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zvonat [6]
3 years ago
8

Which type of pollution includes CFCs and smog? Air, land, water or volcanic

Biology
2 answers:
pentagon [3]3 years ago
5 0
<span>CFCs and smog are examples of air pollution.

CFCs (containing atoms of carbon, chlorine and fluorine)are a component of aerosols sprays, refrigerants etc. These chemical compounds are non reactive in the lower atmosphere but the CFCs react with UV radiation in the sunlight and release inorganic chlorine. This chlorine is the main cause of the holes present in the ozone shield (shield that protects us from harmful UV rays) in the polar regions.

Smog refers to the haze or fog that occurs as a result of air pollution (caused by burning of fossil fuels etc)</span>
snow_tiger [21]3 years ago
5 0
The answer is B) air pollution
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All instructions for proteins, like hemoglobin, are stored in our _______, which is located in a cell’s ______________. This DNA
svlad2 [7]

Answer:

1. DNA

2. Nucleus

3. mRNA

4. Transcription

5. Nucleus

6. mRNA

7. Cytoplasm

8. Ribosome

9. Translation

10. anti-codons

11. codon

12. amino acids

13. protein

Explanation:

Deoxyribonucleic acid or DNA hold all the instructions that make up an organism. It determines the physical structure and even the function of the different cells that make up all organisms.

The DNA are all stored in the NUCLEUS of cells. Typically, eukaryotic cells have a nucleus except red blood cells. The nucleus has a nuclear envelope that keeps the DNA stored inside but it has nuclear pores that allows it to interact with the cytoplasm.

In order for DNA to be replicated, it needs to be turned into messenger RNA, otherwise known as mRNA. The mRNA decodes the DNA in order for the cell to use the code. The process is called transcription.

Transcription is done within the nucleus. Before the cell can understand what to do with DNA, mRNA transcribes to know what information it needs to produce specidic proteins.

Once transcription is done, it will then bring the information out of the nucleus and into the cytoplasm. The cytoplasm is the viscous gel-like solution that holds the organelles of the cell. In the cytoplasm you have ribsomes.

Ribosomes is where protein synthesis takes place, this is why it is called the protein factory of the cell. It is a molecule that is made up of ribosomal RNA, which direct the chemical processes involved in protein synthesis. For protein synthesis to happen, it will need another type of RNA, which is the tRNA.

tRNA is transfer RNA and they translate the mRNA sequence into proteins. tRNA have amino acids attached to it.

Each 3 bases of the mRNA are collectively known as codons. These codons correspond with specific  tRNA that hold the anticodons. These anticodons code for specific amino acids that they also hold.

When they pair up, the tRNA drop off the amino acid which form a chain with the other tRNA amino acids that complete the code. These chain of monomers then make the protein specific to the DNA code that was copied in the beginning.

3 0
3 years ago
During what phase of mitosis are you first able to see distinct chromosomes
Murrr4er [49]

Answer: Prophase

Explanation:

7 0
3 years ago
Read 2 more answers
How is the energy in ATP released so that it may be used to drive cellular processes?
Kitty [74]
 All life depends on capturing energy from the sun and converting it in to a form that living organisms  can use.
- Two key processes (mirror each other)
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<span>- Cellular respiration (Plants/Animals/energy)</span>
3 0
3 years ago
The mismatch repair system recognizes mismatched base pairs, removes a portion of the DNA strand containing the error, and then
Andre45 [30]

Answer:

It could lead to several later problems in the cell.

Explanation:

Removing a piece of DNA could severely affect the cell but it could also cause nothing. Depending on the part that is damaged, it could codify for a vital protein but it could also be an intron, which are pieces of DNA that don't codify for any protein. This has been recently researched and even though there are introns that could cause some serious trouble, most of them are an unknown matter to nowadays scientists. Anyway, a wrongly repaired sequence could end in a mutation that can potentially damage the cell and therefore the organism.

6 0
4 years ago
What is the main function of the nucleolus? it produces enzymes that are then exported to the lysosomes. it produces cell adhesi
Kisachek [45]
The role of the nucleolus is to make the monomer of of ribosomes, and ribosomes are used in mRNA to make protein. Therefore the nucleolus plays a major role in the process of making proteins for our body. <span />
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