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Tpy6a [65]
2 years ago
8

Which structure is the arrow pointing to? What is the function of this organelle?

Chemistry
2 answers:
Vesnalui [34]2 years ago
8 0

Explanation:

<h3>1.) The arrow pointing to the nucleus. A cell is the smallest unit in an organism.</h3><h3>2.) The nucleus controls and regulates the activities of the cells and carries the genes, structures that contain the hereditary information.</h3>
STatiana [176]2 years ago
7 0

answer 1. The arrow is pointing to the "nucleus."

Explanation:

A cell is the smallest unit in an organism. It mainly functions to provide structure to the human body, thus it is called "the building blocks of life."

There are 6 organelles in a cell and these are Nucleus, Ribosomes, Endoplasmic Reticulum, Golgi Apparatus, Chloroplasts, and Mitochondria.

The arrow is pointing to the cell's nucleus in the image above. This is an organelle that is enclosed in a membrane. It is where you can find the deoxyribonucleic acid or the DNA, which is essential for hereditary function. It also coordinates activities in the cell, such as metabolism, synthesis of proteins, cell division.

Remember, not all cells have a nucleus. Only eukaryotic cells have a nucleus. These cells are considered more advanced.

2. An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.

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3 years ago
A 0.245-L flask contains 0.467 mol co2 at 159 °c. Calculate the pressure using the ideal gas law.
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Answer:

Pressure, P = 67.57 atm

Explanation:

<u>Given the following data;</u>

  • Volume = 0.245 L
  • Number of moles = 0.467 moles
  • Temperature = 159°C
  • Ideal gas constant, R = 0.08206 L·atm/mol·K

<u>Conversion:</u>

We would convert the value of the temperature in Celsius to Kelvin.

T = 273 + °C

T = 273 + 159

T = 432 Kelvin

To find the pressure of the gas, we would use the ideal gas law;

PV = nRT

Where;

  • P is the pressure.
  • V is the volume.
  • n is the number of moles of substance.
  • R is the ideal gas constant.
  • T is the temperature.

Making P the subject of formula, we have;

P = \frac {nRT}{V}

Substituting into the formula, we have;

P = \frac {0.467*0.08206*432}{0.245}

P = \frac {16.5551}{0.245}

<em>Pressure, P = 67.57 atm</em>

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