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E. coli, Enterobacter aerogenes, Salmonella typhi, and Proteus vulgaris are all able to metabolize glucose. Why are they all not able to metabolize lactose and sucrose?
these microorganisms do not have enzymes that are needed for cleavage of lactose and sucrose (disaccharides) to glucose and fructose (monosaccharides). These enzymes are called invertase and lactase. Microorganisms can...
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Describe cross presentation of antigen in which dendritic cells are able to capture and ingest a virus infected or tumor cell and present the antigen to naive CD8 T cells via the class I MHC pathway
The ability of antigen-presenting cells to acquire extracellular antigens by phagocytosis and present processed material by means of class I MHC molecules to Tcyt cells is termed as cross-priming or...
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Q2 what steps taken to utilize biodegradable waste and recycle non biodegradable waste?
Biodegradable waste is animal or plant matter that breaksdown naturally with exposure of microorganisms, heat and oxygen. People usebidegradable waste for recycling into the nutrient-rich usable substance which also called...
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in living things,one of this statement is correct
a)waste must be accumulated
b)waste must be recircled
c)waste must be removed
d)waste must be doubled
In all living organisms, wastes should be removed. Other variants do not suit because: Accumulation of wastes may lead to toxic effects and kill the organism. Only some organisms can...
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bile pigments are waste products resulting from a)destruction of old RBCs in the liver b)the action of hydrochloric acid c)the breakdown of fat d)activation of pepsinogen
a)destruction of old RBCs in the liver
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The gets rid of cell waste by breaking down large molecules into smaller ones for the cell to excrete. The helps these waste molecules exit the cell.
The lysosomes get rid of cell waste by breaking down large molecules into smaller ones for the cell to excrete. The cell membrane or plasma membrane helps these waste molecules exit the cell.
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Explain why hormones are only able to affect certain cells and not other cells
Hormones are organisms that are transported in blood or sap fluids to stimulate cells into action. A particular cell is a target for a hormone, so hormones target those cells...
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A sample of an industrial waste water is analyzed and found to contain 44.9 ppb Mn <sup>2+ </sup>. How many grams of manganese could be recovered from 1.17×10 <sup>3 </sup> kg of this waste water?
44.9ppb = 44.9 microgram per KgHence, 1Kg of waste water contains 44.9 microgram of Mn2+1.17x10^3Kg of Waste water contains (44.9x1.17x10^3)= 52533microgram Converting microgram to grams, since the question requested for...
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Ammonia is produced from its elements in a formation reaction. If 7.22 x 10<sup>24</sup> molecules of ammonia are produced, how many mole of ammonia was produced?
6.023×1023 molecules of ammonia = 1 mole ammonia7.81×1024 molecules of ammonia = (1×7.81×1024) / 6.023×1023 = 12.9612.96 moles of ammonia was produced.
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How many unique products would we have when 4 – ethyl – 1,2 – dimethylcyclopentane
reacts with one equivalent of chlorine in the presence of light? Draw each of the following
products
hydrogenation reaction is almost like a concerted reaction and both the hydrogens delivered from one sideso only cis compound will form
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