Cell Biology Terms and Definitions

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Across
  1. 3. Small granules that help make proteins in the cell.
  2. 5. Material Protein mesh around centrioles responsible for microtubule anchoring.
  3. 7. Membrane Controls movement of substances into and out of the cell by selective permeability.
  4. 9. Organelles that digest waste, food particles, and dead cells.
  5. 10. Proteins Fixed-shape proteins that form channels in the membrane.
  6. 13. Gel-like fluid that holds organelles and supports cellular functions.
  7. 15. Tubular structures at right angles that form spindle fibers.
  8. 17. Organelle where cellular respiration releases ATP energy.
  9. 18. ER Endoplasmic reticulum with ribosomes that synthesize proteins.
  10. 19. Fluid inside the nucleus with enzymes, proteins, and nucleic acids.
  11. 20. Folds in the inner mitochondrial membrane that increase surface area.
  12. 21. Network Tightly packed network of chromosomes in the nucleus.
  13. 22. Small vacuoles that transport materials within or out of the cell.
  14. 23. Bodies Organelle that packages and distributes proteins and lipids.
Down
  1. 1. Reticulum Network of folded membranes forming channels in the cell.
  2. 2. Pressure from cytoplasm that helps maintain cell shape.
  3. 4. Structures that organize microtubules during cell division.
  4. 6. Pores Openings in the nuclear membrane for substance exchange.
  5. 7. Threads in the nucleus that carry hereditary information.
  6. 8. Control center of the cell containing chromosomes and nucleolus.
  7. 11. Structure in the nucleus that makes RNA, proteins, and ribosomes.
  8. 12. Fluid inside mitochondria containing DNA and enzymes.
  9. 14. Bilayer Double-layered membrane structure with hydrophilic heads and hydrophobic tails.
  10. 15. Proteins Proteins that change shape to transport substances through the membrane.
  11. 16. ER Endoplasmic reticulum without ribosomes; synthesizes lipids and carbs.