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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 of the following show higher rate of respiration
- 2,4-D is an effective
- A competitive inhibitor of succinic dehydrogenase is
- The pairing of homologous chromosomes in meiosis is known as
- The loss of one single chromosome creates a condition called
Topics: Cell Structure and Functions
(413)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following show higher rate of respiration
- 2,4-D is an effective
- A competitive inhibitor of succinic dehydrogenase is
- The pairing of homologous chromosomes in meiosis is known as
- The loss of one single chromosome creates a condition 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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