Across
- 4. A network of long protein strands in the cytosol that helps maintain the shape and size of a eukaryotic cell.
- 5. A fluid-filled organelle that stores enzymes or metabolic wastes in a plant cell.
- 6. An organelle containing digestive enzymes, existing primarily in animal cells.
- 7. One of the four bases of DNA; it pairs only with cytosine.
- 9. A system of membranes in eukaryotic cells that modifies proteins for export by the cell.
- 11. Organelles that are the site of aerobic respiration in eukaryotic cells.
- 12. Membrane bounded vesicle derived from the Golgi apparatus and containing material to be released from the cell.
- 14. A microscopic, dark-staining body visible in the cell's nucleus at the time of nuclear division, which carries the genes arranged in linear order.
- 16. A structure that appears during mitosis in animal cells.
- 18. A genetic protein-like nucleic acid on plant and animal genes and chromosomes that controls inheritance. Each DNA molecule consists of two strands in the shape of a double helix.
- 20. A cell organelle containing enzymes that catalyze the production and breakdown of hydrogen peroxide.
- 21. Minute objects within plant cells, which contain the green pigment chlorophyll.
- 23. The central portion of the cell protoplast surrounded by a very thin membrane. It is crucial in metabolism, growth, reproduction, and the transmission of the determiners of hereditary characteristics.
- 24. One of the four bases in DNA. It pairs only with thymine
- 25. The portion of the endoplasmic reticulum that actively transports K+ ions into and Na+ ions out of cells.
- 26. The inside parts of a cell, such as the Golgi apparatus, nucleus, ribosomes, microtubules, and storage particles.
Down
- 1. An organelle that functions in the synthesis of proteins.
- 2. The simplest unit of inheritance. Physically, each gene is a nucleic acid with a unique structure. It influences certain traits.
- 3. The portion of the endoplasmic reticulum containing attached ribosomes.
- 4. The semipermeable membrane enclosing the cytoplasm of a cell
- 8. A small, rounded body within the cell nucleus, functioning in ribosome manufacture.
- 10. The living substance within a plant or animal cell, excluding the nucleus.
- 13. A dark body containing a centriole in animal cells but not plant cells; spindle fibers radiate from the centrosome in preparation for mitosis.
- 15. One of the four bases of DNA; it pairs only with adenine.
- 17. One of the four bases of DNA; it pairs only with guanine.
- 19. The transmission of genetic factors from parent to offspring.
- 21. The ultimate functional unit of an organic structure, plant, or animal. It consists of a microscopic mass of protoplasm, which includes a nucleus surrounded by a membrane.
- 22. The membranous covering of a cell secreted by the cytoplasm in growing plants.