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Bio Lab Test 1
| Question | Answer |
|---|---|
| What chemical is used to test for protein? | Biuret |
| What chemical is used to test for starch? | Iodine |
| What chemical is used to test for simple sugars? | Benedict Solution |
| What was used to test for lipids(fats)? | Paper Towel |
| What indicated a positive test for fats? | Greasy Spot |
| For iodine, what indicated a positive test result? | Blue-Black |
| For iodine, what indicated a negative test result? | Brown |
| For Biuret, what indicated a positive test result? | Purple |
| For Biuret, what indicated a negative test result? | Blue |
| For Benedict's Solution, what indicated a positive test result? | Green to Orange |
| For Benedict's Solution, what indicated a negative test result? | Blue |
| When testing for biomolecules what needed to be heated to see a change? (bubbling pot) | Benedict's Solution |
| What are the basic biological units for all living things | Cells |
| Why are the chloroplasts in the Elodea cells green? | Chlorophyll |
| What is the process through which chloroplasts manufacture food? | Phoyosynthesis |
| What is the name of the carbohydrate that potatoes cells store in the leukoplasts? | Starch |
| What chemical was used to detect the stain the starch | Iodine |
| What other cells are usually seen on the cheek smear that are prokaryotic cells? | Bacteria cells |
| What type of tissue are cheek cells? | Epithelium |
| What are two types of blood cells? (Scientific name) | Erythrocytes and Leukocytes |
| What is another name for blood cells? | Vascular Tissue |
| What are the extensions of cytoplasm called? | Cell Processes |
| What is the dark body in the center of a neuron? | Nucleus |
| What was used to represent the plasma membrane of a cell? | Dialysis Tubing |
| What occurs when you have molecular movement from areas of high concentration to low concentration? | Diffusion |
| What is a liquid composed of a mixture of two or more substances called? | A solution |
| What is the dissolving agent of any solution (like water) called? | The Solvent |
| What is the name of a substance(like salt) that dissolves in any solution? | Solute |
| What is the name of a solution with a low ersolute concentrate? | Hypotonic |
| What is the name of a solution with a higher solute concentrate? | Hypertonic |
| What is the name of a solution with the same solute concentrate? | Isolatonic |
| What is it called when the cell shrinks due to osmosis in a hypertonic environment? | Plasmolysis |
| What solute concentrate did cells typically have? (percentage) | 3%-5% |
| What is the microscope with two eye holes? | Stereo microscope |
| What is the microscope with one eye hole? | Compound Microscope |
| What is the highest total magnification possible with a stereoscope? | 40x |
| When viewing transparent objects with a stereo microscope it is best to use what light? | Transmitted |
| When viewing opaque objects with the stereo microscope it is best to use what light? | Reflected |
| What do you rotate to go from 2x to 4x? (A part of the stereo microscope) | Body Tube |
| What is the magnifying power of the ocular (eyepiece)? | 10x |
| What is the lense at the bottom of the body Tube called? | Objectives |
| What is the total magnification when using the scanning lenses? | 40x |
| Total magnification with low power lenses | 100x |
| Total magnicafyion when using high power lense? | 400x |
Created by:
Storey
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