细菌，这个微小且形态各异的单细胞微生物群体，是地球生态系统中不可或缺的组成部分。它们存在于土壤、酸性温泉、放射性废物、水体、地壳深处，乃至动植物的有机物质和体内。每克土壤中通常含有4000万细菌，一毫升新鲜水中则有100万，总计地球上大约有500万亿（5×10^30）个细菌，构成了地球生物量的很大...
What is bacteria? Are bacteria the only prokaryotic organisms?Prokaryotic and Eukaryotic Cells:A prokaryotic cell is a primitive cell. Such cells lack a nucleus and other membrane-bound organelles. Eukaryotic cells, on the other hand, are those cells that have a well-defined nucleus and other...
cannot be seen with naked eye and lack membrane bound organelles.They were discovered by Leeuwenhoek.Their features resemble to the organisms of kingdom monera. Bacteria are present everywhere. The size of bacteria is not static. It is different for every species. Their size ranges from0.1...
Bromelain is a naturally occurring substance that is derived from pineapples. Bromelain may be good for digestion, removing dead skin cells from burns and reducing inflammation, swelling, muscle soreness, pain and nasal congestion. Bromelain is a naturally occurring substance derived from the fruit, ...
I would also like to share with you a quote from this 2019 study, showing how curcuminoids can help the gut bacteria. “Curcumin in the gut favors the growth of beneficial bacteria strains such as Bifidobacteria and Lactobacilli, with reduction of pathogenic strains. In addition, curcumin treatme...
Several studies have reported that thyme essential oil has antibacterial activity against bacteria such asE. coli,salmonella, andStaphylococcus aureusand yeast such asCandida albicans. The jury is still out on whether that activity is as potent when thyme is consumed in tea form. ...
Other bacteria are almost always harmful to humans. Cholera, a diarrheal disease that kills about 95,000 people worldwide each year, is caused byV. cholerae. The bacteriumYersinia pestis, spread by fleas that bite rodents, was responsible for theBlack Death. AndBacillus anthraciscan form almost ...
What is Bacterial Contamination? Discussion Comments Bygalen84basc— On Oct 04, 2010 What are some friendly bacteria foods? I know of course about probiotic yogurt, and I've read that some cheeses have good bacteria (and fungus, for that matter), but what are some other good sources of fr...
What is bread mould ? Explain. 01:37 What is bacteria ? In what way is it useful? 02:33 Are bacteria harmful ? Explain. 01:34 Write a note on micro organisms in water. 02:21 How do you prepare your own magnifier ? 01:57 We see that plants don't move like us. Should we consi...
One method of fighting harmful bacteria is to develop a bactericidal substance that kills the particular bad bacteria without harming the important good bacteria. A bactericidal can come in one of three forms: disinfectant, antiseptic, or antibiotic. Disinfectants are applied to nonliving surfaces or ...