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arsen [322]
3 years ago
6

Which of these is a ball and stick model?​

Biology
2 answers:
zvonat [6]3 years ago
7 0
Most likely the third one if not I am sorry
Ilia_Sergeevich [38]3 years ago
4 0
I’m pretty sure it’s the third one or the furthest on the right
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Consider a situation in which the enzyme is operating at optimum temperature and pH, and has been saturated with substrate. What
almond37 [142]

Answer:

The correct answer is option C, that is, increase the concentration of the enzyme.

Explanation:

Biological molecules or proteins that enhance the rate of a chemical reaction taking place within the cell are known as enzymes. These proteins play an essential part in the proper functioning of the body, as they help in the process of metabolism and digestion.  

In the given case, if the enzyme gets saturated with the substrate, and is working at optimum pH and temperature, then to enhance the rate of the reaction the only thing that can be done is to enhance the concentration of the enzyme. However, further stimulation of some of the enzymes can be done with the addition of allosteric activators in the reaction, otherwise, enhancing the concentration of the enzyme is the only way.  

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Which type of molecule will require energy to cross the cell membrane? Question 3 options: A) carbon dioxide B) Na+ C) nonpolar
timofeeve [1]

Answer:

B) Na+

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Since polar-polar molecules repel each other, Na+ can't pass through the cell membrane easily. So it uses the proteins attached the cell membrane inside and outside to transport such molecules by using energy in terms of ATP.

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the element oxygen , represented by the symbol o, is classified as a pure substance

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They flow out of the thylakoid , and give energy to a phosphate group.

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