According to the Endosymbiotic Theory, infoldings in the cell membrane of an ancestral prokaryotic cell gave rise to endomembrane components, including the nucleus, endoplasmic reticulum and golgi apparatus in what would become eukaryotic cells. The evolution of endomembrane components provided for compartmentalization in eukaryotes, leading to more efficiency in cell processes. The endomembrane system includes the golgi apparatus. Which statement BEST describes the role of the golgi apparatus?

A) The golgi apparatus contains enzymes break toxic metabolic wastes
B) The golgi apparatus transports proteins to appropriate sites in the cell.
C) The golgi apparatus modifies proteins for export from the cell or transport to other parts of the cell.
D) The golgi apparatus serves a role in protein folding, lipid and steroid synthesis, carbohydrate metabolism and calcium storage
Eliminate

The dna in a cell’s nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell. for example, consider these two proteins: phosphofructokinase (pfk) is an enzyme that functions in the cytoplasm during glycolysis. insulin, a protein that regulates blood sugar levels, is secreted from specialized pancreatic cells. assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations. for each protein, identify its targeting pathway: the sequence of cellular locations in which the protein is found from when translation is complete until it reaches its final (functional) destination. (note that if an organelle is listed in a pathway, the location implied is inside the organelle, not in the membrane that surrounds the organelle.)

Draw the structure of dna nucleotide with adenine as nitrogenous base

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?