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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: - In a grassland ecosystem, if the number of primary producers is approximately 6
- Identify the plasmid
- Teeth of rabbit are
- An example of edible underground stem is
- The overall goal of glycolysis, kerbs cycle and the electron transport system
Topics: Cell Structure and Functions
(413)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a grassland ecosystem, if the number of primary producers is approximately 6
- Identify the plasmid
- Teeth of rabbit are
- An example of edible underground stem is
- The overall goal of glycolysis, kerbs cycle and the electron transport system
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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