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Minchanka [31]
3 years ago
8

Which statement about relative potential energy of electrons is correct?

Biology
2 answers:
SVETLANKA909090 [29]3 years ago
6 0

The correct answer is: C. An electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

Electron shells or energy levels of the electrons are fixed distances from the nucleus of an atom where electrons may be found (electrons occupy only energy levels not the space between them). Electrons in the level 1 (K) have the lowest amount of energy, electrons at higher levels have more energy thet increases by a fixed, discrete amount. Electrons can jump to the higher level by absorbing energy or to a lower by releasing it in the form of light.


elena-s [515]3 years ago
3 0

Answer:

Option C, An electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

Explanation:

There are different arrangements of orbits s,p,d and f, where s is the closest to the nucleus and has least energy as compared to  other orbits.  Also, even in p orbitals an electron which lies in 2p orbit is close to nucleus and hence has less energy as compared to electron lying in 3p orbit. Thus, the nearer the orbit lies to the nucleus , the lesser is the energy of the electron rotating in this orbit as they face the strongest force of positively charged nucleus.

Hence, option C is correct.

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Answer:

glucose, water is found organisms but mixed with other substances

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Glycolysis is the process of converting glucose into pyruvic acid. Where does this process occur?
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The answer is the cytoplasm
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A scientist isolated the Hepatitis B surface protein gene and introduced it into the DNA of a banana plant. The scientist tested
omeli [17]

Answer:

A. The gene for surface protein was transcribed and translated.

Explanation:

Because all living organisms use the same genetic code, it is possible to express genes from one organism in the other. In this case, the DNA sequence that corresponds to the hepatitis B surface protein gene has been inserted into the banana, and the protein is expressed.

For the protein to be expressed, the gene must have been successfully transcribed into an mRNA by the banana plant machinery. This mRNA has then been translated into a protein that means the hepatitis B surface protein is now present in the cell.

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3 years ago
Opsins are proteins that are found in the light-sensing cells in the human eye. Different opsin proteins are sensitive to differ
Zepler [3.9K]

Answer:

Women who carry one copy of the mutated gene still have normal color vision because they have another copy, which is not mutated, in the other X chromosome that will be the dominant one. As a result, the women are carriers of the mutated gene but not color blind.

Explanation:

Colorblindness is a sex-linked mutation. A woman has two X chromosomes, while a man has one X chromosome and one Y chromosome. The mutated gene that causes color blindness is on the X chromosome, and it is OPN1LW. So if a woman has one mutated OPN1LW in one of her two X chromosomes, the OPN1LW gene in the other X chromosome will be the dominant one stopping the woman from being colorblind.

In the case of men, as they only have one X chromosome, if there is a mutation on the OPN1LW in the X chromosome, the men will be colorblind because there is no extra copy of the gene, as it is in women.

6 0
3 years ago
What is the volume of 0.25 mol of ammonia gas at 1.00 atm and 273 K? (R= 0.0821 Latm/molK)What is the volume of 0.25 mol of ammo
ICE Princess25 [194]

Answer:

5.6L

Explanation:

Given parameters:

number of moles  = 0.25mol

pressure on gas  = 1atm

temperature  = 273K

Gas constant R = 0.0821Latm/molK

Unknown:

Volume of gas  = ?

Solution:

Using the ideal gas equation, we can solve this problem. The equation is a combination of the three gas laws: Boyle's law, Charles's law and Avogadro's law.

It is mathematically expressed as;

             PV = nRT

where P is the pressure

           V is the volume

          R is the gas constant

          T is the temperature

          n is the number of moles

All the parameters are in the appropriate units and we simply solve for the volume of the gas;

                1 x V = 0.25 x 0.0821 x 273

                      V  = 5.6L

4 0
3 years ago
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