Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 4, Problem 6PL
When preparing a wet mount specimen for viewing, it should be covered with
- clear paper.
- another glass slide.
- a coverslip.
- transparent tape.
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When you are trying to find a specimen, you should use;
The scanning objective
The low/medium power objective
The high power objective
Which of these is NOT a best practice when using, handling, or storing a microscope and microscope slides?
Do not touch the objective lenses.
Store the slides in bright sunlight to prevent mold growth.
Rotate the nosepiece to the lowest objective before storing the microscope.
Keep dust away from the scope by covering it during storage.
When you are finished with a dissection tray And forceps used in dissection of a preserve specimen you should
Chapter 4 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 4 - The human eye cannot perceive objects less than...Ch. 4 - The objective lenses of the compound light...Ch. 4 - Prob. 3PLCh. 4 - Prob. 4PLCh. 4 - Basic lens cleaning is accomplished using water....Ch. 4 - When preparing a wet mount specimen for viewing,...Ch. 4 - The total magnification achieved using a 10...Ch. 4 - Prob. 8PLCh. 4 - Prob. 1.1ACh. 4 - Prob. 1.2A
Ch. 4 - Prob. 2.2ACh. 4 - If a circular object or specimen extends halfway...Ch. 4 - Prob. 3.2ACh. 4 - Prob. 3.3ACh. 4 - Why is it more difficult to measure the diameter...Ch. 4 - What change occurred in the intensity of the light...Ch. 4 - Prob. 3.6ACh. 4 - Prob. 3.7ACh. 4 - Prob. 3.8ACh. 4 - When you moved the ruler away from you, which way...Ch. 4 - Prob. F4.8ACh. 4 - Prob. 4.2A
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- During studying a thick heavily stained specimen under the microscope, it is better to light intensity adjustment has nothing to do with the clarity of the specimen. increase the light intensity passing through the specimen decrease light intensity passing through the specimen none of the options is correctarrow_forwardAssume your field of view under a 3X objective is 6mm across. What is the field of view in mm under a 20X objective? Show clear work with units for credit. Field of view 20X objective? ___mm What is the field of view of this 20X objective in micrometers? If you observe a specimen under the 20X objective and the specimen spans one-quarter of the field of view distance, how long is the specimen in micrometers?arrow_forward-true or false. the distance the objective lens is from the specimen when the specimen is in focus is called working distance. -in the DNA extraction from fruit laboratory, by what process did cell lysis occur decanting filtering blending mashing measuringarrow_forward
- PROCEDURE: 1. Set two pencils down parallel from each other. Make them about 2-3 inches apart as the length of your slides to keep things easy. 2. Stick a long piece of tape over the two pencils and to the table on either side of the pencils to hold the tape tightly between the two pencils like a bridge. 3. Don’t touch the sticky side of the tape or you will ruin the microscope. Drop a small drop of water onto the top of the tape using the pipette or medicine dropper. 4. Make 3-4 lines of tape and add a different-sized drop to each one. This will help determine what size of water droplet produces the biggest magnification. 5. Prepare a rectangular shape of plastic cover. Put a small slice of onion. Slide the rectangular shape of the plastic cover with the small slice of onion under the pieces of tape and observe the size of the onion on different droplets. Write your observations on the table below. No. of drops Observationarrow_forward1. Arrange the following steps in preparing a slide in proper order by writing a-e on the blank. Hold the coverslip by its sides and lay its bottom edge on the slide close to the specimen. Holding the coverslip at a 45° angle helps. Place a drop of water on the slide. Add the specimen to the drop of water (at times, you may want to have the specimen already on the slide before adding the water). Slowly lower the coverslip so that it spreads the water out. If you get air bubbles (looking like little black doughnuts), gently press on the coverslip to move them to the edge. Place slide on a flat surface. If there are dry areas under the coverslip, add a little more water at the edge of the coverslip. To0 much water can be dabbed off with a piece of paper towel. II. Arrange the following steps in using a microscope in proper order by writing a-f on the blank. Once you have focused, adjust the fine adjustment knob to see the specimen clearly Use stage clips to secure slide Use coarse focus…arrow_forwardWhat is the purpose of examining your specimen slide using low power objective first nefore high power objective?arrow_forward
- Which spectrophotometer mode should you use to calibrate the instrument and which mode should you use to read your samples? Transmittance for both Absorbance for both Absorbance to calibrate and transmittance to read samples Transmittance to calibrate and absorbance to read samples Flip a coin to pick a mode each time.arrow_forwardWhich objective is referred to as the "scanning objective"? 4x 10x 20x 100x 400xarrow_forwardDescribe the process to get a specimen into view using the 40X objective starting from the point after you have plugged in your scope and cleaned the objectives and slide.arrow_forward
- Describe the key components and principles of operation of a x-ray unit used for film/screen mammography.Use diagrams,where appropriate to illustrate your answerarrow_forwardWhich of the following is/are source/s of error in performing a spectrophotometric method? Answer all that apply. Sample is turbid when the absorbance is read. The absorbances were read at maximum absorption. Standard solutions are prepared accurately. The cuvettes have fingerprints.arrow_forwardList the steps that you implement while using oil immersion to observe the specimen.arrow_forward
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