Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Which of the following organelles is primarily responsible for the synthesis of proteins in eukaryotic cells?
A
Lysosome
B
Mitochondrion
C
Golgi apparatus
D
Ribosome
Verified step by step guidance
1
Understand the function of each organelle listed in the question: Lysosomes are involved in digestion and waste processing, mitochondria are responsible for energy production (ATP synthesis), and the Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or use within the cell.
Recall that ribosomes are the organelles responsible for protein synthesis. They can be found either floating freely in the cytoplasm or attached to the endoplasmic reticulum, forming the rough ER.
Recognize that ribosomes translate messenger RNA (mRNA) into polypeptide chains during the process of translation, which is a key step in protein synthesis.
Note that ribosomes are not membrane-bound organelles, unlike lysosomes, mitochondria, and the Golgi apparatus. They are composed of ribosomal RNA (rRNA) and proteins.
Conclude that the correct answer to the question is ribosome, as it is the organelle primarily responsible for synthesizing proteins in eukaryotic cells.