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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: - Which one of the following immunoglobulins does constitute the largest
- Select the correct statement with respect to diseases and immunisation?
- Which one of the following in birds, indicates their reptilian ancestry?
- Chlamydomonas occurs in
- Linnaeus evolved a system of nomenclature called
Topics: Cell Structure and Functions
(413)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following immunoglobulins does constitute the largest
- Select the correct statement with respect to diseases and immunisation?
- Which one of the following in birds, indicates their reptilian ancestry?
- Chlamydomonas occurs in
- Linnaeus evolved a system of nomenclature called
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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