hh Biolnteractive Click and Leam Virus Explorer Student Worksheet Extension Acti

Question

hh Biolnteractive Click and Leam Virus Explorer Student Worksheet Extension Activity-Size, Scale, and Proportion: How big is a virus anyway? Instructions: Click on the "Show Relative Sizes of the Viruses' tab at the bottom of the interactive home page. Answer the questions below in the spaces provided. (You will need a calculator for some items.) 1.Using the white scale bar provided, approximately how long (tall) Is TMV? 2.What is the approximate diameter of HIV? 3. What is the approxdmate diameter of Zika virus? 4.So, how big is a nanometer? Study the sample problem provided and then answer questions5 -10, showing your work in the space provided for each. SAMPLE PROBLEM: An average small paperclip measures 3.0 cm in length. Calculate the length of the paperclip in millimeters, micrometers, and nanometers a. Millimeters (mm)? 30 mm Since there are 10 mm in a centimeter, the calculation is completed in the following way: 3.0cm x 10mm/1cm = 30/1-30 mm b. Micrometers (um)? 30,000·m Since there are 100 in a millimeter, the calculation is completed in the following way: 30mm x 1000m/1mm = 30,000 c. Nanometers (nm)? 30,000,000 nm Since there are 1000 nm in a micrometer (um), the calculation is completed in the following way: 30,000 m x 1000 nm/ljum: 30,000,000·nm So, a small paperclip measures 3.0 cm in length, or you can say it measures 30,000,000 nm in length! 5.A single grain of salt measures 0.5 mm in width. a. What is the width in micrometers (um)? Show your work.) b. In nanometers (nm)? (Show your work.)

Explanation / Answer

Question No. 1

Answer: In the question it is written that white scale bar is provided but actually I didn’t find it. However for the information I want to convey that with the help of birefringent methods, it was revealed that TMV is having cylindrical shape with a length of 300 nm and diameter 18 nm (Takahashi and Rawlins).

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