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Gas bubbles are produced by lactose fermenters as a byproduct of fermentation. Some lactose fermenters may produce more gas due to differences in the types and abundance of gas-producing enzymes they possess, while others may not produce as much gas due to variations in their metabolic pathways or the presence of alternative pathways that do not result in gas production. Additionally, environmental factors such as pH, temperature, and the presence of other nutrients can also influence the amount of gas produced during lactose fermentation.
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Is a neem plant angiosperm or gymnosperm?
A neem plant is an angiosperm. Angiosperms are flowering plants that produce seeds enclosed within a fruit, whereas gymnosperms produce seeds that are not enclosed within a fruit.
How is corrosive chemical different from an irritant?
It's a question of degree. Corrosion actually destroys the tissue (e.g. skin), whereas irritants would only produce a stinging, blistering or reddening.
Which gland produces sperm?
In males, the testes produce sperm cells. The female gametes, ova, are formed in the ovaries. Whereas the testes produce the male gamete from puberty onwards, girls are born with all their ova, which develop as they pass through the ages of puberty.
Do males produce gametes faster then females do?
In mammals a female is born with all of the oogonium (eventually eggs) she will ever produce. However, males can continuously produce gametes throughout their lifetime. Sperm are produced in around 64 days. Primary follicles (that produce ovum) take around 20 weeks to develop.
Is a calcium made of cells?
Calcium is made of atoms, not cells, as calcium by itself is a non-living element whereas cells are made up of thousands and thousands of elements that work in unison to produce a living cell.
Why does the ecoli and pseudomonas are different on the MacConkey agar?
MacConkey's agar is a differential media used to differentiate between lactose fermenting and lactose non-fermenting bacteria. E.coli is a lactose fermenter whereas Pseudomonas is a lactose non-fermenter.MacConkey's agar contains lactose as fermentable sugar and when it is fermented the pH of the medium decreases which is registered by neutral red (a pH indicator).Lactose fermenters such as E.coli produce pink colonies whereas lactose non-fermenters such as Pseudomonas produces colorless colonies. So the colors of E.coli and Pseudomonas colonies are different on MacConkey's agar.
Do eggs contain lactose?
No, eggs do not contain lactose. Lactose is a sugar found in dairy products like milk, whereas eggs are not dairy products and do not contain any lactose.
Why doesnt the lactase in lactose intolerant people work?
Lactose intolerant people have a deficiency of an enzyme called lactase, which breaks up the lactose into two monosaccharides called galactose and glucose. These two are easily digestable, whereas lactose is not.
Can bubbles evaporate?
No, bubbles do not evaporate. Evaporation is the process of a liquid turning into gas, whereas bubbles are composed of gas trapped within a thin film of liquid. Bubbles can burst or pop, but they do not evaporate in the same way that a liquid does.
What do people with lactose intolerance watch out for?
People with lactose intolerance watch out for and avoid dairy products, though there are degrees of lactose intolerance. Some people can tolerate small amounts of butter and cheese or yogurt, whereas others cannot tolerate even tiny amounts of milk products.
Why cant the ONPG test be substituted for the determination of lactose fermentation?
ONPG test detects only presence of beta galactosidase enzyme whereas lactose fermentation requires the presence of permease as well as beta galactosidase enzyme.
What is the difference between lactose milk sugar and bacterilogical grade sugar?
Lactose is a type of sugar naturally found in milk, whereas bacteriological grade sugar is a type of sugar that has been carefully processed and sterilized to ensure it is free from any bacteria or contaminants. Bacteriological grade sugar is used in microbiology and other scientific applications where purity is important.
Who is the fastest power puff girl?
None of the three are larger but Blossom is the leader , whereas ButterCup is the strongest ; Bubbles is the sensitive one .
What is the difference between stars and animals that produce light?
Stars produce light by "burning" hydrogen in a nuclear fusion, whereas some animals produce light when chemical compounds mix together to produce a glow
Does the amount of glycerin affect the size of bubbles?
yes it actually does because glycerin is thick and tough and the glycerin evaporate the water slower making the bubble last longer. when they bubble is in high temperature in a closed space or room and if the bubbles are also in a jar, they can and they will last much longer.
Are the bubbles in soda water and in regular water the same?
No, bubbles in soda water are carbon dioxide (introduced to the bottle when manufactured) whereas bubbles in regular water are entrapped air (introduced say by aerating over a water fall or the like - they can also occur in tap water by getting air in the pipes and then being entrapped when being pumped through the network of pipes to your house).
How does induction by IPTG differ from induction by lactose via allolactose?
Lactose is eventually metabolized in the cell to allolactose, which binds to the lacI repressor, leading to the induction of the lac promoter (or derivatives of the lac promoters). The allolactose is also eventually metabolised. IPTG does essentially the same as allolactose, however, it does not get metabolized. Moreover, since lactose gets transported in the cell by the lacY gene product and metabolized to allolactose by the lacZ gene product, lactose cannot be used in lacZY- strains for induction. IPTG, however, can be used since it does not require the two genes.
