Answer: Cytoplasm.
- A Nucleoplasm
- B Stroma
- C Matrix
- D Cytoplasm
Correct answer: D. Cytoplasm
Explanation: The cytoplasm is the semi-fluid ground substance that fills the cell and in which the organelles are suspended.
Animal cell structure with major organelles labeled. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
Cell theory, prokaryotic vs eukaryotic cells, organelles and their functions. Foundation of all biology.