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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: - Glycolysis consists of
- A decrease in blood pressure volume will not cause the release of
- The Most extensively used bacteria in genetic engineering is
- Glycolysis leads to the formation of 2 molecules of
- A pathway common to both anaerobic and aerobic metabolism is
Topics: Cell Structure and Functions
(413)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Glycolysis consists of
- A decrease in blood pressure volume will not cause the release of
- The Most extensively used bacteria in genetic engineering is
- Glycolysis leads to the formation of 2 molecules of
- A pathway common to both anaerobic and aerobic metabolism is
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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