The herbicide glyphosate (Roundup®) kills plants. Discuss all the Biochemistry involved as to why this powerful herbicide has little effect on humans.
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The herbicide glyphosate (Roundup®) kills plants. Discuss all the Biochemistry involved as to why this powerful herbicide has little effect on humans.
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- Name three starting compounds for industrial vanillin production. Explain two genetic modifications that has been done to improve vanillin production.What is the source of NH4+ in plant cells? Explain how NH4+ can be toxic to cells. How is this toxicity avoided?Which of the following pathways is likely to NOT be directly affected by the antimetabolite drug methotrexate? a. Production of purine deoxyribonucleotides b. Production of purine ribonucleotides c. Production of thymidylate d. Production of pyrimidine ribonucleotides
- The metabolic precursor for the production of most eicosanoids isWhat intermediate in purine synthesis will accumulate if a strain of bacteria is lacking each of the following biochemicals? a. Aspartate b. Tetrahydrofolate c. Glycine d. GlutamineA group of students have carried out an experiment to investigate the relationship between the amount of growth hormone BAP in the culture medium and the growth of shoot of jckplant.They have supplemented the medium with BAP but there is another student suggested that hundred percent shooting efficiency will be obtained when the the culture media is suplemented BAP and NAA.From your point of view, state which option will you choose and explain why?
- Give a short explanation of the process of the DNS (dinitrosalicylic acid) assay/method in determining and examining reducing sugars.The meat tenderizer used in cooking is primarily papain, a protease enzyme isolated from the fruit of the papaya tree. Why do you suppose papain is so effective at tenderizing meat?Refer to the figure below and answer the following questions: Legend: Blue – wild-type β-galactosidase; Red – mutant β-galactosidase _________ a. What is the optimum pH of wild type β-galactosidase? _________ b. What is the optimum temperature of mutant β-galactosidase? _________ c. Which enzyme has the greater activity at pH 7.2? _________ d. Which enzyme has the greater activity at a temperature of 42.5oC? _________ e. Which enzyme has greater activity if pH decreases from 7.5 to 6.4? _________ f. Which enzyme has greater activity if temperature increases from 40oC to 41 oC?
- Why are amino acids considered amphoteric compounds? How can stored fats in plants be utilized for energy reserves? What pathway is involved?Describe two reasons why the reaction glutamine synthetase performs is important to the body.What mechanism of action does Ciprofloxacin belong in? 1.inhibition of cell wall synthesis 2.inhibition of nucleic acid synthesis 3.inhibition of metabolic pathway 4.inhibition of protein synthesis