Exploring the Endomembrane System

The video explains the endomembrane system, a network of organelles that manage cell products like proteins and lipids. It covers the roles of the rough and smooth endoplasmic reticulum, the Golgi apparatus, and vesicles. The rough ER, with ribosomes, produces proteins, while the smooth ER detoxifies chemicals and produces lipids. The Golgi apparatus packages and distributes these products, sometimes modifying them into enzymes or hormones. The system adapts to different cell needs, such as more rough ER in muscle cells for protein synthesis and more smooth ER in liver cells for detoxification.

Which of the following is NOT a component of the endomembrane system?

• Golgi apparatus

• Mitochondria

• Endoplasmic reticulum

• Nuclear envelope

What gives the rough endoplasmic reticulum its 'rough' appearance?

• Presence of vesicles

• Presence of ribosomes

• Presence of enzymes

• Presence of lipids

What is the primary function of ribosomes on the rough ER?

• Transport of vesicles

• Detoxification of chemicals

• Production of proteins

• Production of lipids

Which of the following is a function of the smooth endoplasmic reticulum?

• Lipid production

• Modification of proteins

• Packaging of proteins

• Protein synthesis

Why is the smooth endoplasmic reticulum called 'smooth'?

• It produces smooth proteins

• It lacks ribosomes

• It has a smooth texture

• It is involved in smooth muscle contraction

What is the main role of the Golgi apparatus in the cell?

• Synthesis of proteins

• Packaging and distribution of cell products

• Detoxification of chemicals

• Production of lipids

What analogy is used to describe the Golgi apparatus in the cell?

• Post office

• Warehouse

• Factory

• Library

What is the function of lysosomes produced by the Golgi apparatus?

• Breakdown of vesicle contents

• Detoxification of chemicals

• Production of lipids

• Transport of proteins

Which type of cell is likely to have more rough ER?

• Muscle cell

• Nerve cell

• Skin cell

• Liver cell

What is the common feature of the endomembrane system in all eukaryotic cells?

• Different organelles

• Similar movement of materials

• Presence of more smooth ER

• Presence of more rough ER