Living Things

2. a cellular parasite that spreads and multiplies very quickly and causes diseases
4. an organelle containing chlorophyll and other pigments uesd in photosynthesis
5. a group of biomolecules that build, maintain, and replace tissues in the body
9. a hot, concentrated solution of organic molecules
12. a large compartment in a eukaryotic cell that has a double membrane layer
14. a simple, single-celled organism that has a plasma membrane but no nucleus, for example, bacteria
15. a group of organic molecules, which includes fats
16. the process of obtaining nutrients by living things, providing them with energy to grow and reproduce
18. a type of living organism, such as a plant, that makes its own food
19. an orgnism that has big, complex cells, each of which has a nucleus
20. simple proteins in the brain that cause neurological diseases

1. a special structure in a cell, which performs a specific function
3. a layer of lipids and proteins that surrounds a cell
6. the process of producing genetically similar organisms
7. groups of the same specialized cells that work together to form organs
8. a group of biomolecules consisting of carbon, hydrogen, and oxygen, that gives us energy.
10. a living organism that cannot make its own food supply
11. the ability to perceive external or internal signals and to respond to stimuli
13. a jelly-like liquid in the cell membrane containing organelles
17. a chemical element found in all living things