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NNADVOKAT [17]
3 years ago
12

A cell is a complex system. Like most systems, a cell contains a boundary that separates things that are inside the system from

those
that are outside of the system. Which part of the cell functions as a system boundary?
Biology
1 answer:
kondaur [170]3 years ago
6 0

Answer:

cell membrane

Explanation:

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Oduvanchick [21]
Besides cell walls, features often found in plant cells but not in animal cells are: <span>·     Chloroplast- specialized organelles in which  light energy is converted to chemical energy during the photosynthesis(chloroplasts contain chlorophylls a and b-green color of the plant)
</span> <span>·     Vacuole-central organelle filled with fluid for storing food (sometimes it is found in animals but rare)</span><span><span>·     </span>in animals but rare)</span>
<span><span>·     </span>Starch-energy storage of plants (it is glycogen in animals)</span> <span> </span>
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4 years ago
I need a paragraph explaining what dna and rna is <br><br><br><br> plssshelp fast
nikitadnepr [17]

Answer:

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5 0
3 years ago
Which two codons in the mRNA represent the amino acid phenylalanine
Trava [24]

Answer:

UUU and UUC

Explanation:

Information that encodes certain functional products called PROTEIN are present in the DNA molecule. However, the information needs to be expressed via the processes of transcription and translation. Transcription is the synthesis of a mRNA using a DNA template.

The mRNA then undergoes translation, where it is read in a group of three nucleotides called CODON. Each CODON specifies a particular amino acid. Due to the degenerate nature of the genetic code, more than one codon can specify one amino acid.

Hence, in the case of phenylalanine amino acid, codons UUU and UUC both specify it. This means that whenever UUU and UUC are read during translation, a phenylalanine is added to the peptide chain.

8 0
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Answer:

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