Cell Labeling Quiz

1. A diagram shows a stack of flattened membrane sacs receiving products from the endoplasmic reticulum, modifying them, and sorting them for delivery. Which label fits?

2. A small membrane-bound sac buds from the Golgi apparatus, moves to the plasma membrane, and releases its contents outside the cell. What should it be labeled?

3. A drug disrupts protein fibers that maintain cell shape, position organelles, and provide tracks for intracellular movement. Which labeled system was affected?

4. In a leaf cell, an oval organelle contains chlorophyll and stacks of internal membranes called grana. What is it?

5. A cell that produces many lipids has an extensive tubular membrane network without attached ribosomes. What should that network be labeled?

6. An animal-cell compartment maintains an acidic interior and contains enzymes that break down worn cellular material. Which label is most appropriate?

7. A label line ends at the selectively permeable phospholipid bilayer surrounding the cell. Which term belongs there?

8. A newly made protein destined for secretion enters a network of membranes covered with ribosomes. Which structure is this?

9. Inside the nucleus, a dense region produces ribosomal RNA and begins assembling ribosomal subunits. What is this region called?

10. A bacterial-cell diagram points to the non-membrane-bound region where the main chromosome is concentrated. Which label belongs there?

11. A plant-cell diagram shows a rigid cellulose-containing layer outside the plasma membrane. Which label identifies this layer?

12. Which structure should be labeled when a mature plant cell has one large, fluid-filled compartment that helps maintain turgor pressure?

13. A bracket marks the cell region inside the plasma membrane but outside the nucleus, including cytosol and suspended organelles. Which label fits the bracket?

14. A researcher traces aerobic respiration to an organelle with a double membrane and a highly folded inner membrane. Which label belongs on it?

15. A label points to the large membrane-bound structure that contains chromatin and usually encloses a nucleolus. Which structure is it?

16. On a cell diagram, tiny dots appear both freely in the cytoplasm and attached to membrane sheets. What should those dots be labeled?