Question

packing and transporting of lipid and protein molecules by

a.) by endoplasmic reticulam
b.) by mitochondria
c.) by Golgi body
d.) by plasma membrane ​

Answer 1

Answer:

a) by plasma membrane

Explanation:

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Answer 2

Answer:

Future directions

Cellular lipid transport is a fundamental process essential to all cell growth, division, and differentiation. Our understanding of lipid transport has changed markedly in the last 5 years, during which the number of genes implicated in the processes have grown from a few to several dozen. Significant advances have followed the identification of mammalian cell lines, yeast, and bacterial strains with defects in lipid traffic. In addition to forward genetic screens, reverse genetic screens are becoming more common in both simple eukaryotes and mice. The identification of human diseases with lesions in lipid traffic continues to make additional important tools, and cell lines, available for study. Advances in reconstitution of lipid traffic in permeabilized cells and cell-free systems now allow for more precise and critical tests of protein function in transport processes. The application of fluorescent probes continues to provide new insights and real-time images of selected aspects of lipid transport. The examination of lipid transport processes is now firmly rooted in the manipulation of mutant cells, genes, and gene products. However, there remains much to be accomplished. Future studies need continued focus on the development of additional genetic tools. For many of the lipid trafficking processes described in this chapter there are still no mutants available, and a concerted effort must be made to develop novel selections and screens that attack the voids in our understanding. The current genomic information and the ease of manipulating genes in heterologous systems now also allow for intuitive approaches and reverse genetic screening to be applied freely and aggressively. The mechanisms of intracellular lipid traffic in membrane assembly have historically been difficult to elucidate, but recent advances are grounds for much optimism. This discipline now provides numerous new research opportunities and rewards for those who tackle this long-standing problem of cell biology and biochemistry.