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Zina [86]
4 years ago
12

Which molecule or reaction supplies the energy for polymerization of nucleotides in the process of transcription?

Chemistry
1 answer:
Sindrei [870]4 years ago
7 0

Answer to this is "the phosphate bonds that are present in the nucleotide triphosphate serves as the substrates" in the process of transcription.

Transcription is the process in which DNA is transformed into RNA with the help of an enzyme known as RNA-polymerase. RNA and DNA are the nucleic acids which are formed by linking the nucleotides together.


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A mixture of 454 kg of applesauce at 10 degrees Celsius is heated in a heat exchanger by adding 121300 kJ. Calculate the outlet
stira [4]

Explanation:

The given data is as follows.

           Mass of apple sauce mixture = 454 kg

           Heat added (Q) = 121300 kJ

 Heat capacity (C_{p}) of apple sauce at 32.8^{o}C = 4.0177 kJ/kg^{o}C

So, Heat given by heat exchanger = heat taken by apple sauce

                            Q = mC_{p} \Delta T

or,                    Q = mC_{p} (T_{f} - T_{i})  

Putting the given values into the above formula as follows.

                     Q = mC_{p} (T_{f} - T_{i})  

              121300 kJ = 454 kg \times 4.0177 kJ/kg^{o}C \times (T_{f} - 10)

                      T_{f} = 76.5^{o}C

Thus, we can conclude that outlet temperature of the apple sauce is 76.5^{o}C.

3 0
4 years ago
A plutonium atom undergoes nuclear fission. Identify the missing element in the nuclear equation.
horrorfan [7]

Answer:

_{92}^{226}U

Explanation:

Let's firstly identify the atomic number (the number of protons) of Pu. This is done by referring to the periodic table and finding Pu. The atomic number of Pu is:

Z=94

In order to identify the type of a nuclear decay, we need to find the N/Z ratio. This is the ratio between the number of neutrons and the atomic number of an isotope. The number of neutrons is found by subtracting the number of protons from the mass number:

N=M-Z

That said, the N/Z ratio equation becomes:

N/Z=\frac{M-Z}{Z}=\frac{M}{Z}-1=\frac{230}{94}-1=1.45

This is a relatively high number thinking about the belt of stability of isotopes. Ideally, stable isotopes with a low Z value have an N/Z ratio of 1. Heavier isotopes with Z > 50 would have a slightly higher N/Z ratio and would be stable around N/Z = 1.25. This means we wish to decrease the N/Z ratio as much as possible.

Among all the decays, alpha-decay is preferred to decrease the N/Z ratio significantly (1.45 is much higher than 1.25). That said, we'll release an alpha particle with some nucleotide X of mass M and atomic number Z:

_{94}^{230}Pu\rightarrow _Z^MX+_2^4\alpha

According to the mass and charge conservation law:

230=M+4\therefore M=230 - 4 = 226

94=Z+2\therefore Z = 94-2 = 92

Identify an element with Z = 92 in the periodic table. This is uranium, U:

_{92}^{226}U

4 0
3 years ago
Which of these is a element: Salad, Sugar, Water, or Potassium
vovikov84 [41]

Potassium is a chemical element

Symbol: K

Atomic number: 19

Atomic mass: 39.0983 u ± 0.0001 u

Electron configuration: [Ar] 4s1

Melting point: 146.3°F (63.5°C)

3 0
4 years ago
Why does decreasing the volume of gas cause the pressure to increase if temperature is constant
Yuri [45]

There's less space, causing the air particles to collide with the walls of the container more frequently. Pressure is that energy caused by molecules striking a surface. Thus, compacting air molecules leads to higher pressure.

5 0
3 years ago
Calculate the number of miles in 39 g silicon
Semenov [28]
Well what are all the calculations you have
3 0
3 years ago
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