Biology College

Which step measures the concentration of the reaction product?
A. Spectrophotometer
reading
B. Centrifugation
C. Addition of TCA
D. All of the options are correct

Answers

Answer 1
A spectrophotometer measures the number of photons emitted to estimate the intensity of light spectra absorbed and transmitted by a sample. This provides information on the amount of a compound in the sample.

Centrifugation is a mechanical process which involves the use of the centrifugal force to separate particles from a solution according to their size, shape, density, medium viscosity and rotor speed.

Trichloroacetic acid (TCA) precipitation of proteins is commonly used to concentrate protein samples or remove contaminants, including salts and detergents, prior to downstream applications such as SDS-PAGE or 2D-gels. TCA precipitation denatures the protein, so it should not be used if the protein must remain in its folded state (e.g., if you want to measure a biochemical activity of the protein).



Determining the protein concentration in your sample is an important step in any laboratory workflow that involves protein extraction and/or analysis. Knowing how much protein you have can help you compare results from one protein to another and from one experiment to the next.

Related Questions

There are many atoms of Hydrogen in the water on the planet. Do you think those atoms will still be in
existence a million years from now?

Answers

Answer:

The hydrogen atoms in the water on the planet will still be in existence a million years from now because the water we are drinking is already more than a billion years old. Also, the water cycle will continue to produce water through its cycle to make us rain water. The rain water will then be purified for other uses like personal cleaning and washing our everyday things/resources/materials.

Explanation:

Hope this helps :)

BRAINLEST GOES TO WHOEVER ANSWERS CORRECTLY

Answers

I think the answer is 3
I think the answer is 3

Which two statements correctly describe the relationship between
technology and science?
A. New technology can be used to make new discoveries in science
B. New technology can be developed as a result of scientific
discoveries.
C. New technology is more useful than scientific discoveries.
D. New technology serves as a replacement for existing science.

Answers

Answer:

the right answers is A.

Explanation:

the new technologies can help the scientists to discover and work on new scientific discoveries

for example: the microscope before the microscope the world didn't know or clearly see the small organisms so microscope helped

and so the telescope to discover and study beyond the atmosphere without travelling there

hope this help if it does help I'd be happy if you follow and give me the brainliest answer

The two statements that correctly describe the relationship between technology and science is new technology can be used to make new discoveries in science, new technology can be developed as a result of scientific discoveries. The correct options are A and C.

What is technology?

Technology is basically the application of scientific knowledge to the practical goals of human life, or, as it is sometimes recognized to, to the modification and manipulation of the human environment.

Technology is the application of knowledge to achieve practical goals in a predictable and repeatable manner. The term technology can also refer to the outcome of such an endeavor.

Technology is widely used in medicine, science, industry, communication, transportation, and everyday life.

The two correct statements about the relationship between technology and science are that new technology can be used to make new scientific discoveries and that new technology can be developed as a result of scientific discoveries.

Thus, option A and C are correct options.

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Assuming that all of these cells came from the same person, which of the following is true? A. Each cell contains different DNA depending on whether the cell came from the person's mother or father. B. Each cell contains the same DNA, and the same genes are being expressed in each one. C. Each cell contains different DNA depending on the function that the cell performs in the body. D. Each cell contains the same DNA, but different genes are being expressed in each type.

Answers

Assuming that all of these cells came from the same person, the following is true;  Each cell contains the same DNA, but different genes are being expressed in each type; option D

What are cells?

Cells are defined  as the basic unit of life.

All forms of life are composed or exists as singe cells.

Some organisms are composed of many cells while some organisms are only singe cells.

Organisms that are composed of many cells are called multicellular organisms whereas organisms that are composed of just one cell, are called unicellular organisms

All the cells of a unicellular organism such as humans contains the same DNA of that individual. However, the genes in the DNA of cells are expressed differently according to the specialization of the cell.

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3) Why should we store seed in moisture proof polythene bags ​

Answers

The orthodox seeds can be put in sealed moisture-proof containers after being dried to the proper moisture content. This avoids the need for prolonged dehumidification.

When refrigeration is used to maintain controlled low temperatures and moisture-proof containers, long-term storage is most successful. When refrigeration is used to maintain controlled low temperatures and moisture-proof containers, long-term storage is most successful. Generally speaking, storage life shortens as seed moisture content rises. Low moisture level—below 4%—can also harm seeds due to excessive desiccation or result in hard seededness in some crops. If seeds are kept at high moisture content, losses could be very quick due to mould growth. The seed will mold as a result of the retained moisture, ruining the sample. Keep them cold and dry to increase their shelf life. Seeds quickly absorb moisture again. Keep seeds in airtight containers like tin cans or glass jars with tight fitting lids to maintain dryness. Include a substance that absorbs moisture.

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Help pls !!!!!!!! I’m very confused

Answers

Answer:

Mols enzymes are proteins

The catalyse metabolic

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