Question

question 3 (4 points)
match the cell parts to their function:
column a

1. ___ ribosomes
2. ___ endoplasmic reticulum
3. ___ golgi apparatus
4. ___ (transport) vesicles

column b
a this organelle transports proteins made by ribosomes, like a conveyor belt
b these structures take proteins from the golgi apparatus and transport them to the outside of the cell
c this organelle modifies and packages proteins into transport vesicles
d these structures manufacture protein molecules according to genetic instructions from the nucleus

Explanation:

• Ribosomes: They are the sites of protein synthesis. They read the genetic code from the nucleus (in the form of mRNA) and assemble amino acids into proteins. So, they match with description \(d\).
• Endoplasmic Reticulum: The rough endoplasmic reticulum has ribosomes attached to it. After proteins are made on the ribosomes (attached to the rough ER), the ER helps in transporting these newly - made proteins. It acts like a conveyor belt for the proteins made by ribosomes, so it matches with \(a\).
• Golgi Apparatus: It receives proteins from the endoplasmic reticulum. It modifies these proteins (by processes like adding sugar groups - glycosylation) and then packages them into transport vesicles. So, it matches with \(c\).
• Transport Vesicles: These vesicles bud off from the Golgi apparatus. Their function is to take the proteins that have been processed and packaged by the Golgi and transport them to the outside of the cell (in the case of secreted proteins) or to other organelles. So, they match with \(b\).

Answer:

1. \(d\)
2. \(a\)
3. \(c\)
4. \(b\)