Thiamine (vitamin b1) deficiency diseases have a lower prevalence now than in the past. however, they are seen as beriberi in some developing regions and in regions of crisis, and as wernicke-korsakoff syndrome in some alcoholics. one type of beriberi causes neurological symptoms such as weakness, fatigue, and loss of sensations. what is a possible explanation for these symptoms? thiamine is necessary for gluconeogenesis. hexokinase requires thiamine. coenzymes of the pentose phosphate pathway require thiamine as a precursor. thiamine is a precursor to the cofactor for succinyl coenzyme a synthetase. the brain uses glucose, metabolized in glycolysis and the citric acid cycle, as its main energy source.

What is the molality of a solution that has 4 mol of kci in 0.800 kg of water

Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. one potential application of nanotechnology is the construction of artificial cells. the simplest cells would probably mimic red blood cells, the body's oxygen transporters. for example, nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. if the person needed additional oxygen-due to a heart attack perhaps, or for the purpose of space travel-these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. suppose that the nanocontainers were cubic and had an edge length of 24 nanometers. part a part complete what is the volume of one nanocontainer? (ignore the thickness of the nanocontainer's wall.) express your answer using two significant figures. v v = 1.4ă—10â’20 l previous answers correct significant figures feedback: your answer 1.3824â‹…10â’20 = 1.382ă—10â’20 l was either rounded differently or used a different number of significant figures than required for this part. if you need this result for any later calculation in this item, keep all the digits and round as the final step before submitting your answer. part b suppose that each nanocontainer could contain pure oxygen pressurized to a density of 81 g/l . how many grams of oxygen could be contained by each nanocontainer?

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by