How do bacteria help plants grow? How does bacteria benefit environmental sustainability? Why are saprophytic bacteria helpful and necessary? How do bacteria help keep ecosystems healthy? How does the shape of bacteria help them survive? How does bacteria reproduce? Explain how microorganisms can be ...
Why do nutrients in agar help culture growth? Explain how the absence of a nucleus affects a red blood cell's life span. What makes the memory cells differentiate between present for life or short lived in their development? What are Red blood cells? Explain all and their life cycle in de...
Red algae are an appreciated source of food in several different parts of the world. Red algae are for instance used to make agar agar and carrageenans. In Japan, red algae has been cultivated for at least three centuries to make nori and the speciesPorphyrayezoensisandPorphyra teneraare espec...
Although many bacteria grow in a free-living, ‘planktonic’ state, it is quite common for them to adhere to surfaces by producing extracellular polymeric substances (EPS), e.g. biofilms. Due to their higher resistance against antimicrobial agents, an interesting option in antibacterial research ...
Ice cream that melts too quickly is no fun to eat! Stabilizers can help here too, by both slowing the rate at which ice cream melts and maintaining its shape better, as it does melt. Top: fast melting ice cream. Bottom: slow melting ice cream ...
transduction technique for transferring the second plasmid into strains that contained only the first.119 Theoretically the resulting fully virulent deriva- tive strain could be selected on agar culture plates, screened for the capsule production phenotype when grown in the presence of elevated carbon ...
Does a high bacterial count in a food necessarily indicate that it is unsafe to eat? Why or why not? Suggest three ways in which food might become contaminated by harmful bacteria. You streak an unknown bacterium on AMP ...
Naturally occurring bacteria grow over 1–2 weeks to produce lactic acid, which then prevents the growth of food poisoning bacteria and other spoilage microorganisms. The amount of added salt controls the type and rate of the fermentation, and (ii) in sweet fermented pickles, they are preserved...
Once the disk is placed onto the plate, the antibiotics will start to diffuse out. If the bacteria being studied is sensitive to the antibiotic, then no bacteria will grow close to the disk because it will be killed by the medication. ...
How to Grow Mushrooms as a Beginner A lot of the older growing guides, including those by Stamets, required a medium skill level, a good lab technique, some homemade lab gear, and excellent working knowledge of agar and growing from grains. ...