Which of the following is true about heterogeneous nuclear RNA? it is more common in prokaryotes than in eukaryotes it contains introns, but no exons it contains more exons than introns it contains exons, but no introns it contains more introns than exons
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.
Which of the following is true about heterogeneous nuclear RNA?
- it is more common in prokaryotes than in eukaryotes
- it contains introns, but no exons
- it contains more exons than introns
- it contains exons, but no introns
- it contains more introns than exons
Ribonucleic acid (RNA) has several types in both eukaryotes and prokaryotes. The RNA can be a genetic material too, like in some viruses. RNA performs a diverse range of functions in the cells.
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