Heart,lungs,and Liver Are Examples of Functional Units Called

question 31

Multiple Choice

Heart,lungs,and liver are examples of functional units called

• A)tissues.
• B)organelles.
• C)systems.
• D)histological entities.
• E)organs.

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Definitions:

Ribosomes

Molecular machines within cells that synthesize proteins by translating messenger RNA into polypeptide chains.

mRNA Codons

Sequences of three nucleotides in messenger RNA that specify the addition of a particular amino acid to a growing polypeptide chain during protein synthesis.

DNA Triplets

Sequences of three nucleotides in DNA that code for a specific amino acid or a start/stop signal in protein synthesis.

ATG

A codon in genetics that signals the start of a protein-coding sequence in DNA or RNA.