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Q. chooses the statement that best describes a buffer.
1. A buffer resists change in pH by accepting hydrogen ions when acids are added to the solution and donating hydrogen ions as bases are added.
2. Buffered solutions are always neutral, with a pH of 7.
3. A buffer stabilizes the pH of a solution by preventing acids or bases from dissociating.
4. A buffer causes acidic solutions to become alkaline, and alkaline solutions to become acidic.
5. A buffer prevents pH of a solution from changing while an acid or base is added.
Compare and contrast gene expression in prokaryotes vs. eukaryotes from the standpoint of promoter sequences
What substance is known as the "spreading factor?" How does the "spreading factor" aid an organism in its quest to penetrate the host cell? What is the dissimilarity between net primary production and net primary productivity.
The Verhulst's logistic model has been practical to the natural growth of the halibut population in certain areas of the Pacific Ocean. Let NN, measured in kg, be the total mass (or biomass) of the halibut population at time tt.
Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?
The movement of glucose into a cell against a concentration gradient is most likely to be accomplished by which of the subsequent. movement of glucose into the cell through a glucose channel.
The most significant probable cause of this temporary apnea is decreased activity of the what. what is the probability that the next child would be a girl.
Batch and continuous sterilisation
It is a very curcial concept to understand how the immune response is mounted against viruses, bacteria, protozoans and helminthes. For an effective immune response, both innate and adaptive immunity should work together.
Rhosopseudomonas is an anaerobic photoautotroph. How would you sterilize a mattress used by a patient with bubonic plague.
How denaturing a protein alters the functions of that protein. If we are bleeding by the accident, why the injury has to be deeper than epidermis.
Will xylem fluid flow into the aphid. Which microbes are most susceptible versus most resistant to disinfectants? Why.
What kind of approach is this alien taking to learn about the car? An alien from a new planet landed on earth. He is attentive by cars and is determined to figure out how they work.
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