Question

question which of the following are membranous organelles? select all that apply □ nucleus and endoplasmic reticulum □ mitochondria and lysosomes □ golgi apparatus and peroxisomes □ microvilli and centrioles

Explanation:

1. Nucleus and endoplasmic reticulum: The nucleus is surrounded by a nuclear envelope (a double membrane), and the endoplasmic reticulum (ER) has a membranous structure. So this option is correct.
2. Mitochondria and lysosomes: Mitochondria have a double - membrane structure, and lysosomes are single - membrane - bound organelles. So this option is correct.
3. Golgi apparatus and peroxisomes: The Golgi apparatus is a stack of membranous sacs, and peroxisomes are single - membrane - bound organelles. So this option is correct.
4. Microvilli and centrioles: Microvilli are extensions of the plasma membrane (not organelles with their own membranes in the traditional sense of membranous organelles), and centrioles are non - membranous organelles (they are made of microtubules). So this option is incorrect.

Answer:

A. Nucleus and endoplasmic reticulum, B. Mitochondria and lysosomes, C. Golgi apparatus and peroxisomes