appears through the field of view | Upside down and backwards, because its reflected through the light |
| Are viruses alive? | No |
| Why are viruses not alive? | they lack the seven properties |
| Identify the feature of life that is illustrated by each of the following statements:"That boy shot up five inches in only one year." | growth |
| Identify the feature of life that is illustrated by each of the following statements:"Our cat had a litter of kittens yesterday." | reproduction |
| Identify the feature of life that is illustrated by each of the following statements:"My dog has become much less clumsy now that he is a year old." | development |
| Identify the feature of life that is illustrated by each of the following statements:"Eat a good breakfast and you will be able to run longer." | metabolism |
| Identify the feature of life that is illustrated by each of the following statements:"When that car pulled in the driveway, my cat ran to hide under the porch." | Responsiveness |
| Identify the feature of life that is illustrated by each of the following statements:"That owls night vision allows it to see movement of mice on even the darkest night." | Responsiveness |
| Identify the feature of life that is illustrated by each of the following statements:"Single-celled organisms live in the pond behind school." | cell org. |
| Identify the feature of life that is illustrated by each of the following statements:"Your body normally maintains a temperature of 98.6*F | homeostasis |
Created by:
madcait123
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