A Cytologist Is Examining a Tissue Under an Electron Microscope

question 48

Multiple Choice

A cytologist is examining a tissue under an electron microscope.He notices in particular that the endoplasmic reticulum of each cell is extremely rough in appearance and of course knows that the rough appearance is because of the ribosomes embedded there.He is curious about why there are so many ribosomes.You can help.Your response would be,

• A)"This tissue exports lipids and is very involved with mRNA production,which of course is used in protein synthesis."
• B)"This tissue exports proteins to other areas of the body."
• C)"This tissue has obviously been exposed to the new protein diet supplements that are so popular these days and has been recruited to make more protein."
• D)"This tissue exports various nucleic acids,hence the large number of ribosomes present on the endoplasmic reticulum in each of those cells."

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