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stepan [7]
3 years ago
12

Which of the following is NOT a mechanism to prevent oxygen from entering the environment of nitrogenase? Group of answer choice

s Reduction of iron to prevent oxidation Protective proteins sequestering the nitrogenase Using specialized cells to sequester nitrogenase Separating oxygenic photosynthesis and nitrogen fixation temporally
Biology
1 answer:
Margaret [11]3 years ago
5 0

Answer:

Reduction of iron to prevent oxidation.

Explanation:

Bacteria has several mechanisms to protect the enzyme nitrogenase, one of them involves the increase of their metabolism to reduce the oxygen availability.  

Besides this mechanism, there is also a conformational protection. This involves an interaction with FeSII protein, a ferredoxin. This protein is found as a homodimer that contains a 2[Fe-S] cluster, so reduction of Fe is not one of the mechanisms.  

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Two of the five types of taste buds are activated by directly hypopolarizing the taste buds; i.e. do not involve a second-messen
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Answer: salty and sour

Explanation:

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Based on the information given, the tastes that activate these receptors are salty and sour. The tastes depolarize the cell receptor directly.

8 0
3 years ago
Contact forces result from the physical push or pull of an object<br><br> true or false
olga_2 [115]
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The chart below shows the three main types of plant tissues and associated tissues. mc003-1.jpg Which row (A, B, C, or D) best c
katrin [286]
I found the exercise on the internet. Attached is the chart and the rows. On the left we have "plant tissue", then on the middle top - "dermal" - and just below - "ground". Straight in front of "ground", the term is "c<span>ollenchyma".

The correct row would be D.
1. is vascular because that's the other type of plant tissue besides the ones that are already present in the chart.
2. and 3. - s</span>clerenchyma and parenchyma - are indeed types of ground tissues next to collenchyma.
4. and 5. - x<span>ylem and phloem - are the types of tissues present in vascular plants, they work as vessels where water and nutrients are conducted.</span>

9 0
3 years ago
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Name to types of evidence that scientist used to support the theory of evolution?
Sergio [31]
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8 0
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Within a phase, a change in heat causes the temperature of the substance to _____ as the _____ energy of the molecules changes.
Nana76 [90]

Within a phase, a change in heat causes the temperature of the substance to change as the kinetic energy of the molecules changes. During a phase change, however, a change in heat causes a change in the potential energy of the molecules and the temperature will stay the same.

<h3>What is Potential energy?</h3>

Potential energy may be defined as a form of accumulated energy that relies upon the comparative situation of diverse parts of a system.

The above passage determines the differentiation between the kinetic and potential energies with respect to temperature and phase change.

Therefore, it is well described above.

To learn more about Potential and Kinetic energy, refer to the link:

brainly.com/question/14427111

#SPJ1

7 0
2 years ago
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