A plant isolate was subjected to qualitative tests todetermine the presence of macromolecules. Belowis a summary of results obtained:Biuret Ninhydrin Schiff's Test fortestDeoxyriboseTest forPhosphattesttestViolet Violet PinkBlueYellowsolution solution solution solutionprecipitatConclusion: RNA is definitely present in theisolate.TrueFalse

Qualitative tests detect the presence of specific molecules in a sample solution. There are…

Answered: A plant isolate was subjected to…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

A researcher is interested to test the antibacterial activity of a Philippine Plant crude extracts against Beta-lactamase producing Klebsiella pneumonia isolated in a hospital setting. He will use the following concentrations of crude extract, 500mg/ml, 250mg/ml and 100mg/ml. Positive control: Tetracycline 10mg/ml and DMSO as the negative control. Given this research scenario kindly construct a research framework.
what is the result in tube g
Which of the following is the densest TAG? O trimyristin O triolein tristearin tripaltristearin mitin
Discuss the functions of the following components in performing gel electrophoresis; Polyacrylamide gel Power supply TBE buffer solution Restriction enzymes
For the study of alanine production by a recombinant strain of E. coli, cultivation was carried out in a benchtop bioreactor with 4.5 L of culture medium, using glucose as a limiting substrate. During the cultivation, there was no lag phase and the cells showed exponential growth for 5 hours. The following table presents the results of the analysis of ammonia and glucose consumption, and alanine accumulation throughout the cultivation. Knowing that 500 mL of a cell suspension at a concentration of 5.0 g/L (inoculum) was added to the 4.5 L of medium in the reactor and that the YX/NH3 previously determined was 7.5, calculate:a) the maximum specific growth rateb) YX/S and YP/S yield factorsc) How long would it take to reach Cx = 30 g/L if the cells continued with the exponential growth profile until the end of the culture (without nutrient deprivation or any type of inhibition)?d) Describe how the mathematical treatment of the data should be done to determine the type of product formation…
describe the liquid growth analysis in detail.
A bacterial suspension is standardized using a 0.5 McFarland Standard. 1 mL of that bacterialsuspension is aseptically transferred to a 250-mL volumetric flask and then diluted to volume withsterile water. After this is mixed, a 2.0-mL portion of the resulting suspension is taking andtransferred aseptically to a 50-mL volumetric flask, where it is diluted to volume with water. Thebacterial suspension is mixed and then prepared for use in product testing.
You have four strains, and you test for growth on the following medias: Rich, Minimal, Minimal + Lysine, Minimal + Histidine, and Minimal +Lysine and Histidine. The table below shows your results. Strain Rich 1 2 3 4 Minimal Min + Lysine Strain 2 Growth No Growth Growth Growth No Growth No Growth Strain 4 Growth Growth Strain 1 Lysine auxotroph only Growth Histidine auxotroph only Strain 3 is not an auxotroph, but a pro Min + Histidine No Growth Is an auxotroph, but not for ly ✓ No Growth Growth Determine whether each strain is auxotroph or a prototroph, and if an auxotroph what sort of auxotroph? Min + Lysine and Histidine Growth No Growth No Growth No Growth No Growth Growth Growth Growth
In the Avery, McLeod, McCarty Experiment where supernatant from heat killed, virulent S Strain pneumonia solutions were added to non-virulent R Strain pneumonia cell cultures and allowed to grow in liquid media (i.e., broth). In tubes where Protease was added to the supernatant prior to cell culture, what was the observed effect when plating and growing the S. pneumonia cells to solid media?
A mistake was made in preparing the arginine decarboxylase test, and mineral oil was NOT added to the test tube after inoculating with bacteria. If an arginine decarboxylase-positive bacteria species was inoculated into the above arginine-decarboxylase broth without mineral oil, what would likely be the color result of this bacteria in this test? Would this produce a false positive or false negative result? Explain.
Prepare a dilution of phage from 1.5 x 1010 PFU/mL to 1.00 x 102 PFU/mL. Draw a dilution scheme to achieve this serial dilution considering the following: The volumes of each dilution should be 1.0mL. It is not advisable to perform any dilutions > 1/100. The first dilution in any titre determination of stock phage should use 10µl or less of stock.
One of the early results shows that the post-centrifugation pellet of encapsulated cells also contains EA1 and/or Sap. Why is this not proof that Bacillus anthracis cells have both an S-layer and a capsule simultaneously? I need help finding the answer in the article and explain in short answer link to article: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC106848/

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