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Talja [164]
3 years ago
6

What type of large molecule is responsible for repair and growth of cells?

Chemistry
2 answers:
goldfiish [28.3K]3 years ago
8 0

Answer:

\boxed {\boxed {\sf A.\ Protein}}

Explanation:

Macromolecules play many important roles in the body. Let's list the functions of proteins, carbohydrates, and lipids.

Proteins:

  • These molecules help with growth, building and repairing cells, transporting substances, and acting as enzymes or hormones.

Carbohydrates:

  • These molecules are used for energy. They can provide quick energy, because they are easy to break down.

Lipids:

  • These help store energy for later use, plus they are sometimes insulators and hormones.

Based on the information, the molecule responsible for repair and growth must be  <u>protein.</u>

Oliga [24]3 years ago
7 0

Answer:

The answer is a. proteins

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The heat of fusion for water is 80. cal/g. How many calories of heat are needed to melt a 35 g ice cube that has a temperature o
HACTEHA [7]

Answer: 2800 calories

Explanation:

Latent heat of fusion is the amount of heat required to convert 1 mole of solid to liquid at atmospheric pressure.

Amount of heat required to fuse 1 gram of water = 80 cal

Mass of ice given = 35 gram

Heat required to fuse 1 g of ice at 0^0C = 80 cal

Thus Heat required to fuse 35 g of ice =\frac{80}{1}\times 35=2800cal

Thus 2800 calories of energy is required to melt 35 g ice cube

6 0
3 years ago
∆G° for the process benzene (l) benzene (g) is 3.7 Kj/mol at 60 °C , calculate the vapor pressure of benzene at 60 °C [R=0.0821
Alex787 [66]

Answer:

4) 0.26 atm

Explanation:

In the process:

Benzene(l) → Benzene(g)

ΔG° for this process is:

ΔG° = -RT ln Q

<em>Where Q = P(Benzene(g)) / P°benzene(l) P° = 1atm</em>

ΔG° = 3700J/mol = -8.314J/molK * (60°C + 273.15) ln P(benzene) / 1atm

1.336 = ln P(benzene) / 1atm

0.26atm = P(benzene)

Right answer is:

<h3>4) 0.26 atm </h3><h3 />
6 0
3 years ago
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zalisa [80]

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7 0
3 years ago
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Calculate the [oh] for 0.46 Hcl
Bad White [126]

Answer:

2.17 e -14

Explanation:

A strong acid like HCl ionize 100 % in water so [H3O+] = 0.46 M

[OH-] = Kw /  [H3O+]

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3 years ago
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insens350 [35]

Answer:

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Explanation:

For most of the elements other than that of hydrogen, the isotopes are named for the mass number.

Example : Carbon atoms with 6 neutrons have mass number of 12 ( as 6\ protons +6\ neutrons=12 ), so they are known as carbon-12.

Given that:

Protons = 6

Neutrons = 7

Mass = 6 + 7 = 13

So the name is Carbon - 13 . The symbol is ^{13}_{6}C

8 0
3 years ago
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