June 12, 2017 Use the images above to answer the following questions 43. The cel
ID: 90980 • Letter: J
Question
June 12, 2017 Use the images above to answer the following questions 43. The cells in Image A were seen in lab by using a a A prepared slide B. wet mount slide 44. Image B shows cells from a unicellular organism A. True B. False 45. Which image shows a eukaryotic organism? A. Image A only B. Image B only C. Image A and Image B Both 46. You're testing an unknown clear substance using Biuret's Reagent. After adding the unknown substance and 3 drops ofBiuret, the color changes from clear to a purple. What would this tell you? A. The unknown substance is most likely a protein B. The unknown substance contains reducing sugars C. The unknown substance may have both starch and protein D. The solution tuming purple indicates that the substance is free of impurities 47. Professor Hoffman finds out that he can lift 182 kg (almost 400 lbs)! What is this in grams? A. 0.01828 B. 182,000g C. 1820g D. 182g 48. Stating that trees are much larger than squimels would be a observation A quantitative B. qualitative 49 The image shown (right) is an example of C, a hydrogen bond D. bond nonpolar covalent bond 50. Generally, polymers of chemically link through: biomolecules B. Hydration synthesis reactions D. vulcanization *THIS ENDS THE SCANTRON OF THE EXAM PORTIONExplanation / Answer
1.The cells in image a are seen in prepared slide.
In this process we uses a glass slide and makes smear of the specimen. This is done by fixing the specimen by air or heat on the slide and seeing it under the microscope.
2.Image B shows cell of multicellular organism.
Multicellular organism is made of more then one cell and unicellular organism have only one cell.
In image B we can see multiple cells.
3.image B shows eukaryotes . Eukaryotes have true nucleus mean DNA contain all its component, eukaryotes are mostly multicellular, they consist of membrane bound cell organelle which prokaryote lack.
4. Biuret test- this is a detection test for protein which may be used for assessment of protein in a solution.
In this test copper ion ii bind to the peptide bond and forms a purple co ordination complex in presence of an alkaline solution.
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