test 12 review questions
DESCRIPTION
TRANSCRIPT
![Page 1: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/1.jpg)
6th Grade Science
Chapter 12 Plant
Processes
Chapter Review
Questions
Keukenhof Gardens - Holland
![Page 2: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/2.jpg)
Word Bank A
• Gravitropism
• Photosynthesis
• Photoperiodism
• Phototropism
• Short-day
• Day-neutral
• Long-day
Chapter 12 Review QuestionsWord Banks
Word Bank B
• Stimulus
• Hormone
• Tropism
• Phototropism
• Thigmotropism
• Respiration
• Palisade layer
Word Bank C
• Auxin
• Ethylene
• Cytokinin
• Abscisic acid
• Chlorophyll
• Gibberellin
![Page 3: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/3.jpg)
1. A plants response to gravity is called ______.
a. phototropism c. photosynthesis
b. gravitropism d. photoperiodism
Answer:
gravitropism
Chapter 12Review Questions
![Page 4: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/4.jpg)
2. The process of food-making in plants is _____.a. chlorophyll c. stomatab. photosynthesis d. carotenoids
Answer:
photosynthesis
Chapter 12Review Questions
![Page 5: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/5.jpg)
3. A flowering response of a plant to length of light and dark is called ______.a. phototropism c. photosynthesisb. gravitropism d. photoperiodism
Answer:
photoperiodism
Chapter 12Review Questions
![Page 6: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/6.jpg)
4. A plants growth response to light is called ______.
a. phototropism c. photosynthesis
b. gravitropism d. photoperiodism
Answer:
phototropism
Chapter 12Review Questions
![Page 7: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/7.jpg)
5. _______ plants require long nights to flower.a. long-day c. respirationb. short-day d. photosynthesis
Answer:
Short-day
Chapter 12Review Questions
![Page 8: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/8.jpg)
6. _______ plants require short days to flower.a. long-day c. respirationb. short-day d. photosynthesis
Answer:
short-day
Chapter 12Review Questions
![Page 9: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/9.jpg)
7. _______ is the process of releasing energy from food.
a. long-day c. respiration
b. short-day d. photosynthesis
Answer:
Respiration
Chapter 12Review Questions
![Page 10: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/10.jpg)
8. _______ is the process of using light energy to make food.a. long-day c. respirationb. short-day d. photosynthesis
Answer:
photosynthesis
Chapter 12Review Questions
![Page 11: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/11.jpg)
9. _______ plants flower over a wide range of dark periods.a. long-day c. day-neutralb. short-day d. photosynthesis
Answer:
Day-neutral
Chapter 12Review Questions
![Page 12: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/12.jpg)
10. _____ is anything in the environment that affects the behavior of an organism.a. stomata c. hormoneb. tropism d. stimulus
Answer:
stimulus
Chapter 12Review Questions
![Page 13: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/13.jpg)
11. _____ is an internal stimulus of a plant.a. stomata c. hormoneb. tropism d. stimulus
Answer:
hormone
Chapter 12Review Questions
![Page 14: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/14.jpg)
12. _____ is an external stimulus of a plant.a. stomata c. hormoneb. tropism d. stimulus
Answer:
tropism
Chapter 12Review Questions
![Page 15: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/15.jpg)
13. _____ is a plant’s response to gravity.
a. phototropism c. thigmotropism
b. gravitropism d. stimulus
Answer:
gravitropism
Chapter 12Review Questions
![Page 16: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/16.jpg)
14. _____ is a plant’s response to light.
a. phototropism c. thigmotropism
b. gravitropism d. stimulus
Answer:
phototropism
Chapter 12Review Questions
![Page 17: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/17.jpg)
15. _____ is a plant’s response to touch.
a. phototropism c. thigmotropism
b. gravitropism d. stimulus
Answer:
thigmotropism
Chapter 12Review Questions
![Page 18: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/18.jpg)
16. _____ is the response of roots growing downward.
a. negative phototropism c. negative gravitropism
b. positive phototropism d. positive gravitropism
Answer:
Positive gravitropism
Chapter 12Review Questions
![Page 19: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/19.jpg)
17. _____ is the response of stems growing upward.a. negative phototropism c. negative gravitropismb. positive phototropism d. positive gravitropism
Answer:
Negative gravitropism
Chapter 12Review Questions
![Page 20: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/20.jpg)
18. _____ is the response of a stem growing toward the light.a. negative phototropism c. negative gravitropismb. positive phototropism d. positive gravitropism
Answer:
Positive phototropism
Chapter 12Review Questions
![Page 21: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/21.jpg)
Answer:
Longer on the shaded side of the stem
19. Auxins cause cells to grow ______.a. Longer on the sunny side of the stemb. Longer on the shaded side of the stemc. Shorter on the sunny side of the stemd. Shorter on the shaded side of the stem
Chapter 12Review Questions
![Page 22: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/22.jpg)
20. Ethylene gas does NOT ______.
a. Ripen fruit c. cause leaves to fall off
b. Lengthen stems d. cause leaves to change color
Answer:
Lengthen stems
Chapter 12Review Questions
![Page 23: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/23.jpg)
21. _____ is a plant hormone that causes a plant to show positive phototropism.
a. Auxin c. ethylene
b. cytokinin d. Abscisic acid
Answer:
Auxin
Chapter 12Review Questions
![Page 24: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/24.jpg)
22. _____ is a plant hormone that causes rapid growth and helps stored vegetables stay fresh.
a. Auxin c. ethylene
b. cytokinin d. Abscisic acid
Answer:
ethylene
Chapter 12Review Questions
![Page 25: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/25.jpg)
23. _____ is a plant hormone that prevents seeds from sprouting to soon.
a. Auxin c. ethylene
b. cytokinin d. Abscisic acid
Answer:
Abscisic acid
Chapter 12Review Questions
![Page 26: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/26.jpg)
24. _____ is a green pigment in plants.
a. Auxin c. chlorophyll
b. cytokinin d. Abscisic acid
Answer:
chlorophyll
Chapter 12Review Questions
![Page 27: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/27.jpg)
25. Most carbon dioxide enters the plants through stomata on the ______.
a. Lower surface of leaves c. tips of the stems
b. Root tips d. upper surface of leaves
Answer:
Lower surface of leaves
Chapter 12Review Questions
![Page 28: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/28.jpg)
26. Light, ____, and carbon dioxide all affect the opening and closing of the stomata.
a. gravity c. minerals
b. insects d. water
Answer:
water
Chapter 12Review Questions
![Page 29: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/29.jpg)
27. The plant hormone that causes stomata to close and that helps plants respond to water loss is ___.
a. cytokinin c. gibberellin
b. auxin d. abscisic
Answer:
auxin
Chapter 12Review Questions
![Page 30: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/30.jpg)
28. The plant hormone that stimulates plant stem growth and seeds to germinate is ______.a. cytokinin c. gibberellinb. auxin d. abscisic
Answer:
gibberelin
Chapter 12Review Questions
![Page 31: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/31.jpg)
29. The green colors of tree leaves are due to _____ in the leaves.a. auxins c. pigmentsb. carbon dioxide d. chlorophyll
Answer:
chlorophyll
Chapter 12Review Questions
![Page 32: Test 12 review questions](https://reader033.vdocuments.us/reader033/viewer/2022061216/54b2c56e4a795979778b4587/html5/thumbnails/32.jpg)
30. Most of the plants food is made in the _______ layer.a. palisade layer c. lower epidermisb. spongy layer d. upper epidermis
Answer:
Palisade layer
Chapter 12Review Questions