Plants. Chapter Test A. Multiple Choice. 1 Pearson Education, Inc., or its affiliates. All rights reserved.

Transcription

1 Plants Chapter Test A Multiple Choice Write the letter of the correct answer on the line at the left. 1. The leaf s cuticle a. stores water. b. reduces evaporation. c. transports water in the leaf. d. absorbs water for the leaf. 2. What produces egg and sperm cells during the life cycle of a plant? a. gamete b. gametophyte c. sporophyte d. zygote 3. A grapevine coiling around a fence post is an example of a. positive gravitropism. b. positive thigmotropism. c. negative phototropism. d. all of the above. 4. What happens in the phloem? a. Water moves up from roots. b. Food moves down from leaves. c. Food moves up from roots. d. Water moves down to roots. 5. Germination will not happen unless a seed a. is dispersed far from the plant that produced it. b. absorbs water. c. uses its stored food. d. grows stamens and a pistil. 6. What part of a woody stem forms rings that indicate the tree s age? a. xylem b. phloem c. cambium d. inner bark 7. Why must ferns live in moist environments? a. to transport spores to new locations b. to transport water to all cells c. so that egg and sperm cells can join d. so that fiddleheads develop for food 1

2 8. The energy that powers photosynthesis comes from a. water. b. chemicals. c. oxygen. d. the sun. 9. Why might the world's food supply be threatened if pollinators become extinct? a. Because without pollinators, flowers will have only male parts. b. Because without pollinators, flowers will not have petals. c. Because without pollinators, pollen might not be transferred from the male reproductive parts of flowers to the female reproductive parts, and thus many food crops will not be fertilized. d. Because without pollinators, ovaries will not be able to protect seeds as they develop, and therefore the seeds of many food crops will die. 10. Which of the following is an example of an environment where a mushroom would grow best? a. A desert b. A glacier c. A hot attic d. A damp basement 11. Which type of plant would a gardener most likely plant in a shady area of a garden? a. Ferns b. Tulips c. Apple trees d. Orange trees 12. If a logger cut down all the trees in a small area of a forest, what might happen to the ferns growing there? a. The ferns would grow stronger because more rain would reach them. b. The ferns would grow weaker because less rain would reach them. c. The ferns would grow weaker because more sunlight would reach them. d. The ferns would grow stronger because more sunlight would reach them. 13. What determines the time of flowering in many plants? a. the amount of water a plant receives b. the amount of light a plant receives c. the amount of darkness a plant receives d. the amount of cold temperature exposure a plant receives 2

3 Completion Fill in the line to complete each statement. 14. Dormancy helps plants survive freezing temperatures and lack of _. 15. A(n) is a group of similar cells that perform a specific function in an organism. 16. Angiosperms that have only one seed leaf are called. 17. A plant loses water through the process of in which water evaporates through the plant s leaves. 18. Plant cell walls contain a rigid material called. True or False If the statement is true, write true. If it is false, change the underlined word or words to make the statement true. 19. A moss is a type of vascular plant. 20. Flowering plants that complete a life cycle within one growing season are called perennials. 21. With the exception of some green algae, all plants are eukaryotes that contain many cells. 22. In plants, sexual reproduction occurs when a sperm cell and an egg cell unite to form a zygote. 23. Nonvascular plants are low growing because of their thick cell walls. 3

4 Using Science Skills Directions: Use the diagram to answer each question. 24. Identify the structures labeled A in the diagram, and describe their function. 25. Identify the structure labeled B in the diagram, and describe its function. 26. Identify the structure labeled C in the diagram, and describe its function. 4

5 Essay Write an answer for each of the following questions on a separate sheet of paper. 27. If you came across a tall plant in a forest, would you think it was a vascular plant or a nonvascular plant? Explain why. 28. What characteristics do plants share? Using Science Skills Directions: Use the diagram to answer questions 29 and 30. 5

6 29. Identify the structure labeled A in the diagram, and tell what it contains. 30. Identify the structure labeled D in the diagram, and describe its function. Essay Write an answer for each of the following questions on a separate sheet of paper. 31. Explain how plants are important in our everyday lives. 32. If a plant has flowers with large, colorful petals, would you expect wind or animals to disperse its pollen? Explain your reasoning. 6