Final answer:
Ribosomes are essential cellular structures responsible for translating mRNA into proteins, a process fundamental to all cellular functions. They consist of two subunits that assemble on mRNA to commence protein synthesis. Option c.
Step-by-step explanation:
The correct answer to the question is that ribosomes facilitate protein synthesis. Ribosomes are essential structures found in all cells that play a pivotal role in the formation of proteins. They are composed of ribosomal RNA (rRNA) and proteins, forming two distinct units: a large subunit and a small subunit.
When a cell needs to make a protein, these subunits come together to translate the coded information from messenger RNA (mRNA) into a chain of amino acids, effectively building the protein molecule. This process occurs either in the cytoplasm or on the surface of the endoplasmic reticulum, in what is known as the rough ER.
Ribosomes are indispensable for the cellular function since proteins are crucial for various cellular processes including enzymes, hormones, antibodies, pigments, structural components, and surface receptors.
While all cells have ribosomes, cells that produce a large amount of protein, such as those in the pancreas, will contain a higher number of ribosomes, illustrating the importance of ribosomes in cellular biology. So Option c