29) A cell with a predominance of free ribosomes is most likely A) primarily pro

Question

29) A cell with a predominance of free ribosomes is most likely A) primarily producing proteins for secretion B) primarily producing proteins in the cytosol C) constructing an extensive cell wall or extracellular matrix D) enlarging its vacuole 0) Which structure is the site of the synthesis of proteins that may be exported from the cell? A) rough ER B) plasmodesmata C) Golgi vesicles D) free cytoplasmic ribosomes 31) Tay-Sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large, complex, undigested lipids. Which cellular organelle must be involved in this condition? A) the endoplasmic reticulum B) the Golgi apparatus C) the lysosome D) mitochondrion

Explanation / Answer

29. a cell with predominance of free ribosomes is most likely primarily producing proteins in the cytosol.

free ribosomes are necessary for their internal cellular activity.

30. rough ER is the site of synthesis of proteins that may be exported from the cell.

rough ER contains ribosomes which produce and assemble proteins and when enough proteins have been made they are pinched off in vesicles.

31. lysosomes is involved in tay -sachs condition. this inherited disoder occurs due to mutation in alpha subunit of enzyme beta exoaminidase A which is found in lysosomes. lysosomes are involved in breakdown of large molecules for recycling in the cell.

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