103k views
3 votes
Imagine that 32 million histone octamers are required to package the DNA in a human cell. How many histone proteins must pass through each nuclear pore complex per second in a cell that has 3000 nuclear pores and divides once per day?

User Champoul
by
7.1k points

1 Answer

1 vote

Final answer:

In a cell that has 3000 nuclear pores and divides once per day, approximately 9.3 histone proteins must pass through each nuclear pore complex per second.

Step-by-step explanation:

In order to calculate the number of histone proteins that must pass through each nuclear pore complex per second, we first need to determine how many histone octamers are required to package the DNA in a human cell.

Given that there are 32 million histone octamers required to package the DNA in a human cell, and assuming that the number of histone proteins in each histone octamer is 8, we can calculate the total number of histone proteins as follows:

Total number of histone proteins = number of histone octamers * 8 = 32 million * 8 = 256 million histone proteins.

Next, we need to calculate how many histone proteins must pass through each nuclear pore complex per second in a cell that has 3000 nuclear pores and divides once per day (24 hours).

To do this, we divide the total number of histone proteins by the number of seconds in a day:

Histone proteins passing through each nuclear pore complex per second = total number of histone proteins / (number of nuclear pores * number of seconds in a day)

= 256 million / (3000 * 24 * 60 * 60)

Using this equation, we find that approximately 9.3 histone proteins must pass through each nuclear pore complex per second in the given cell.

User Derekcohen
by
8.3k points