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Name Date Chapter Review Class Plant Processes Part A. Vocabulary Review Directions: Match the description in the first column with the item in the second column by writing the correct letter in the space provided. 1. plants requiring short nights to flower a. auxin 2. plants requiring long nights to flower b. day-neutral 3. using light energy to make food c. long-day 4. hormone that causes phototropism d. photoperiodism 5. flowering response of a plant to length of light and dark e. photosynthesis 6. releasing energy from food f. respiration 7. plants that flower over a wide range of dark periods g. short-day 8. response of a plant to a stimulus h. stomata 9. openings on a leaf that let in carbon dioxide and let out oxygen i. tropism bio—life photo—light tropo—turning Assessment Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. Directions: Study the meanings of the word parts listed below. In the space provided write the correct term that combines two of the word parts. 10. __________________________ growth response of a plant to light Directions: Complete the following equations. 11. photosynthesis: 6CO2 + 6 ______ + light energy → C6H12O6 + 6 ______ 12. respiration: C6H12O6 + 6 ______ → 6CO2 + 6 ______ + energy 13. Describe the difference between the two equations. Plant Processes 33 Name Date Class Chapter Review (continued) Part B. Concept Review 1. Give two reasons photosynthesis is important and, in words, write its equation. a. b. Equation: 2. Give two reasons respiration is important and, in words, write its equation. a. b. Equation: Assessment 3. Tropism: 5. Tropism: 4. Stimulus: 6. Stimulus: Directions: Answer the following question on the lines provided. 7. Describe the process of gas exchange in plants. 34 Plant Processes Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. Directions: Identify the following tropisms and name the stimuli. Name Date Chapter Test Class Plant Processes I. Testing Concepts Directions: Match the description in the first column with the item in the second column by writing the correct letter in the space provided. Some items in the second column may not be used. 1. plant processes using light energy to produce food a. auxins 2. anything in environment affecting the behavior of an organism b. day-neutral plants 3. response of a plant to a stimulus d. photoperiodism 4. flowering response of a plant to changes in length of light and dark in a day e. photosynthesis 5. plants requiring long nights to flower c. long-day plants f. respiration g. short-day plants 6. plants that flower over a wide range of night lengths h. stimulus 7. plant hormone that moves to shaded side of stem i. gibberellins 8. releasing energy from food j. tropism 9. Most carbon dioxide enters plants through stomata on the ______. a. lower surface of leaves c. tips of the stems b. root tips d. upper surface of leaves Assessment Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. Directions: For each of the following, write the letter of the term or phrase that best completes the sentence. 10. Light, ______, and carbon dioxide all affect the opening and closing of stomata. a. gravity b. insects c. minerals d. water 11. The plant hormone that causes stomata to close and that helps plants respond to water loss is ______. a. cytokinin b. auxin c. gibberellin d. abscisic acid 12. The autumn colors of tree leaves are due to ______ in the leaves. a. auxins b. carbon dioxide c. pigments d. chlorophyll 13. Light energy for the plant to use in making its food is trapped by ______. a. carbon dioxide b. pigments c. chlorophyll d. water 14. The type of growth response having to do with light is called ______. a. gravitropism b. photoperiodism c. phototropism d. photosynthesis 15. ______ causes fruit to ripen. a. Auxin b. Ethylene gas c. Chlorophyll d. Gravity 16. Plants that require short nights to flower are called ______ plants. a. long-day b. short-day c. day-neutral d. periodic Plant Processes 35 Name Date Class Chapter Test (continued) II. Understanding Concepts Skill: Sequencing Directions: Place the following in the proper order to show the process of photosynthesis. 6O2 6H2O 6CO2 C6H12O6 light energy 1. ____________ + ____________ + ____________ → 2. ____________ + ____________ Skill: Comparing and Contrasting Directions: Names and examples of two types of tropisms are listed in the table below. Complete the table by writing the stimulus of each type of tropism. Type of tropism Stimulus Example Gravitropism 3. root growing downward Phototropism 4. plant growing toward Sun Directions: Complete the table describing photoperiods of plants. First identify the type of photoperiodism described. In the last column, provide two examples of each type of photoperiodism. Plant examples Assessment Plants that require long nights to flower 5. 6. Plants that require short nights to flower 7. 8. Plants that are not sensitive 9. to length of night or day 36 Plant Processes 10. Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. Type of photoperiodism Description Name Date Class Chapter Test (continued) Directions: Complete the paragraph by filling in the blanks. Gas exchange is one way living cells obtain raw materials and get rid of waste products. Each stoma on a plant is surrounded by two 11. ____________________ cells that control the size of the opening. When these cells absorb water, they swell and the stoma opens, letting 12. ____________________ in and 13. ____________________ out. In respiration, organisms break down food chemically to release 14. ____________________. Respiration that uses oxygen to break down food chemically is called 15. ____________________. This occurs in the 16. ____________________ in cells. Oxygen is used to break down food to produce 17. ____________________, water, and energy. This process is the direct opposite of the reaction that occurs in 18. ____________________. III. Applying Concepts Directions: State two reasons photosynthesis is important. 2. Assessment Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. 1. Directions: Classify each of the following as describing photosynthesis, or respiration. 3. Energy released: 4. Energy stored: 5. Light energy, 6H2O, and 6CO2 at start: 6. C6H12O6 and 6O2 at start: 7. C6H12O6 and 6O2 at end: 8. 6CO2, 6H2O, and energy at end: 9. Takes place in all cells: 10. Takes place in cells with chlorophyll: Plant Processes 37 Name Date Class Chapter Test (continued) Directions: In the table below, classify the type of tropism described, identify the tropism as positive or negative, and identify the stimulus to which the plant is responding. Tropism Positive or negative Stimulus 11. A plant stem turns toward the Sun. 12. A plant’s roots grow into the soil. 13. A stem breaks through the soil. IV. Writing Skills Directions: Answer the following questions on the lines provided. 2. What are the two types of reactions that can take place during photosynthesis? Explain. Assessment 38 Plant Processes Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. 1. What is the relationship between plant hormones and tropisms? Give an example.