Please answer this.
A membraneless organelle which does not occur in cells of higher plants is =
a) Ribosome
b) Centriole
c) Chloroplast
d) Mitochondrion
Answers
A ribosome is the only one which doesn't have a membrane so A
Answer:
A membraneless organelle which does not occur in cells of higher plants is Option a) Ribosome.
Explanation:
The ribosome exists as a complex molecule created of ribosomal RNA molecules and proteins that comprise a factory for protein synthesis in cells. In 1955, George E. Palade uncovered ribosomes and described them as small particles in the cytoplasm that exist preferentially associated with the endoplasmic reticulum membrane. Ribosomes, also named Palade granules, exist as macromolecular machines, located within all cells, that perform biological protein synthesis. Ribosomes link amino acids together in the order determined by the codons of messenger RNA molecules to form polypeptide chains.
Membraneless organelles exist in different compartments within a cell that exists not enclosed by a traditional lipid membrane and instead form through a technique named liquid-liquid phase separation. Approximately 20 membraneless organelles exist understood, as well as several more membraneless compartments. Seeing the interior cellular environment as a fluid that includes multiple liquid droplets functioning as membraneless organelles observes a turning point in our understanding of cell biology.
Hence, A membraneless organelle which does not occur in cells of higher plants is Option a) Ribosome.
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