Question

check for understanding i - plant cells
plant science basics: plant processes
5 of 5
which of the following houses the nucleolus, nuclear envelope and chromosomes and is surrounded by a phospholipid bilayer?
rough endoplasmic reticulum
nucleus
smooth endoplasmic reticulum
central vacuole

Explanation:

• Rough endoplasmic reticulum: It has ribosomes on its surface and is involved in protein synthesis. It does not house the nucleolus, nuclear envelope, and chromosomes.
• Nucleus: It is surrounded by a nuclear envelope (a phospholipid bilayer - like structure). Inside the nucleus, there is a nucleolus and chromosomes (which carry genetic information).
• Smooth endoplasmic reticulum: It is involved in lipid synthesis and detoxification processes. It does not house the components mentioned in the question.
• Central vacuole: In plant cells, it mainly functions in storage (of water, nutrients, waste products etc.) and maintaining cell turgor. It does not house the nucleolus, nuclear envelope, and chromosomes.

Answer:

Nucleus