Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A Lab on diffusion and osmosis. Basically, we had a15ml strip of dialysis tubing that was soaked. We tied a knotto form a sack. We added 3ml of starch, gelatine (protein),glucose and NaCl into the sack and we tied the sack with another knot. We rinsed it with a little water and placed it into a250ml beaker with distilled water. We heated it to37oCelsius. We waited for 30 minutes for themolecules to move out of the sack and into the surrounding waterbath. While waiting, we tested indicators to determinewhether a certain molecule has moved through the semi permeablemembrane. We removed 80ml of water from the beaker anddistributed 20ml into each of 4 beakers.Indicators--glucose-benedict's soln, NaCl-AgNO3,starch-iodine, protein-biuret solnThere was a presence of glucose and NaCl in the water bathwater when we tested using indicators.questions...a)tyrosine is an amino acid. If we added an enzymeinvolved in the digestion of proteins to the dialysis sack, wouldyou expect to get a positive test for tyrosine in the water bath?Explain.b)in a cell, turgidity is due to internal pressure. Describe the state of turgidity of the dialysis sack over theduration of the investigation. If there were changes,describe why they occured.c)over a long period of time, you may see the presence of somestarch in the water bath. Give 2 possible explanations.d) suggest a reason why quick movement of each molecule intoor out of a cell might be important in functions within the humanbody.
Explain the plant life, animal life, and geology of the ecosystem in the area in which you live. What populations and communities are there? How dependent is your community on this ecosystem? What are the limiting factors of ecosystem.
What is the function of the polymerase chain reaction (PCR) in genetic engineering? To cut DNA into many fragments.To carry DNA into a new cell.To make millions of copies of a specific segment of DNA.
Primary transcripts produced by RNA polymerases are generally faithful copies of the DNA template. However, most final/functional forms of these RNAs vary substantially from the primary transcript.Give an instance of an RNA class.
what is the effect of longer UV exposure on Serratia Marcescens?to answer thsi question which plates should be compared?
The given sequence of a piece of mRNA. Create the sequence of the double stranded piece of DNA from which it was derived. Label the strands: coding, noncoding, template, nontemplate.
1.what events occur during ovulation?2.the remnant of the ruptured follicle is the which later degenerates
Integral membrane proteins can be anchored to the plasma membrane by all of the following except Answer A, a prenyl-based hydrocarbon moiety such as farnesyl B, a fatty acyl group such as palmitate C, a glycosylated phospholipid such as glycosylph..
You are interested in examining the metabolism of a new drug that has been developed in your company. Briefly outline how you would determine whether cytochrome P450 is involved in metabolizing the drug, and if so, which subtype is involved.
While a tall homozygous plant was crossed with a short homozygous plant, the F1 offspring were all tall. No short plants were present in the F1 generation. Which principle does this situation represent.
Assume a population of people is 16% Rh - negative.
immune systems consist of two components-humoral and cellular. using the south university online library or the
What is the formula of the Hardy-Weinberg Rule for a 1 locus, 2 allele system? If the frequency of "A" in a population is 70% and "a" is 30%, what arethe expected allele and genotype frequencies in the next generation?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd