Oxygen comes from theenvironment and carbondioxide in the end returns tothe environment. How dosmall animals solve theproblem of taking away andbringing these moleculesfrom/to their cells? Why isn'tthat solution possible forlarger animals?
Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
Oxygen comes from the
environment and carbon
dioxide in the end returns to
the environment. How do
small animals solve the
problem of taking away and
bringing these molecules
from/to their cells? Why isn't
that solution possible for
larger animals?
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