Which pathogen (Staphylococcus epidermidis or E. coli) is able to grow on Blood Agar plate and why? Is this type of agar serving as differential, as selective, or as both? Explain why. What is bacterial culture in food? How long does the lysogenic cycle take?
How do red blood cells obtain their energy to carry out cellular functions? Describe isotonicity, hypertonicity, and hypotonicity. How does each affect the cell volume? What role(s) do cytotoxic T cells play? Explain how genetics impacts the extent of changes in arteries. ...
International organisations have called to increase young people’s involvement in healthcare and health policy development. We currently lack effective methods for facilitating meaningful engagement by young people in health-related decision-making. The
In this test, blood agar plates filled with 5-10% sheep's blood are streaked to get the bacterial colonies. The agar plates are then incubated at 35-37 degrees Celsius and observed after 18- 24 hours. The haemolysed colonies are expected to have clear zones at points where the erythrocyte...
general, the relative antimicrobial potency of different samples may not always be compared, mainly because of differences in physical properties, such as solubility, volatility and diffusion characteristics in agar. Furthermore, agar-diffusion methods are difficult to run on high-capacity screening ...
" says registered dietitianKim Melton. "It also assists in proper functioning of your nervous system and your red blood cells." You'll most often find pyridoxine hydrochloride in bread, cereal and other grain-based products; food manufacturers add it in to make the food more nutritious. And ...
Using a counting chamber does not necessarily yield an accurate count of the number of live cells because it is not always possible to distinguish between live cells, dead cells, and debris of the same size under the microscope. However, newly developed fluorescence staining techniques make it po...
decade to see if rapamycin is effective in extending their lifespan. While the results from these experiments are exciting, we are still a ways from finding an effective way to extend human lifespan and achieve healthspan. But that’s not to say we can’t work toward it. ...
Why do microbes produce chemicals that are inhibitory to other microbes? Do acinar cells make bile? How do mucous membranes help fight pathogens? White blood cells engulf bacteria through what process? What color do stained Gram-positive bacteria appear under the microscope?
How is a complete blood count test done in a laboratory? What are the chemicals and equipment used? What is the procedure followed? Discuss how staining techniques may be applied in the identification of an unknown sample. How do humans detect color? Considering your answer to this question, ...