Which of the following can be used to estimate the number of microorganisms in a culture?
A. Measurements of microbial biomass
B. Direct counts of microbial cells
C. Counts of viable cells using colony growth procedures
D. All of the choices are correct.
Answer: D
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Which of the following receptor and signal transduction molecules are mismatched?
A. sensor kinase receptor (NarQ): NarL B. G-protein coupled receptor: adenylyl cyclase C. G-protein coupled receptor: phospholipase C D. enzyme linked receptors: protein kinase E. steroid receptor: calcium
Component of cell walls, involved in maintenance of membrane structure.
Choose the letter of the best match: A. nitrogen B. calcium C. potassium D. phosphorus E. magnesium
Pascal's principle
What will be an ideal response?
Which of the following is/are TRUE regarding ghrelin?
a. ghrelin stimulates acid secretion b. removal of ghrelin secreting cells leads to appetite reduction c. ghrelin is a peptide hormone d. all of the above e. a and b