Bio111 Lab Practical 1-6 REVIEW Key

Bio111 Lab Practical 1-6 REVIEW Key - Bio 111 Lab Practical...

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Bio 111 Lab Practical Review Labs 1-6
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1. Which of the following is an example of a hypothesis? a. Hydrogen gas will diffuse faster than chlorine gas. b. Will chlorine gas diffuse faster than hydrogen gas? c. Chlorine has a molecular weight of 35.45. d. Hydrogen gas diffused 22 mm in 5 minutes.
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2. Which of the following describes a control? a. Dialysis bag filled with 50% sugar soaking in 100% water. b.Dialysis bag filled with 1% starch soaking in 100% water. c. Dialysis bag filled with 100% water soaking in 100% water. d.Both a & b.
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3. Label the parts of the microscope. Ocular Objectives Course Focus Fine Focus Iris Diaphragm Stage
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4. How do you calculate total magnification? Ocular (10x) times Objective (either 4x, 10x or 43x)
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5. The maximum amount the scale can weigh is? 311 g
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6. The minimum amount the scale can weigh is? .01g (0 is not a weight)
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7. The density of a rock that has a volume of 33mL and weighs 11g is? 11g/33mL = .333g/mL
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8. There are _____ ml of liquid in this graduated cylinder. a. 7.2 ml b.6.3 ml c. 6.6 ml d.7.0 ml
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9. 1131 g = how many kg? 1.131kg
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10. 83m = how many mm? 83000
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11. 777 cL = how many DL? .777Dl
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12. At the top of this pipette is says “10 in 1/100”. What does this mean?
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