Basics of Plant Biology: Help and Review Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Earth's atmosphere is made up of several components including carbon, oxygen, and nitrogen. About how much of the atmosphere is nitrogen?

Question 2 2. What term describes the process of converting atmospheric nitrogen to ammonia?

Question 3 3. The release of water in plants, causing the change in water potential allowing for the movement of water in the xylem, is best known as:

Question 4 4. Which of the following best describes the process of trees releasing water vapor?

Question 5 5. Xylem is composed of dead cells lined end to end. What is responsible for making these cells strong and durable even though they are no longer living?

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Question 6 6. Which of the following correctly matches the root region with the process that occurs there?

Question 7 7. When viewing a tree trunk, one observes that the rings vary in size. What causes some of these rings to be larger than others?

Question 8 8. Why does secondary growth occur in dicots and not in monocots?

Question 9 9. What two factors are mainly responsible for the movement of water from the roots up through the leaves?

Question 10 10. Some flowers, such as daffodils and pansies, are often yellow in color. Which of the following is the most likely method of pollination?

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Question 11 11. Which of the following is true of vascular tissues in plants?

Question 12 12. Why is the stigma generally sticky?

Question 13 13. Nitrogen is part of what vital substance in plant cells?

Question 14 14. What layer of the leaf is responsible for photosynthesis?

Question 15 15. What process happens at the apical meristem to allow for plant stem growth that does not occur at other locations in the shoot system?

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Question 16 16. Which of the following structures is not found in the gynoecium whorl?

Question 17 17. Organisms that fix atmospheric nitrogen into a usable form for plants and humans are:

Question 18 18. What is the purpose of root hairs?

Question 19 19. The meristem produces tissues that later develop into more specialized mature structures. Which of the following correctly pairs the early tissue with the mature tissue?

Question 20 20. Which whorl of a flower contains anthers and filaments?

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Question 21 21. Which of the following is NOT an example of a sugar sink?

Question 22 22. Leaves attach to stems at _____ and the spaces between leaves are called _____.

Question 23 23. Which of the following correctly pairs the cell produced in the meristem region with its final mature structure?

Question 24 24. The age of a tree can be determined by counting the number of rings. What structure are you looking at when you count these rings?

Question 25 25. The pressure flow hypothesis can be used to explain:

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Question 26 26. Which structure associated with phloem carries out metabolic activities for the phloem?

Question 27 27. Which of the following is the best analogy for the function of the root tip?

Question 28 28. The type of growth seen at the apical meristem is best known as _____ growth and will result in an increase in the _____ of the stem.

Question 29 29. What structure is labeled in this diagram?

Question 30 30. Which of the following terms best describes when a grain of pollen from an anther is placed on a stigma?

Basics of Plant Biology: Help and Review Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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