Living Things

1. a group of biomolecules consisting of carbon, hydrogen, and oxygen, that gives us energy.
6. a layer of lipids and proteins that surrounds a cell
8. an orgnism that has big, complex cells, each of which has a nucleus
9. a hot, concentrated solution of organic molecules
12. a group of organic molecules, which includes fats
13. a jelly-like liquid in the cell membrane containing organelles
15. a chemical element found in all living things
16. the process of obtaining nutrients by living things, providing them with energy to grow and reproduce
18. a cellular parasite that spreads and multiplies very quickly and causes diseases
19. a group of biomolecules that build, maintain, and replace tissues in the body
20. a type of living organism, such as a plant, that makes its own food

2. groups of the same specialized cells that work together to form organs
3. a special structure in a cell, which performs a specific function
4. the ability to perceive external or internal signals and to respond to stimuli
5. an organelle containing chlorophyll and other pigments uesd in photosynthesis
7. the process of producing genetically similar organisms
10. simple proteins in the brain that cause neurological diseases
11. 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
17. a living organism that cannot make its own food supply