Cells and Organelles

Which cell structure is found in all cells, is external, controls what enters and exits the cell, and is crucial for maintaining homeostasis?

• Cell Wall

• Cell Membrane

• Cytoplasm

• Nucleus

This external cell structure is present in most prokaryotic cells and some eukaryotic cells, such as plant cells, but not animal cells. It provides structural support and additional protection. What is it?

• Cell Membrane

• Mitochondrion

• Cell Wall

• Cytoskeleton

Which structures are found in eukaryotic cells (specifically animal cells, not plant cells), originate from the centrosome (two per centrosome), and are involved in cell division by forming spindle fibers?

• Ribosomes

• Centrioles

• Chloroplasts

• Vacuoles

This organelle is found in some eukaryotic cells, specifically plant cells, but not animal cells. Its primary function is to produce sugar through the process of photosynthesis. What is this organelle?

• Mitochondrion

• Chloroplast

• Endoplasmic Reticulum

• Golgi Apparatus

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Which organelle is responsible for modifying, sorting, and packaging materials for delivery within the cell?

• Lysosome

• Mitochondrion

• Golgi Apparatus

• Nucleus

What organelle contains enzymes that break down substances, acting like a "wrecking ball" for cellular waste?

• Ribosome

• Mitochondrion

• Golgi Apparatus

• Lysosome

Which organelle is the primary site for cellular respiration and produces ATP in both plant and animal eukaryotic cells?

• Nucleus

• Mitochondrion

• Chloroplast

• Vacuole

What organelle houses the cell's DNA and controls the cell's activities?

• Ribosome

• Cytoplasm

• Nucleus

• Cell Membrane