Answer Key Vocabulary Practice A. Choose the Right Word 1. guard cell 2. parenchyma cell 3. sclerenchyma cell 4. collenchyma cell 5. All are types of cells 6. meristem 7. ground tissue 8. dermal tissue 9. vascular tissue 10. mesophyll 11. All tissue types found in s 12. cohesion-tension theory 13. phloem 14. transpiration 15. pressure-flow model 16. xylem 17. All involve the vascular system of a 18. fibrous root 19. root cap 20. vascular cylinder 21. taproot 22. root hairs 23. All involve the roots of a 24. primary growth 25. meristem 26. secondary growth 27. all relate to the growth of a B. Compound Word Puzzle 1. collenchyma cell; provides support while allowing the to grow 2. secondary growth; takes place in woody s such as dicot trees 3. fibrous root; makes fine branches in which most of the roots are the same size 4. sclerenchyma cell; second cell wall is hardened by lignin 5. primary growth; takes place in apical meristems at the ends of stems and roots 6. petiole; attaches the leaf blade to the stem of a 7. blade; collects sunlight for a 8. taproot; one long vertical root with smaller branches C. Vector Vocabulary 1. are made of 2. the outer covering of a 3. the majority of tissue 4. makes up the vessels of a 5. is made of 6. transports water from roots to leaves 7. transports food throughout a 8. is explained by 9. is explained by 10. creates the main force pulling water through s 11. includes 12. the properties of water help move water through s 13. sugars are actively loaded at a source and unloaded at a sink Holt McDougal Biology Plant Structure and Function
CHAPTER 21 PLANT STRUCTURE AND FUNCTION Vocabulary Practice parenchyma cell collenchyma cell sclerenchyma cell dermal tissue ground tissue vascular tissue xylem phloem cohesion-tension theory transpiration pressure-flow model vascular cylinder root hair root cap meristem fibrous root taproot primary growth secondary growth blade petiole mesophyll guard cell A. Choose the Right Word Choose the term that best fits each description. Then, write a brief explanation of how the group of terms are related. parenchyma cell sclerenchyma cell collenchyma cell guard cell 1. Regulates gas exchange in a leaf 2. The most common type of cell 3. The strongest type of cell 4. A strong but flexible cell type 5. RELATIONSHIP: dermal tissue ground tissue mesophyll meristem vascular tissue 6. Undifferentiated tissue from which new cells are formed 7. Tissue most commonly found throughout a 8. Makes up the outer covering 9. Makes up xylem and phloem 10. Photosynthetic tissue found between the upper and lower surfaces of a leaf 11. RELATIONSHIP: Holt McDougal Biology 1 Plant Structure and Function
xylem transpiration pressure-flow model phloem cohesion-tension theory 12. Explains how water moves through a within xylem 13. Vessel that transports sugars made during photosynthesis 14. Force that pulls water up through the xylem like a vacuum 15. Explains how sugars move through a through the phloem 16. Vessel that allows the transport of water and dissolved minerals through a 17. RELATIONSHIP: root hair vascular cylinder taproot root cap fibrous root 18. Pattern of root growth where all branches are about the same size 19. Tough covering on the outer tip of a root 20. Center of a root containing xylem and phloem 21. Pattern of growth where one root grows the longest 22. Little projections on the surface of a root that help increase absorption 23. RELATIONSHIP: primary growth secondary growth meristem 24. Extends the length of roots and stems 25. Region of rapidly dividing cells that allow growth to occur 26. Increases the thickness of roots and stems 27. RELATIONSHIP: Holt McDougal Biology 2 Plant Structure and Function
B. Compound Word Puzzle Read the phrase and write the word that it most closely describes. Then write another phrase that describes the same word in a different way. PHRASE 1 WORD PHRASE 2 Example thin-walled cells parenchyma most common type of cell 1. cells with walls of uneven thickness 2. adds to the width in stems and roots 3. root system that spreads like a mat beneath the soil surface 4. the strongest type of cell 5. makes stems or roots grow longer 6. a thin stalk on a 7. broad and flat part of a leaf 8. allow s to get water from deep in the ground Holt McDougal Biology 3 Plant Structure and Function
Name: Class: Date: C. Vector Vocabulary Define the words in the boxes. On the line across each arrow, write a phrase that describes how the words in the boxes are related to each other. PLANTS 1. DERMAL TISSUE 2. GROUND TISSUE 3. VASCULAR TISSUE 4. 5. XYLEM 6. PHLOEM 7. 8. 9. TRANSPIRATION 10. COHESION-TENSION THEORY 12. PRESSURE-FLOW MODEL 13. 11. Holt McDougal Biology 4 Plant Structure and Function