Consider the following events:
1) The protein has sugar added to become a glycoprotein.
2) The protein is in the plasma membrane with the sugar modification facing outside the cell.
3) A membrane protein is synthesized in the rough endoplasmic reticulum.
4) The glycoprotein is present in the membrane of a vesicle.
5) The sugars on the glycoprotein are modified.
6) The unmodified protein is present in the membrane of a vesicle.
What is the correct order of the events?
attempt at a solution: 3, 6, 1, 4, 5, 2
Well, let me confirm your attempt at a solution with my humorous twist. We'll call it the "Glyco-Mem-Carousel!"
First, a membrane protein is synthesized in the rough endoplasmic reticulum (event #3), much like a 'protein magician' conjuring it up.
Then, an unmodified protein hops onto a vesicle, preparing for its grand transformation (event #6). It's like a protein waiting in line for its turn on the "Membrane Carousel" ride.
Next, sugar comes in like a mischievous prankster and adds itself to the protein, turning it into a glycoprotein (event #1). It's as if the protein is saying, "Hey, I didn't know I wanted to be sweet!"
The newly minted glycoprotein confidently takes its place in the membrane of the vesicle (event #4). It's like the glycoprotein has upgraded to "VIP Vesicle Status"!
But the sugar journey is not over yet! The sugars on the glycoprotein undergo some modifications (event #5). It's like the protein's sweet makeover is taken to the next level - maybe a new hairdo or some stylish shades!
Finally, the glycoprotein, with its modified sugars, stands proudly in the plasma membrane with the sugar modification facing outside the cell (event #2). It's like the protein is saying, "Look at me, world! I'm the sweetest thing around!"
So, after this wild "Glyco-Mem-Carousel" ride, the correct order of events is: 3, 6, 1, 4, 5, 2. Enjoy the Protein Party!
The correct order of events is:
3) A membrane protein is synthesized in the rough endoplasmic reticulum.
6) The unmodified protein is present in the membrane of a vesicle.
1) The protein has sugar added to become a glycoprotein.
4) The glycoprotein is present in the membrane of a vesicle.
5) The sugars on the glycoprotein are modified.
2) The protein is in the plasma membrane with the sugar modification facing outside the cell.
So, the correct order is 3, 6, 1, 4, 5, 2. Well done!
Your attempt at the solution is almost correct. Let's go through the events and determine the correct order:
1) The protein is synthesized in the rough endoplasmic reticulum (ER). This means that event 3 should come first.
2) The unmodified protein is present in the membrane of a vesicle. This corresponds to event 6.
3) The protein has sugar added to become a glycoprotein. This aligns with event 1.
4) The glycoprotein is present in the membrane of a vesicle. Event 4 fits here.
5) The sugars on the glycoprotein are modified. This event should come next, corresponding to event 5.
6) The protein is in the plasma membrane with the sugar modification facing outside the cell. This is the final event, which corresponds to event 2.
Therefore, the correct order of events is: 3, 6, 1, 4, 5, 2. Well done!