1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Clown Vomit Delicious Sandwiches From Household Cleaning Products Some of my best Friends are Platapuses Cosas que Usted Come Con carne Podrida The Great Thing About The Ottoman Empire… Always a place to Put Your Feet!

2. What type of chemical is DNA?

3. A nucleic acid

4. Which of the following is a stimulus? -gravity -sunlight -sound

5. All of those things!

6. What is homeostasis

7. The maintenance of an organism’s stable internal conditions.

8. If you subtract the water from a 100 kilogram organism, how much mass would remain?

9. Approximately 30 Kilograms

10. What chemical is necessary for almost all metabolic processes?

11. Water!

12. What are three types of lipids and what does each do?

13. -Fats…energy -oils…energy -phospholipids…structural (cell membrane)

14. Are proteins a source of energy?

15. No! They are building blocks for cell repair and enzymes. There are some other types too, but they are not a direct energy source.

16. What do enzymes do?

17. They speed up chemical reactions.

18. What are six characteristics that all living things share?

19. 1. Made of cells 2. Grow and develop 3. Reproduce 4. Respond to stimulus 5. Composed of certain chemicals 6. Use energy

20. What is asexual reproduction?

21. Reproduction involving one parent that produces offspring that identical to itself.

22. What is sexual reproduction?

23. Reproduction involving two parents that produces offspring that is a product of a mix of genetic information from both.

24. DNA can be made up of thousands of_____

25. Nucleotides

26. A protein in our blood that makes it look red, contains iron (Fe), and carries oxygen. called_________.

27. Hemoglobin

28. What is photosynthesis?

29. The process by which plants convert the energy from sunlight into food.

30. Organisms that obtain their energy by eating other organisms are called________

31. Consumers or Heterotrophs

32. Organisms that meet their energy needs by making their own food are called____________

33. Producers or Autotrophs

34. Cell membranes are composed of what type of compound?

35. Phospholipids

36. Which of the following of environments are more difficult to maintain homeostasis within and why? -Open ocean -Desert

37. Desert- a far less stable environment with drastic changes in temperature and very little water. It is easier to maintain stable internal conditions if the environment is stable. The ocean is pretty stable compared to the craziness of the desert.

38. What are two types of carbohydrates?

39. Simple and Complex

40. What is the problem with stating that all living things need air?

41. While many living things do need air (such as ourselves), there are many organisms that do not. There are gases in the mixture that we call air that are important (N 2, O 2, & CO 2 for example) but not all organisms use them directly from air and some archaebacteria use gases that aren’t abundant in air at all.

42. What are proteins made up of?

43. Amino acids

44. What are four basic needs of living things?

45. Living Space 2. Water 3. A source of Energy (Food) 4. Maintain homeostasis

46. What are five types of chemicals that are essential to most living things?

47. 1.Carbohydrates 2.Proteins 3.Lipids (fats, oils, phospholipids) 4.Nucleic Acids (DNA & RNA) 5.ATP (Adenosine Triphosphate: chemical energy for cellular metabolism)

48. Are viruses living things? Explain the reasoning behind your answer.

49. No! A virus is not made of cells.

50. What makes the cell membrane so unique?

51. It is a phospholipid bilayer (two layers of phospholipid molecules). The hydrophilic heads face outward, and the hydrophobic tails face inward. This makes the membrane waterproof.