Term
| 1.) identify the ph values for an aci neutral or basic sulution a. acid is less than 7. neutral 7 and basic is above 7 |
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Definition
| 2.) name the indicator for glucose a. benedicts solution |
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| 3.) name the indicator for starch. A. iodine |
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Definition
| 4.) what does an indicator do to indicate a positve result? a. a color change |
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| 5.) how do u read the volume of a graduated cylinder? a. the bottom of the meniscus |
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Definition
| 6.) what part of the microscope is used to focus the microscope on low power? on high power? a. low power-coarse adjustment high power- fin adjustment |
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| 7.) what controls the amount of light on a microscope? a. diaphragm |
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Definition
| 8.) wahat is the purpose of staining ? a. to make cell organelles more clear for us to see in the microscope |
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Term
| 9.) how do u determine the total magnification of a compound microscope a. multiply the eyepeice with the objective lens |
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Definition
| 10.) what do you have to do to have a valid experiment? a. control, one variable amd similar results after many trials. |
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Term
| 11.) what is control a. the part of the experiment that does not change |
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Definition
12.) what is an experimental group a. the part of the experiment that changed |
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| 13.) how many items can be different between a control and an experimental group in order for the experiment to be valid a. only the one variable |
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Definition
| 14.) what are some of the safety tips to use in the lab a. goggles apron hair tied up etc |
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Term
| define diffusion they are small enough to fit through the membrane |
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Definition
| starch is too big to fit through the membrane |
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Term
define osmosis a. its the diffusion of water only
a. water moves out of a cell so it shrinks
a. you place a dropper on one side of the coverslip and a paper towel to absorb the liquid coming out
a. distilled water or regular water |
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Definition
transport 1. the movement of molecules from high concentration to low concentration requires no energy is known as diffusion
2. if you place a cell in a solution that has a higher salt concentration than the cell the cell will lose water and shrink
3. if you place a cell in a solution that has a lower salt concentration than cell the cell will gain water and expand (possibly burst) |
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Term
4.define active transport
a. the process of moving substances from low to high with energy
5. the source of energy for active transport is atp.
cells 1 list the organizational levels starting with organelles and ending with organism
a. organelles cells tissues oragn organ system organism |
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Definition
2. list the 3 parts of the cell theopry
a. all cells come from pre- existing cells all living things are made up of cells cells are the basic structure and function of all living things
3. where is the largest amount of dna found
a. the nucleus |
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Term
4. what is the function of the mitochondria
a. to make energy during celluar respiration
5. what are the differences between plant and animal cells
a. plant cells have a cell wall and chloroplast. animal cells have centrioles
6. what are the differences between unicelluar and multicellular. a. unicellualar is one multicellular is many cells |
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Definition
7. what is the function of the chloroplast.
a. the site for photosynthesis |
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