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Mr. Ds Science Final
Final Exam for Mr. Ds Genoa MS Science
| Question | Answer |
|---|---|
| What is the function of a nucleus? | Controls the function of a cell. |
| What is the function of the nucleolus? | Produces Ribosome. |
| What is the function of a chromosome? | Controls growth and reproduction. |
| What is the function of a ribosome? | Produces proteins. |
| What is the function of the endoplasmic reticulum? | Transports proteins throughout the cell. |
| What is the function of the golgi complex? | Packages proteins. |
| What is the function of the cytoplasm? | All living material outside of the nucleus. |
| What is the function of a the cell membrane? | Controls movement into and out of the cell. |
| What is the function of a lysosome? | Removes waste from the cell. |
| What is the function of a vacuole? | Stores waste and other raw materials. |
| What is the function of the mitochondria? | Provides energy to the cell and the location for cellular respiration. |
| What is the function of a chloroplast? | The location of photosynthesis in a plant cell. |
| What is the function of a cell wall? | Provides support and protection to plant cells. |
| What is the primary shape of a plant cell and how does this compare to an animal cell? | Plants are rectangular while animals are circular. |
| What process can plant cells do that animal cells cannot? | Plants can perform photosynthesis while animals cannot. |
| Which organelle do plants have only a large one vs. animals have many small ones? | Vacuole |
| What provides plants support and protection but is missing in animal cells? | a cell wall. |
| What is a eukaryotic cell? | a cell with a nucleus such as plant and animal cells. |
| What is a prokaryotic cell? | cells without nucleus such as bacteria. |
| What does the cell theory say about where cells come from? | Cells come from other cells. |
| What does the cell theory say is the basic unit of life? | the cell |
| What is the smallest number of cells needed for an organism to be alive? | one |
| Define diffusion | The movement of particles from high concentration to low concentration |
| Define osmosis | A special case of diffusion involving water |
| Define semi-permeable | A membrane that allows somethings to go through but stops other things |
| What are the 3 rules of diffusion | concentration must be balanced; movement is from high to low concentration; particles must fit through an opening. |
| What is the formula for finding the volume of a regular solid? | length x width x height. |
| How do you calculate the density of a material? | Density = mass / volume |
| When two materials are added together how can you tell which will float and which will sink? | The higher density material will sink. |
| What is matter? | Matter is anything that contains both mass and volume |
| What are the three phases of matter | solid, liquid, and gas |
| Define Solid | state of matter with a fixed volume and shape. |
| Define Liquid | state of matter with a defined volume but will take the shape of its container. |
| Define Gas | state of matter with no fixed volume or shape. |
| What do Solid molecules look like? | Tightly packed molecules with slight vibrations. |
| What do Liquid molecules look like? | Loosely packed molecules and able to slide over one another. |
| What do Gas molecules look like? | Molecules are far apart with little attraction to each other. |
| Define Evaporation | Phase change from a liquid to a gas. |
| Define Condensation | Phase change from a gas to a liquid. |
| Define Melting | Phase change from a solid to a liquid. |
| Define Freezing | Phase change from a liquid to a solid. |
| Define Exothermic | Releases heat during a phase change. |
| Define Endothermic | Gains heat during a phase change. |
| Define Heat | The vibration of particles |
| Idenfity a Similarity between heat and temperature | They are both vibrations of particles |
| Idenfity a Difference between heat and temperature | Temperature can stop changing while heat is always changing. |
| define Molecules | 2 or more atoms that are together |
| define Atoms | single elements. |
| What are the 3 state/phase of matter? | solid, liquid, and gas |
| define Density | mass divided by volume; example of physical property. |
| Define Potential Energy | stored energy |
| Define Kinetic Energy | energy of motion such as push, pull, twist, turn |
| How do you locate areas of high and low kinetic energy? | the longer something falls the faster it goes leading to higher kinetic energy. |
| How do you locate areas of high and low potential energy? | the higher something is the more potential energy it has. |
| What is the Law of Conservation of Energy? | the total amount of energy in a closed system is conserved |
| What are the 5 levels of the organization of life? | cells -> tissues -> organs -> organ systems -> organisms |
| Define speed | ratio of distance:time. |
| How do you calculate speed? | distance divided by time. |
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sdscience6
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