Although we tend to think of the cell membrane as a smooth covering for a cell, the membrane can undergo dramatic shape changes as the cell contents (the cytosol) oozes around underneath the membrane. As a result, the cell membrane can curve abruptly to allow a projection or an indentation in the cell surface (see photo). Cells facilitate the curving of the membrane by swapping out the acyl chains of membrane phospholipids. Which would have a greater effect on the ability of the membrane to curve: replacing saturated acyl chains with unsaturated acyl chains or replacing unsaturated acyl chains with saturated acyl chains?
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.
Although we tend to think of the cell membrane as a smooth covering for a cell, the membrane can undergo dramatic shape changes as the cell contents (the cytosol) oozes around underneath the membrane. As a result, the cell membrane can curve abruptly to allow a projection or an indentation in the cell surface (see photo). Cells facilitate the curving of the membrane by swapping out the acyl chains of membrane phospholipids. Which would have a greater effect on the ability of the membrane to curve: replacing saturated acyl chains with unsaturated acyl chains or replacing unsaturated acyl chains with saturated acyl chains?
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