Biology

Biology, 22.08.2019 17:40, sa9334

Bacterial cells grow and divide rapidly. in order to do this, bacteria take in nutrients through their

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Biology, 25.06.2019 06:10, hasshh

When bacteria are inoculated into a new sterile nutrient broth, their numbers don't begin to increase immediately. instead, there is a lag phase that may last for an hour or even several days. why don't bacterial numbers increase immediately? a. the bacteria have to establish a biofilm before their numbers can increase.b. there are not enough nutrients for the bacteria to grow, and growth is delayed until there are some dead cells to cannibalize.c. the medium contains inhibitors that prohibit rapid growth of the bacteria, and these must be inactivated before bacterial numbers will increase.d. the bacteria must adjust to the nutrient content in the new medium, synthesizing necessary amino acids, growth factors, and enzymes.

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Biology, 07.07.2019 08:50, kaitlyn114433

Bacterial cells grow and divide rapidly. in order to do this, bacteria take in nutrients through their what?

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Biology, 22.07.2019 08:30, Unkn0wn3815

The growth of bacteria is determined not only by the composition of their surroundings but also by sudden changes in the living environment. for rapid growth in different environments, bacteria need to adjust their enzyme levels in order to rapidly benefit from the nutrients currently available in their surroundings. if the living environment undergoes rapid changes, the bacterium’s own production of proteins has to conform to these changes in an effective way. how are bacteria able to adapt to a rapidly changing environment? a) during transcription, rna polymerase is unable to bind and commence transcription. b) bacterial genes, in a rapidly changing environment, mutate rapidly in response to these changes. c) bacterial genes are organized into operons, clusters of coregulated genes, that are regulated such that they are all turned on or off together. d) bacterial cells are prokaryotic and genes have ready access to the ribosomes within the cell's cytoplasm. transcription, then, take place at a very rapid rate.

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Biology, 20.09.2019 18:00, kaitlyn114433

When bacteria are inoculated into a new sterile nutrient broth, their numbers don’t begin to increase immediately. instead, there is a lag phase that may last for an hour or even several days. why don’t bacterial numbers increase immediately? a. the medium contains inhibitors that prohibit rapid growth of the bacteria, and these must be inactivated before bacterial numbers will increase. b. the bacteria must adjust to the nutrient content in the new medium, synthesizing necessary amino acids, growth factors, and enzymes. c. there are not enough nutrients for the bacteria to grow, and growth is delayed until there are some dead cells to cannibalize. d. the bacteria have to establish a biofilm before their numbers can increase.

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