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Which one of the cell organelles is not enclosed by any membrane?
Options
(a) lysosome
(b) ribosome
(c) mitochondria
(d) plastid
Correct Answer:
ribosome
Explanation:
Ribosomes are naked ribonucleoprotein protoplasmic particles which function as the site for protein synthesis. Therefore they are popularly known as protein factories. Ribosomes are produced in nucleolus and occur on nuclear membrane & RER. It is also present in cytoplasm in prokaryotes and eukaryotes. Chemically ribosome is made up of rRNA (60%) protein (40%). As ribosomes, nucleolus and centrioles are also membrane less cell organelles.
Related Questions: - The two sub-units of ribosome remain united a critical ion level of
- Vegetative propagation by leaves occurs in
- Tonoplast is the membrane surrounding the
- Which one of the following is wrong about Chara?
- How would you differentiate between apoplast and symplast
Topics: Cell Structure and Functions
(413)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The two sub-units of ribosome remain united a critical ion level of
- Vegetative propagation by leaves occurs in
- Tonoplast is the membrane surrounding the
- Which one of the following is wrong about Chara?
- How would you differentiate between apoplast and symplast
Topics: Cell Structure and Functions (413)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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