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umka21 [38]
3 years ago
7

What is the main function of a selectively

Biology
2 answers:
WARRIOR [948]3 years ago
8 0
The answer is C, the membrane is in charge of what enters and leaves the cell
m_a_m_a [10]3 years ago
7 0
Regulates what enters and leaves the cell
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Complete the following vocabulary exercise related to the process of translation of mRNA to protein by the ribosome. Match the w
schepotkina [342]

The answers;

1. Termination. Out of the 64 codons, UAG, UAA, and UGA are the stop codons that terminate translation when encountered by the ribosome. These three do not code for any amino acid but rather cause the translation complex to dislocate.


2. Translation. In this process, the ribosome ‘reads’ the codon and brings in a t-RNA with an anticodon to the codon. This tRNA carries a specific amino acid (for that codon) and engages in the P-site of the ribosome. The amino acid is taken from the t-RNA and used to elongate the polypeptide chain being formed. Thereafter the empty t-RNA dislocates.


3. Aminoacyl-tRNA synthetase. When a tRNA brings in an amino acid to the initiation complex, it is dislocated when ‘empty’. Aminoacyl-tRNA synthetase then catalyzes the reattachment of another amino acid through a chemical reaction called esterification. The cognate tRNA then become an aminoacyl-tRNA.


4. tRNA . Every tRNA has an amino acid attached to it. The type of amino acid (out of the 22 amino acids) is determined by the anticodon on the tRNA. There are many codons that are amino acids meaning that there are redundant codons that specify for the same amino acid.


5. Initiation. Initiation begins by the formation of an initiation complex. This complex is comprosed by the two subunits of the ribosome, and the mRNA. The complex becomes compelete when a Met-tRNA (a tRNA with a methionine amino acid) engages the P-site and then translation begins.


7 0
3 years ago
Which statement best compares photosynthesis and cellular respiration?
ad-work [718]
C because you need sunlight to use photosynthesis
4 0
3 years ago
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The breakdown of food via enzymatic reactions is known as __________.
r-ruslan [8.4K]
I believe you're looking for "chemical digestion".

Chemical digestions is where food that we ate is digested into simpler and soluble molecules that can be absorbed by our body. Enzymes are used as a catalyst to speed up the reaction.

One example is the digestion of lipids. Enzyme named lipase is used to speed up the digestion of lipids into 3 fatty acid molecules and 1 glycerol. This way, our body can absorb these simple molecules, and use them in order to make our body function.

On the other hand, physical digestion does not include enzymes, such as chewing in our mouth, therefore, don't mix them up!
4 0
3 years ago
During a natural disaster, part of a plant was damaged. If the plant can no longer grow, and produce new root cells, which part
Lorico [155]

Answer: c

Explanation:

the meristem is where the growth occurs.

8 0
3 years ago
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What is the ability to adjust and maintain a stable internal environment?
Elena L [17]
I believe the answer is homeostasis :)
8 0
3 years ago
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