Please answer both of the following 1) The Haworth projection of D-altrose is shown What type of cyclic sugar is formed?
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Please answer both of the following
1) The Haworth projection of D-altrose is shown
What type of cyclic sugar is formed?
2)Which of the following statement is true about the quaternary structure of a
protein? only one answer is correct
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- Draw the products formed when -D-idose is treated with C6H5NHNH2 (excess), H+Which of the following glycolytic enzymes is NOT subject to regulation a) Hexokinase b) PFK-1 c) Both GAPDH and Triose phosphate isomerase (TPI) d) Triose Phosphate Isomerase (TPI) e) GAPDHWhich of the following foods can someone who has lactoseintolerance eat?(a) ice cream(b) french fries(c) a chocolate milkshake
- A) Upon entering the body, CH3H9+ reacts with cysteine to form a molecule that is able to pass through the blood brain barrier (BBB). Draw the structure of this molecule and purpose why it is able to pass through the BBB (Hint: think about another amino acid). B) The adduct formed in part A is very labile. On encountering selenocysteine, it can permanently inhibit it. Propose how the adduct from Part A inhibits selenocysteine and explain your answer.Does concentration of xylulose-5-phosphate increase in cells after eating rice? Explaincomplex allosteric regulation of the aspartate transcarbamoylase reaction is significant because it links? a) citric acid cycle and catecholamine biosynthesis b)glycolysis and lactic acid fermentation c) opiate with neurotransmitter d) glycolysis and fatty acid metabolism e) amino acid and nitrogenous base metabolism
- Given is a polypepetide in the presence of the enzyme pepsin. N-gly-arg-met-phe-ala-lys-ser-tyr-gly C, What fragments can be formed? choices are below gly-arg-met + phe-ala-lys-ser + tyr-gly gly-arg-met-phe + ala-lys-ser-tyr + gly gly + arg-met-phe-ala + lys-aer-tyr-gly gly-arg + met-phe-ala +lys +ser=tyr=glyWhich of the following is an aldo-tetrose ? * НО H НО Н OH Н OH OH CH2OH (a) (d) H Н НО H A B D OE н -ОН -ОН CH₂OH c=0 н -OH CH₂OH (b) (e) н НО НО H- CH₂OH c=0 -H H OH CH₂OH (c) H Н CH₂OH Т c=0 OH OH CH2OHWhich of the following is an anomer of B-D-gulopyranose? O O го ОН H ОН H ОН H H ОН CH₂OH -II- H H ОН ОН CH2OH H ОН ОН CH2OH О 0. H CH2OH то Н H H ОН H H - о H ОН ОН H ОН H ОН ОН H О ОН ОН H N
- The anomer of a-D-glucopyranose is CH:OH он ÓH CH2OH он он он он CH,OH он он он он CH,OH он OH он ÓH ÇH;OH он он он онWhich of the following condenses acyl and malonyl groups? a) Acetyl co-A ACP transacetylase b) Malonyl co-A ACP transferase c) ß-ketoacyl ACP synthase d) Acyl carrier proteinWhich of the structures below is that of о-в-D-glucopyranosyl-(1->4)- a-D-glucoругanose CH2OH CH2OH H. OH он H Он OH OH CH2OH HOH2Ć OH он CH2OH CH2OH OH H он H он он CH2OH CH2 OH H OH он OH None of the other structures are correct.