Across
- 5. is a flattened stack of membranes that modifies, sorts, and packages proteins into sacks called vesicles
- 6. are defined as cells without a nucleus or other membrane bound organelles
- 12. it is in the center of the nucleus
- 15. also called ER, is a membrane system of folded sacs and interconnected channels that serve as the site for the protein and lipids synthesis
- 18. is the supporting network of long, thin protein fibers that form a framework for cells and provide an anchor for organelles inside the cell
- 19. the environment inside the plasma membrane is a semifluid material
- 21. a plasma membrane with components constantly in motion, sliding past one another within the lipid bilayer
- 22. are short numerous projection like that look like hairs
- 23. are longer and less numerous than cilia
Down
- 1. mean the membrane allows some substances to pass through while keeping others out
- 2. are organelles made of microtubules that function during cell division
- 3. the organelle that help manufacture proteins
- 4. contains a nucleus and other organelles that are bound by membranes
- 7. is the basic structural and functional unit of all living organisms
- 8. that convert fuel particles into usable energy
- 9. move needed substances or waste material through the plasma membrane
- 10. bilayer in which two layers of phospholipids are arranged tail to tail
- 11. is a special boundary that helps control what enter and leaves the cell
- 13. is a distinct central organ that contains cells genetic material in the form of DNA
- 14. a thick rigid mesh of fibers that surrounds the outside of the plasma membrane, protecting the cell and giving support
- 16. specialized structures that carry out specific cell function
- 17. which are organelles that capture light energy and convert it to chemical energy through a process called photosynthesis
- 18. is one of the fundamental ideas of modern biology and includes the following three principles all living cells are composed of one or more cells second cells Are the basic unit structure and organization of all living things third cells arise only from previous existing cells, with cells passing copies of their genetic material in to their daughter cells
- 20. is a sac used to store food, enzymes, and other material needed by the cell
- 24. are vesicles that contain substances that digest excess or worn out organelles and food particles