Question

membrane enclosures
which organelle resembles stacks of hollow pancakes?
peroxisome
nucleus
smooth endoplasmic reticulum (er)
golgi apparatus

Explanation:

The Golgi apparatus is often described as resembling stacks of hollow pancakes. It consists of flattened, membrane - bound sacs called cisternae arranged in stacks. Peroxisomes are small, single - membrane bound organelles involved in metabolic reactions. The nucleus is a large, membrane - bound organelle that contains the cell's genetic material. The smooth endoplasmic reticulum is a network of membranes involved in lipid synthesis and detoxification.

Answer:

Golgi apparatus