Across
- 3. Organisms that exist that are composed of a single cell (bacteria, yeast, protozoa, and diatoms).
- 5. A protective double membrane surrounding the nucleus that controls the flow of materials in and out of the nucleus.
- 7. Plants, algae, fungi and some bacteria have an extra computer layer that is very rigid and tough, that helps protect the cell and give it shape.
- 8. Protein-making factories in a cell.
- 9. Cells found in plants (with a cell wall, chloroplasts, and a large, central vacuole for storage that takes up a lot of space).
- 11. The cell’s powerhouse, releasing energy in food by carrying out a reaction with oxygen.
- 12. All organisms are made of cell(s); cell is basic building block of life; every cell comes from another.
- 14. Temporary storage bubbles for the cell, storing food, water, or waste.
- 16. A small structure found inside the nucleus that makes ribosomes and transports them to the cytoplasm.
- 18. Organelle that contains digestive chemicals that break down food, cell waste, and foreign particles that enter the cell (i.e. viruses and bacteria). It digests and destroys dead cells and old cell parts and recycles material to make other cells.
- 19. In plant cells only, they are organelles that produce food. Chlorophyll is a green pigment that makes plants look green and also uses energy from the sun to change water and carbon dioxide into glucose, a simple sugar.
- 20. Very simple, single-celled bacteria that do not have a membrane-bound nucleus, mitochondria, or organelles.
- 21. The parts of a cell. They process and release energy, destroy and digest materials, and replicate genetic information.
Down
- 1. Moving things inside and outside of the cell membrane.
- 2. Cells found in animals.
- 4. The cell’s transport organelle, processing and moving materials throughout the cell.
- 6. In every cell, there is a layer on the outside of the cell that holds the cell together, and controls the flow of material in and out of the cell (a semi-permeable layer, allowing some stuff through and keeping other things out).
- 9. The movement of things in and out of the cell without the use of energy.
- 10. Much more complex types of cells (containing a membrane-bound nucleus, mitochondria, and organelles) found in protists, fungi, animals and plants.
- 11. Organism that is composed of many cells, and many different types of cells that perform different tasks throughout the organism.
- 13. The movement of molecules from an area of high to low concentration.
- 15. The basic structural and functional unit of all forms of life; they are able to replicate independently.
- 16. The cell’s “control center”, housing the cell’s chromosomes.
- 17. The cell’s packaging, sorting, and distributing organelle. They sort proteins from the Endoplasmic Reticulum and then distribute them to where they need to go.
- 19. Jelly-like substance in the cell containing all the organelles in the cell. It helps to maintain the structure of the cell.