89301. The growth is normally expressed as __________ in turbidimetric measurement
89302. Which of the following organisms typically get their carbon for biosynthesis from carbon dioxide?
89303. An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is
89304. The straightforward method of binary fission explains how bacteria
89305. The equation used to obtain bacterial population by binary fission is
89306. Bacteria and fungi multiply best
89307. An organism has an optimal growth rate when the hydrogen ion concentration is very high. This organism is
89308. Which of the following procedures uses a photocell to measure absorbance of a culture to regulate the flow of culture media?
89309. Organisms, using organic compounds as electron donors are called
89310. The reproduction by budding occur in
89311. Starvation proteins are produced by a culture during which of the following segments of the growth curve?
89312. The cell reproduction in bacteria may occur by
89313. During exponential growth, the growth rate is
89314. A spore differs from an actively replicating bacterium in that the spore
89315. Which of the following has more tolerance for acidic pH (lower pH)?
89316. The ability of Vibrio fischeri to produce bioluminescence chemicals only when a certain population density has been reached is an example of
89317. Antimicrobial constituents for the microbial growth in foods are
89318. The average size of cells during the exponential phase of growth is
89319. A culture broth tube was very turbid at the surface but clear throughout the rest of the tube indicating that the
89320. A synergistic effect is observed when
89321. Generation time is
89322. The term facultative anaerobe refers to an organism that
89323. The microorganisms that grow best in a low-oxygen environment is called a (n)
89324. Pseudomonas pseudoflava can grow as
89325. Which of the following is the suitable temperature range for mesophiles?
89326. Exponential phase of growth curve of bacteria is of limited duration because of
89327. A culture broth tube was very turbid at the bottom of the tube but clear at the top of the tube indicating that the
89328. In the exponential phase, the cells and cell mass
89329. What is the primary source of food for marine life?
89330. Postgates assay technique is useful in determining if a cell is viable even though it is
89331. What are the extrinsic factors for the microbial growth?
89332. Quantitative measurement of bacterial growth can be carried out by measuring
89333. Organisms such as lactobacilli that have elaborate requirements for specific nutrients i.e. vitamins and other growth promoting substances, are generally called as
89334. The combination of low levels of NaCl, NaNO3 (sodium nitrate), and slightly acid pH can prevent multiplication and toxin formation of
89335. Bacteria of genus Nitrosomonas use __________ as their electron source.
89336. All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as
89337. The generation time of a culture that produces two generations per hour is
89338. Autotrophic bacteria are those which
89339. Which of the following organisms typically get their carbon for biosynthesis from organic compounds?
89340. An organism is completely dependent on atmospheric O2 for growth. This organism is
89341. Microaerophilic bacteria are those which require
89342. The period between inoculation of bacteria in a culture medium and beginning of multiplication is known as
89343. The term aerotolerant anaerobe refers to an organism that
89344. The term obligate anaerobe refers to an organism that
89345. The fragmentation occurs in
89346. Which of the following is not the characteristic of a growth curve?
89347. Generation time of Escherichia coli is
89348. The organism which obtain their energy from chemicals are designated as
89349. Nutrient content and biological structures are considered as
89350. The organism which grows best above 45°C are called
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
Powered By:Omega Web Solutions