Final answer:
The statement that all cells use ribosomes to synthesize proteins from an RNA template is true. Ribosomes are crucial structures for protein synthesis in every cell, translating mRNA into amino acid sequences to form proteins.
Step-by-step explanation:
All cells do indeed use ribosomes to synthesize proteins from an RNA template. This statement is true. Ribosomes are essential cellular structures found in every type of cell, from bacteria to human cells. They are composed of a large and a small subunit, which are themselves made up of ribosomal RNA (rRNA) and proteins.
Ribosomes bind to messenger RNA (mRNA) and translate the encoded information into a polypeptide chain during the process of protein synthesis. This process is known as translation, where the sequence of nitrogenous bases in the mRNA is used as a template to assemble the corresponding sequence of amino acids into a protein.
Protein synthesis is fundamental for the functioning of all cells, making ribosomes ubiquitous in cellular biology. They can be found either floating freely in the cytoplasm or attached to the endoplasmic reticulum, forming the rough ER due to their studded appearance. This is where protein synthesis takes place, utilizing the genetic instructions transcribed from DNA into mRNA.