KEY CONCEPT Plants have specialized cells and tissue systems.

1. KEY CONCEPTPlants have specialized cells and tissue systems.

2. Parenchyma cells are the most common plant cell type. store starch, oils andwater help heal wounds tothe plant have thin flexible walls Plant tissues are made of three basic cell types.

3. they are strong and flexible. celery strings are strands of collenchyma. they have unevenly thick cell walls. • Collenchyma cells provide support to a growing plant.

4. second cell wall hardened by lignin die when they reach maturity used by humans to make linen and rope makes up the hard or gritty part of a fruit or vegetable • Sclerenchyma cells are the strongest plant cell type.

5. Dermal tissue covers the outside of a plant. protects the plant secretes cuticle of leaves forms outer bark of trees Plant organs are made of three tissue systems.

6. provides support stores materials in roots and stems most commonly made of parenchyma • Ground tissue is found inside a plant.

7. two networks of hollow tubes xylem transports water and minerals phloem transports photosynthetic products stem leaf root • Vascular tissue transports water, minerals and organic compounds.

8. Which type of cell is found in the hard or gritty parts of fruits and vegetables? • Collenchyma • Sclerenchyma • Parenchyma • Plasmodesmata

9. Plant cells that have thin walls and store starch, oils, and water are • Parenchyma • Collenchyma • Sclerenchyma • Vascular cells

10. Dead parenchyma cells that make up bark form a type of • Collenchyma tissue • Vascular tissue • Dermal tissue • Ground tissue

11. A plant’s ground tissue is found • In its outer layer • Only in its leaves • Above the ground • Throughout the plant

12. Water and dissolved minerals are carried from the roots to the rest of the plant by the • Dermal tissue • Ground tissue • Xylem • Phloem