Which statement about the smooth endoplasmic reticulum is INCORRECT?
The sER metabolises carbohydrates.
The sER synthesizes lipids.
The sER detoxifies drugs and poisons (non-nutritional chemicals).
The sER stores calcium.
The sER synthesizes proteins.
The amount of sER can increase or decrease according to a cell's demands.
The rough endoplasmic reticulum contains ribosomes nucleic acid( ribosomes, nucleic acid ), and is the site of most protein lipid( protein, lipid ) synthesis. It also stores protein in the lumen, its interior exterior( interior, exterior ).
Synthesis of cytoplasmic proteins occurs in the rER.
Which statement about the Golgi is NOT correct?
The Golgi has polarity, and is responsible for processing proteins from the rER.
The Golgi glycosolates proteins (adds sugars) and modifies simple carbohydrates to make complex carbohydrates.
Vesicles tagged for the plasma membrane exit the trans side of the Golgi.
Proteins destined to return to the rER to maintain its structure leave the Golgi in vesicles via the cis face.
The Golgi tags proteins so they are directed to the proper vesicle, and then tags those vesicles to direct them to the correct target compartment.
There are two pathways from the Golgi out of the cell. These ❌ pathways can be continuous and unregulated, or "❌" pathways (e.g. proteins transported to the ECM) or they can be "❌" pathways, for example the release of ❌.
❌s is a type of endocytosis which is selective, and uptakes "food" to "eat". ❌ however is the non-selective uptake of solutes. Endocytosis can also uptake ❌ molecules via ❌ endocytosis. All of these pathways join their vesicles with ❌ for digestion.