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.
A prokaryotic cell does not contain well-defined membrane-bound organelles. Most of the organelles which a eukaryotic cell contains are absent in a prokaryotic cell. The lysosome is one among them. Lysosomes are small membrane-bound sac-like structures which release digestive enzymes that break down food. They act as a waste bin of the cell and keep the cell clean. Lysosomes are present in eukaryotic cells but a prokaryotic cell lacks them.