Which eukaryotic organelle is primarily responsible for the formation of filtrate within the cell?

• A. Golgi apparatus
• B. Vacuole
• C. Endoplasmic reticulum
• D. Nucleus

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the function of each organelle listed in the problem. The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for secretion or use within the cell. The vacuole is involved in storage, waste disposal, and maintaining turgor pressure in plant cells. The endoplasmic reticulum (ER) is involved in protein and lipid synthesis, and the nucleus houses genetic material and controls cellular activities.
2. Step 2: Define the term 'filtrate' in the context of cellular biology. Filtrate refers to a substance that has been filtered, often involving the separation of solids from liquids or the removal of specific components.
3. Step 3: Consider which organelle is most likely to be involved in the formation of filtrate. The vacuole, particularly in plant cells, plays a role in storing and isolating substances, including waste products, and can be involved in processes resembling filtration.
4. Step 4: Eliminate organelles that do not directly contribute to the formation of filtrate. The Golgi apparatus, ER, and nucleus are not primarily responsible for filtration processes within the cell.
5. Step 5: Conclude that the vacuole is the organelle primarily responsible for the formation of filtrate within the cell, as it is involved in storage and isolation processes that resemble filtration.