a signal molecule which can bind to an enzyme and shut down its activity by altering the shape of the enzyme.

Biology

1 answer:

pantera1 [17]3 years ago

6 0

Answer:

Enzyme inhibitor

Explanation:

An enzyme inhibitor is a molecule that binds to an enzyme and decreases its activity. By binding to enzymes' active sites, inhibitors reduce the compatibility of substrate and enzyme and this leads to the inhibition of Enzyme-Substrate complexes' formation, preventing the catalysis of reactions and decreasing the amount of product produced by a reaction.

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The presence of nitrogen-fixing plants should benefit nearby individuals of other species, because nitrogen is a key nutrient--i

saul85 [17]

Answer:

The correct answer is "Nitrogen will only become available to other, nearby plants when the nodules or the nitrogen-fixing plant itself dies".

Explanation:

Nitrogen fixing bacteria maintain a symbiotic relationship with plants. Bacteria performs nitrogen fixation providing the plant with ammonia, while bacteria has a safe place and nutrients to prosper. This relationship is very intimate because it occurs at the root hair of the plant at structures called nodules. Therefore, nitrogen will only become available to other, nearby plants when the nodules or the nitrogen-fixing plant itself dies

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Select all that apply

galina1969 [7]

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1. What is the limiting factor for most animal life in the open ocean?

Minchanka [31]

Answer:

Biotic: Food availability

Abiotic: Temperature

Explanation:

There are two types of limiting factors for biodiversity: biotic and abiotic. Biotic refers to living things, for example, organisms that are an important food source. Most animal life forms in the ocean highly depend on the availability of a food source. If food is limited or scarce, the populations of a given species could face significant declines.

On the other hand, there are abiotic factors, which refer to factors that are not alive, such as physical factors. For instance, temperature and light. For marine organisms, temperature is a critical factor. Even an increase of 'only' 1 ºC could make a huge difference in the survival of a species as it could disrupt their ability to forage, hunt, or perform physiological processes, e.g. metabolism.

Therefore, if we refer to a biotic factor, food availability is a limiting factor for most animal life in the open ocean, whereas, if the refer to an abiotic factor, temperature (and light) are limiting factors for pelagic life.

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