Lab Safety & Microscope Intro
.1. Label the following pieces of microscope:
Ocular lenses
Objective lenses
Stage
Light source
Adjustment knob
Diaphragm
Homework Answers
Lab activities and worksheets Read through this section before you get to lab so you are...
Lab activities and worksheets Read through this section before you get to lab so you are aware of what you will be doing for this lab. Microscope labeling It is important to know the structure of something in order to know how it works and how to use it. Use the following list of parts of a compound microscope to label the diagram. Be sure to understand the functions of each part. Ocular: this is the lens at the top...
1-7 please 1-When carrying a microscope to and from your bench your hands should be placed...
1-7 please
1-When carrying a microscope to and from your bench your hands should be placed a) b) c) d) one hand on the arm and one under the base both hands on the arm only one hand should be used under the base both hands under the stage 2-True or False Primary containment is protecting the immediate surroundings and personnel in a laboratory against infectious agents. 3-The lens is located at the top of the instrument and consists of...
Which of the following statements are correct?
Which of the following statements are correct? The three objective lenses we have in the lab have individual magnifications of 4x, 10x and 400x If the total magnification is 400X and the ocular lens is 10x, then the objective lens used must be 400x. Total magnification equals objective lens magnification times ocular lens magnification. The fine adjustment knob is only used when the microscope is on the low or high power, that is you should only use the fine adjustment knob at magnifications of...
• Differentiate between a compound microscope and a stereomicroscope (dissecting microscope) in terms of: i. Magnification...
• Differentiate between a compound microscope and a stereomicroscope (dissecting microscope) in terms of: i. Magnification (which of the two microscopes has a higher magnification); ii. Working distance (which of the two microscopes has a larger working distance) – look in Lab Protocol section to determine definition of working distance; iii. Type of image formed by microscope (one of the microscope produces an erect image while the other produces an inverted image) – look in Lab Protocol section to determine...
help me Focusing the Mlerescope 1. Turn the nosepiece until the lowest power obiective lens (4x...
help me
Focusing the Mlerescope 1. Turn the nosepiece until the lowest power obiective lens (4x - shortest objective) is in straight alignment over the stage. Turn until you feel or hear a click. 2. Always begin focusing with the lowest power obiective lens-4X (scanning power). 3. Place a slide with the word "ro" on the stage, clin in place Center the word "roo" in the middle of the stage over the light source aperture. 4. With the course adjustment...
what is the function of each of the following parts of a compound and dissecting microscope?...
what is the function of each of the following parts of a compound and dissecting microscope? ocular objectives condense riris diaphragm stage coarse adjustment fine adjustment
1. The _______ system is comprised of the light source, condenser, iris, and diaphragm
1. The _______ system is comprised of the light source, condenser, iris, and diaphragm 2. The _______ system is comprised of the body tube. coarse adjustment, fine adjustment? 3. The _______ system is comprised of the ocular and objectives? 4. The _______ system is comprised of the base, arm, and stage? Calculate the total magnification below for a microscope with a 10 times ocular magnification: For example, the ocular magnification (10 times) is multiplied by the objective (4 times) to give the total magnification of 40 times (10 x...
3. In a bright-field compound microscope, starting from the illuminator, follow the pathway of light: a....
3. In a bright-field compound microscope, starting from the illuminator, follow the pathway of light: a. The first lens that provides magnification of the image is the c lor lens. b. The lens that further enlarges the image ten more times is the low power nel lens. 4. Open the iris diaphragm all the way while using the low power objective. What happens to the field of view and the quality of the image? Now close the iris diaphragm all...
C. Answer the following questions as they relate to the microscope. What is the difference between...
C. Answer the following questions as they relate to the microscope. What is the difference between magnification and resolution? Why are both necessary for microscopy? What is the function of the oil used with the oil-immersion lens? What is the effect of omitting it? Why is it imperative to promptly remove any oil that has accidentally spilled on the other non-immersion lenses? D. Examination of Living Bacteria From your observation of the hay infusion, draw and describe what you have...
ur eyes. Each new lab day, as you begin to study your arst slide, repeat this...
ur eyes. Each new lab day, as you begin to study your arst slide, repeat this procedure, arssm increase or decrease the contrast by adjusting the iris dia- u em opening. Note that the maximum amount of light provides itle contrast. Adjust the aperture until the imageis sharp. littie Move the slide slowly to the right. In what direction does the image in the ocular move? n. Is the image in the ocular inverted relative to the specimen on the...
Lab activities and worksheets Read through this section before you get to lab so you are aware of what you will be doing for this lab. Microscope labeling It is important to know the structure of something in order to know how it works and how to use it. Use the following list of parts of a compound microscope to label the diagram. Be sure to understand the functions of each part. Ocular: this is the lens at the top...
1-7 please
1-When carrying a microscope to and from your bench your hands should be placed a) b) c) d) one hand on the arm and one under the base both hands on the arm only one hand should be used under the base both hands under the stage 2-True or False Primary containment is protecting the immediate surroundings and personnel in a laboratory against infectious agents. 3-The lens is located at the top of the instrument and consists of...
• Differentiate between a compound microscope and a stereomicroscope (dissecting microscope) in terms of: i. Magnification (which of the two microscopes has a higher magnification); ii. Working distance (which of the two microscopes has a larger working distance) – look in Lab Protocol section to determine definition of working distance; iii. Type of image formed by microscope (one of the microscope produces an erect image while the other produces an inverted image) – look in Lab Protocol section to determine...
help me
Focusing the Mlerescope 1. Turn the nosepiece until the lowest power obiective lens (4x - shortest objective) is in straight alignment over the stage. Turn until you feel or hear a click. 2. Always begin focusing with the lowest power obiective lens-4X (scanning power). 3. Place a slide with the word "ro" on the stage, clin in place Center the word "roo" in the middle of the stage over the light source aperture. 4. With the course adjustment...
3. In a bright-field compound microscope, starting from the illuminator, follow the pathway of light: a. The first lens that provides magnification of the image is the c lor lens. b. The lens that further enlarges the image ten more times is the low power nel lens. 4. Open the iris diaphragm all the way while using the low power objective. What happens to the field of view and the quality of the image? Now close the iris diaphragm all...
C. Answer the following questions as they relate to the microscope. What is the difference between magnification and resolution? Why are both necessary for microscopy? What is the function of the oil used with the oil-immersion lens? What is the effect of omitting it? Why is it imperative to promptly remove any oil that has accidentally spilled on the other non-immersion lenses? D. Examination of Living Bacteria From your observation of the hay infusion, draw and describe what you have...
ur eyes. Each new lab day, as you begin to study your arst slide, repeat this procedure, arssm increase or decrease the contrast by adjusting the iris dia- u em opening. Note that the maximum amount of light provides itle contrast. Adjust the aperture until the imageis sharp. littie Move the slide slowly to the right. In what direction does the image in the ocular move? n. Is the image in the ocular inverted relative to the specimen on the...
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