An established bacterial community is exposed to a dark environment for several days. Bacteria that require light to reproduce will show _________ compared to bacteria that do not require light to reproduce. (1 point)
Responses
lack of growth
lack of growth
more growth
more growth
uncontrollable growth
uncontrollable growth
the same amount of growth
lack of growth
The correct response is: lack of growth.
Bacteria that require light to reproduce, known as phototrophic bacteria, rely on light energy for their metabolic processes, including reproduction. In a dark environment, they would not be able to carry out photosynthesis and would therefore be unable to reproduce. Thus, compared to bacteria that do not require light to reproduce, they would show a lack of growth.
In order to determine the effect of exposure to a dark environment on bacterial reproduction, we need to understand the relationship between light and bacterial growth. Bacteria that require light to reproduce are known as phototrophic bacteria, which use light energy to carry out photosynthesis and produce organic compounds.
If an established bacterial community consisting of phototrophic bacteria is exposed to a dark environment for several days, they will show a lack of growth compared to bacteria that do not require light to reproduce. This is because the absence of light eliminates the energy source required for photosynthesis and organic synthesis in phototrophic bacteria. Without the ability to produce organic compounds, their growth and reproduction are hindered.
On the other hand, bacteria that do not require light to reproduce, known as heterotrophic bacteria, rely on external organic compounds as their energy source. These bacteria can obtain energy from various organic materials present in their environment. Therefore, they will continue to grow and reproduce even in the absence of light.
So, the correct answer to the question is "lack of growth" compared to bacteria that do not require light to reproduce.