Cells and Body Systems

2. the vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem.
4. group of tissues that work together to perform a specific function
7. the semipermeable membrane surrounding the cytoplasm of a cell.
11. an organelle found in large numbers in most cells
16. a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
17. structures in cells that perform a certain function
19. help to stop bleeding
20. a plastid that contains chlorophyll and in which photosynthesis takes place.
22. Anything that causes a response in an organism
23. diffusion of water through a selectively permeable membrane

1. a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.
3. Connects tissue to keep the wall from collapsing
4. An individual animal, plant, or single-celled life form
5. A nutrient is a component in foods that an organism uses to survive and grow
6. Specilazed for carrying oxygen to all the cells of the body
8. any of a group of small typically parasitic bacteria that lack cell walls and sometimes cause diseases.
9. Generated to fight infection
10. The arrangement of and relations between the parts or elements of something complex.
12. the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
13. the material or protoplasm within a living cell, excluding the nucleus.
14. a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans
15. any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products
18. the action or process of making a copy of something
21. The smallest structural and functional unit of an organism