1. Chapter 2: Nature of Life Jeopardy

2. Characteristics of Living Chemistry of Living Things
Chapter 2 Jeopardy Review
Characteristics of Living
Complex
Chemical Activities
Origin of Life
Chemistry of Living Things
Misc.
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3. The idea that life could spring from nonliving matter is known as
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4. Spontaneous generation
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5. The maximum length of time that an organism can be expected to live is called its
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6. Life Span
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7. A signal that causes an organism to react is known as a
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8. Stimulus
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9. Budding, the type of reproduction from only one parent is from this type of reproduction.
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10. Asexual reproduction
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11. The first living things to evolve on Earth were probably what kind of cells
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12. Unicellular, consumers
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13. All the chemical activities in an organism are called what process?
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14. Metabolism
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15. The process of taking in food.
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16. Ingestion
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17. The process of getting rid of waste material.
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18. Excretion
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19. The process by which living things take in oxygen and use it to produce energy.
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20. Respiration
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21. The process by which food is broken down into simpler substances.
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22. Digestion
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23. Planet Earth is 4.6 ______________ years old.
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24. billion
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25. One theory states that the first cells to have formed on early Earth did so in what.
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26. 1- clay beds Or 2-oceans of chemicals necessary for life: a soup of chemicals
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27. About 65 percent of the human body is made up of what compound?
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29. Of the atmospheric gases today, which one probably did not make up Earth’s early atmosphere?
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30. Oxygen
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31. The struggle among living things to get the proper amount of food, water, and energy is known as
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32. Competition
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33. Compounds that contain the element carbon are called
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34. Organic compounds
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35. Inside the body, carbohydrates, the main source of energy from food, are broken down into these
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36. Glucose
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37. Proteins are made up of smaller building blocks called
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38. Amino acids
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39. A special type of protein that regulates chemical activities in the body is a(an)
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40. Enzyme
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41. In living things, most chemical reactions must take place in the presence of this compound
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42. Water
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43. Animals whose body temperature changes somewhat with changes in the temperature of the environment.
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44. Cold-blooded
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45. What gas is used by green plants to make food?
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46. Carbon dioxide or CO₂
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47. When two or more atoms chemically join, they form a(an)
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48. Compound
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49. A decrease in air temperature causes a decrease in a coldblooded animal's
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50. Body temperature
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51. Pure substances that cannot be separated into simpler substances by ordinary chemical processes are called
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52. Elements
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