Microbiology - Micro Organisms - Discussion

Discussion Forum : Micro Organisms - Section 1 (Q.No. 9)
9.
Which of the following is not true for prokaryotic organism?
Nucleus is not bounded by nuclear membrane
Chromosomes does not contain histones
80S ribosomes are distributed in cytoplasm
Cell wall contains peptidoglycan as one of the major component
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Firi Tekalign said:   9 years ago
Please see it again. Because in Q8, if "70s ribosome present in. " is true how we can give for " 80s ribosome. " in prokaryote is become false?

Geetika said:   1 decade ago
S stands for sedimentation coefficient defined as how fast a cell organelle sediment in ultra centrifuge. As sedimentation coefficient are not additive so that 50s plus 30s is not equal to 80s but it is 70s[prokaryotic].

Darakhshan said:   1 decade ago
In eukaryotes, the complete 80S monosome comprises a 40S small subunit (SSU) that includes the 18S rRNA, and a 60S large subunit (LSU) that includes the 28S and 5S rRNAs.


Ribosomes in Prokaryotes are 70S, where each one comprises 30S (small) and 50S (large) subunits. 50S further comprises 5S subunit of RNA along with subunits of 23S RNA.

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