Which of the following cell sructure contains the highest concentration of RNA?
Correct answer: C. Nucleolus
- A. Centriole
- B. Mitochondria
- C. Nucleolus
- D. Nucleus
Explanation
The correct answer is the nucleolus. It functions as the primary site for the synthesis and assembly of ribosomal RNA (rRNA), which is a crucial component of ribosomes responsible for protein synthesis. This active production results in the nucleolus having the highest concentration of RNA in the cell.Centrioles are involved in organizing microtubules and cell division, thus they do not contain RNA. Mitochondria possess their own RNA for mitochondrial protein synthesis, but the overall concentration is far less compared to the nucleolus. The nucleus houses various types of RNA, but the nucleolus within it is specifically dedicated to rRNA, leading to a higher concentration of RNA than in the rest of the nucleus.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Cell Structure and Function questions
The number of nuclear pores is highly variable in eukaryotic cells because of:
Enzymes that are integral part of ribosomes are involved in the synthesis of which of the following molecules?
Which of the following organelles is not bound by a membrane?
Which of the following is false about the sarcoplasmic reticulum?
Which one of the following is involved in lipid metabolism?8
Sarcoplasm is different from cytoplasm as: