1. First Semester Review for Biology

2. The biomoelcule that has a 1:2:1 ratio of C:H:O

3. carbohydrates

4. What is the acronym for the scientific method?

5. D. Define problem R. research H. Hypothesis E. Experimental setup R. Results C. conclusion

6. Closely packed molecules in a container is known as a ___________. (It can take the shape of the container)

7. solid

8. The type of bond that transfers electrons to fulfill their valences.

9. ionic

10. The particles that you will find orbiting the nucleus of an atom in energy levels.

11. electrons

12. What is the inorganic molecule that is polar and is known as the best solvent in the world?

13. water

14. What is the name of the protein that helps speed up reactions?

15. Enzymes catalysts

16. Anything that contains carbon is also known as__________.

17. organic

18. Another term for maintaining the body’s balance is called_____________.

19. homeostasis

20. Any substance that contains all like atoms is also known as a(n) _____________.

21. element

22. The particle that is also the atomic number of an atom is _______________.

23. The number of protons. It could also be the electrons.

24. A substance with a pH of 1-6.9 is a(n)_______

25. acid

26. The study of life is known as ___________.

27. biology

28. The type of bond that shares electrons to fulfill its valences is called____________.

29. covalent

30. The biomolecule that contains nitrogen is ___________________

31. protein

32. The smallest part of a living thing is the _________

33. cell

34. The boss of the cell is the ___________

35. nucleus

36. A passageway that carries proteins from the nucleus to other parts is the _________

37. E.R. (Endoplasmic Reticulum)

38. The cell organelle that makes ribosomes is the _____________

39. Nucleolus (It is inside of the nucleus)

40. What do all living things need?

41. Respiration Digestion Made up of at least one cell Reproduce Use energy Get rid of waste

42. What are instructions for traits that are passed from one generation to another called?

43. genes

44. What is a hypothesis?

45. An educated guess. It is the part of the experiment that is testable.

46. What is a theory?

47. A very broad explanation

48. What makes carbon so special?

49. It has a valence of four electrons. It can either gain or lose four electrons to fulfill its valence.

50. What are the monomers of carbohydrates?

51. Sugars which are also known as saccharides

52. What is the main difference between a prokaryote and a eukaryote?

53. The prokaryote does not have a nucleus

54. What part of the eye detects color?

55. cones Cones

56. What is astigmatism?

57. A misshapen eye that causes a person to not see clearly.

58. What was the cause of eye problems in the people in Nepal?

59. Because they live in such high elevation the sunlight’s UV is much more damaging to eye tissue. Also, a poor diet can cause it.

60. Which part of the ear changes sound waves (vibration) to electrical impulses?

61. cochlea

62. Name the three main parts of the brain.

63. Cerebellum Cerebrum Brain stem

64. Which part of the neuron sends impulses to the next cell?

65. The axon

66. Which cells of the body contain more mitochondria than any other?

67. Muscle Nerve

68. What are the differences between mitosis and meiosis?

69. Mitosis-asexual reproduction makes two identical daughter cells Meiosis-sexual reproduction makes four haploid daughter cells

70. How many chromosomes does a skin cell have in a human?

71. 46 or 23 pair

72. If you drank salt water for two days what would happen to the cells of your body?

73. The cells would dehydrate because the solution around them are hypertonic

74. Is it possible to drink too much water in too short of time. Explain.

75. Too much water makes a hypotonic environment for your cells making them unable to work because they are too swollen with water

76. What is needed for photosynthesis to occur?

77. Sunlight Water Carbon dioxide Chlorophyll

78. What is needed for cellular respiration to occur?

79. Sugar Oxygen

80. What is the epiphysis and diaphysis?

81. Diaphysis=shaft of long bone=compact bone Epiphysis=end of long bone=spongy

82. Could we hear without air? Explain.

83. No. Sound waves need the particles in air to travel.