L7 The Endomembrane System

1

Which statement about the smooth endoplasmic reticulum is INCORRECT?

1

The amount of sER can increase or decrease according to a cell's demands.

1

The rough endoplasmic reticulum contains ( ribosomes, nucleic acid ), and is the site of most ( protein, lipid ) synthesis. It also stores protein in the lumen, its ( interior, exterior ).

1

Synthesis of cytoplasmic proteins occurs in the rER.

1

Which statement about the Golgi is NOT correct?

1

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.

1

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 ❌.

exocytosis

Constitutive

Regulated

hormones

1

❌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.

Phagocytosis

Pinocytosis

very specific

receptor mediated

lysosomes

Objectives: • Define what is meant by the endomembrane system • Describe the function of the endomembrane system • Outline the process of exocytosis and endocytosis

L7 The Endomembrane System

Which statement about the smooth endoplasmic reticulum is INCORRECT?

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 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.

The rough endoplasmic reticulum contains ( ribosomes, nucleic acid ), and is the site of most ( protein, lipid ) synthesis. It also stores protein in the lumen, its ( interior, exterior ).

❌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.