Select the part whose main job is to help an animal cell make proteins
The Correct answer and Explanation is:
The part of the animal cell whose main job is to help make proteins is the ribosome.
Correct Answer: Ribosome
Explanation:
Proteins are essential molecules that perform a variety of functions in the body, including acting as enzymes, structural components, and signaling molecules. In an animal cell, ribosomes are responsible for protein synthesis, a process known as translation.
Ribosomes can either be free-floating in the cytoplasm or attached to the endoplasmic reticulum (ER), forming what is called the rough ER. The main role of the ribosome is to read the messenger RNA (mRNA), which carries the genetic information transcribed from DNA in the nucleus. The mRNA provides a template, and the ribosome assembles amino acids in the correct order to form a specific protein based on this template.
The ribosome itself is composed of ribosomal RNA (rRNA) and proteins. It consists of two subunits: a large subunit and a small subunit. These subunits come together during protein synthesis to read the mRNA. Transfer RNA (tRNA) molecules bring the appropriate amino acids to the ribosome, and the ribosome links these amino acids together to form a polypeptide chain, which eventually folds into a functional protein.
Ribosomes play a critical role in cellular function because proteins are involved in almost every process within the cell. For instance, enzymes, which are proteins, catalyze biochemical reactions. Structural proteins help maintain cell shape, and signaling proteins communicate with other cells.
If ribosomes are defective or malfunctioning, it can lead to diseases or cellular dysfunction because the proteins that are synthesized may not function properly or may not be made at all. Thus, the ribosome is vital to the survival and proper functioning of animal cells.