51. XY Male X X Female 2. What are the sex chromosomes of a normal human male and female?
52. 3. List the steps of the scientific method 1. State the Problem 2. Form a Hypothesis 3. Test the Hypothesis 5. Form a Conclusion 4 . Record and Analyze Data (repeat) work Educated guess Answer Question Experiment charts, graphs, tables 6. Replicate
53.
54. 5. How is energy released from ATP? A P P ADP P A P P P ATP + + Energy To another molecule Phosphorylation
55. magnification Eyepiece X Objective lens = 6. How is the total magnification of a microscope calculated?
56.
57.
58. 9. Give examples of the following carbohydrates. Polysaccharides starch cellulose glycogen Monosaccharide glucose Disaccharides lactose found in milk sucrose table sugar
59.
60.
61.
62.
63.
64.
65. 12. How does the cell membrane maintain homeostasis? cell membrane is selectively permeable only certain materials pass in and out of the cell cell maintains homeostasis
66.
67.
68.
69.
70.
71.
72.
73. 20. How many chromosomes does a normal human body cell contain? 23 pairs 46
74. 21. Who developed the Theory of Evolution? Charles Darwin
75.
76.
77.
78. 25. What happens to the number of chromosomes during meiosis? division of the nucleus that reduces the number of chromosomes by half reduces the number of chromosomes by half 46 X 23
79.
80. 27. What happens to the number of chromosomes during mitosis? 46 (2N) 46 (2N) 46 (2N) It Remains The Same 2 identical Daughter cells are created
81.
82. 29. How many nitrogen bases code for one amino acid in a protein? 3 (Triplet) A C G each DNA triplet codes for an amino acid
83.
84. 31. What must organisms do in a changing environment if they are to survive? Move away Adapt
85. 32. What is the ultimate source of energy for most living things? SUN The
86.
87. 34. What happens to the amount of available energy in an energy pyramid as it moves from lower to higher trophic levels? shows the loss of energy from one trophic level to the next trophic level
88. 35. Describe how a test cross is used to determine the genotype of an individual whose phenotype is dominant. Test cross – an individual with unknown genotype is crossed with a homozygous recessive individual
89. 36. How are the offspring produced by asexual reproduction different from the offspring produced by sexual reproduction? Only needs one parent Binary fission Budding
90. 37. What is the relationship between genotype and phenotype? Genotype genetic makeup of an organism physical characteristics of an organism ( genes ) Phenotype External Internal