1. What are the strongest plant cells? – Choose from collenchyma, parenchyma
or sclerenchyma.
What are the protective cells at the very tip of the root
2.
called?
3. What is the function of xylem?
4. Which plant tissue has the same function as an animal’s skin?
5. What is the type of growth in woody plants that adds to the width
of stems and roots?
6. What does a tree ring represent?
7. Identify the following leaves as being compound or single.
8. What do we call the waxy layer on top of a leaf?
9. The organelle that is responsible for cellular respiration is…
10.Where in the cell does photosynthesis take place?
11.Which material in a plant provides support and help plants
maintain an upright structure? It is also responsible for the
strength of wood.
12.The most common plant cell type in plants. They store starch, oils
and water for the plant.
13.Explain what the vascular cylinder is.
14.
What does the scar on the tree indicate?
15.What is the lighter colored wood called? What is the darker
colored wood of a tree ring called?
16.Where in the leaf does most of the photosynthesis take place?
17.What type of growth does primary growth increase?
18. What organelle in a cell tells you it is an eukaryotic cell?
19. What is the function of the cells indicated by the arrow?
20. Which organelle in the cell can be compared to a storage facility?
Key for review – Chapter 21 Test
1. Sclerenchyma
2. Root cap
3. To transport water through the plant – from the roots to the leaves
4. Dermal tissue
5. Secondary growth
6. One year of growth
7. Compound, single, single, single
8. Cuticle – prevents water loss
9. Mitochondrion
10. Chloroplast
11. Lignin
12. Parenchyma
13. Found in the center of a root, made up of xylem and phloem.
14. Injury or damage caused by a cut, fire or disease.
15. Lighter – early wood – lots of water available during this growing season, the
cells grew quickly and fast.
Darker – late wood – not enough water available during this season, the cells grew
slowly, have thick cell walls.
16. Palisade parenchyma or palisade mesophyll
17. Length of the plant
18. Nucleus
19. Open and closes the stomata of the leaf
20. Vacuole