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3 years ago

Click on the molecules that represent transpiration.

Chemistry

1 answer:

elena-14-01-66 [18.8K]3 years ago

7 0

Transpiration is the releasing of Water through Stomata
So, the molecule is H2O

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Which chemical reaction is a single replacement reaction? A. Ba(ClO3)2 —> BaCl2 + 3O2 B. 2Mg + O2 —> 2MgO C. Zn + CuCl2 —&

professor190 [17]

I believe the correct answer is C. <span>Zn + CuCl2 —> ZnCl2 + Cu</span>

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3 years ago

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nadya68 [22]

Answer:

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Explanation:

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3 years ago

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kkurt [141]

Answer:

C. The fruit and the hamburgers were affected by an increase in heat energy.

Explanation:

One claim Harvey can use to support the examples from his experiment is that the hamburgers and fruits were affected by an increase in the heat energy.

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2 years ago

Alpha helices are a type of secondary structure in proteins. What is the length of a 27.0 kDa single‑stranded α‑helical protein

iogann1982 [59]

Answer : The length of protein will be, 36.8 A⁰

Explanation :

First we have to calculate the amino acid residue.

$\text{Amino acid residue}=\frac{\text{Length of single strand of protein}}{\text{Mean residue mass}}$

Given:

Length of single strand of protein = 27.0 kDa

Mean residue mass = 110 Da

$\text{Amino acid residue}=\frac{27.0kDa}{110Da}=\frac{27000Da}{110Da}=245.4$

Now we have to calculate the number of turns in protein.

$\text{Number of turns in protein}=\frac{\text{Amino acid residue}}{3.6\text{amino acid per turn of the alpha-helix}}$

As there are 3.6 amino acid per turn of the alpha-helix.

$\text{Number of turns in protein}=\frac{245.4}{3.6}=68.17$

Now we have to calculate the length of the protein.

$\text{Length of protein}=\text{Number of turns in protein}\times \text{Length of each turn}$

As, we know that the length of each turn = 0.54 A⁰

$\text{Length of protein}=68.17turns\times 0.54\AA=36.8\AA$

Thus, the length of protein will be, 36.8 A⁰

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3 years ago

What are the implications of histone acetylation?

PIT_PIT [208]

Answer: the correct options are A, B and D

Explanation: the implications of histone acetylation involves that the acetyl groups (-COCH3) are attached to positively charged lysines in histone tails, the process loosens chromatin structure, and

It promotes the initiation of transcription.

6 0

3 years ago