It has been reported [1, 2] that women have a better sense of smell than men. However, if you look at [2], the study being reported on only involved 20 men and 20 women - which is a rather tiny sample size to make any conclusions if you ask me.
Ribosomes are found in prokaryotic and eukaryotic cells; in mitochondria, chloroplasts and bacteria. Those found in prokaryotes are generally smaller than those in eukaryotes. Ribosomes in mitochondria and chloroplasts are similar in size to those in bacteria.ibosomes are found âfreeâ in the cytoplasm or bound to the endoplasmic reticulum (ER) to form rough ER. In a mammalian cell there can be as many as 10 million ribosomes. Several ribosomes can be attached to the same mRNA strand, this structure is called a polysome. Ribosomes have only a temporary existence.
Besides the absence of nucleus in prokaryotes, the lower level of cell compartmentalization is the main difference compared to eukaryotes. In prokaryote cells the ribosomes are scattered in the cytoplasm, so it is correct to say that the protein synthesis in prokaryotes takes place in the cytoplasm. In eukaryotes the ribosomes also reside in the cytoplasm, but could be also found bound to the endoplasmic reticulum (ER). The membranes of the endoplasmic reticulum form a complex and continuous network in the inner core of the cytoplasm and is both to the outer membrane of the nucleus and with the plasma membrane.