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Question
The cell membrane of a cell is made up of proteins and lipids. Which cell organelles help in the synthesis of cell membrane? Write the path of these compounds from their site of synthesis to the cell membrane and show this through a labelled diagram.
![Question 14 — The cell membrane - Cell — The Building Bl - [Teachoo] - Questions at the end of the chapter](https://cdn.teachoo.com/3b1baaee-d7f0-4086-add9-2f658e2626a3/image-a-pathway-diagram-showing-proteins-and-lipids-made-in-the-endoplasmic-reticulum-then-moving-to-the-golgi-apparatus-for-packing-into.webp)
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Answer
ER and Golgi apparatus make and ship membrane materials.
Explanation
- The ER makes proteins and lipids (the membrane materials).
- These go to the Golgi apparatus to be modified and packed.
- The Golgi packs them into vesicles.
- Vesicles travel to the membrane and join it.
Path to the Cell Membrane
Endoplasmic reticulum (makes proteins and lipids)
↓
Golgi apparatus
Modifies and packs them into vesicles.
↓
Vesicles fuse with the cell membrane
ER makes, Golgi packs, vesicles deliver to the membrane.
Making the Cell Membrane
ER
Smooth ER makes lipids and the rough ER makes proteins.
↓
Golgi
Modifies, sorts and packs them into vesicles.
↓
Membrane
Vesicles fuse with and add to the cell membrane.
