Question Detail
Question
Which organelle in a cell can be described as "stacks" of flattened membranes with cis and trans polarity? A. Mitochondria B. Golgi apparatus C. Ribosomes D. Peroxisomes
Correct Answer
Option B is the correct answer.
Detailed Explanation
The Golgi apparatus is characterized by stacks of flattened, membrane-bound sacs called cisternae. It has distinct polarity: the cis face (receiving side) and the trans face (shipping side), reflecting its role in modifying and sorting molecules as they travel through the stack.
Hint
This organelle is the cell's 'post office' with distinct entry and exit sides.