Match the following term to its correct definition palisade parenchyma bundle sheath leaf trace petiole spongy parenchyma leaf loosely packed cells on the underside of a leaf with large intercellular spaces for gas exchange a layer of cells surrounding the vascular tissue that are responsible for both nutrient loading and providing structure a structure that subtends an axillary bud columnar, closely-packed chlorenchyma cells on the upper surface of the leaf; primary photosynthetic tissue of most plants. a stalk the point at which stem vascular bundles branch before entering the leaf - A. B. C. D. E. F. palisade parenchyma - A. B. C. D. E. F. bundle sheath - A. B. C. D. E. F. leaf trace - A. B. C. D. E. F. petiole - A. B. C. D. E. F. spongy parenchyma - A. B. C. D. E. F. leafA. loosely packed cells on the underside of a leaf with large intercellular spaces for gas exchangeB. a layer of cells surrounding the vascular tissue that are responsible for both nutrient loading and providing structureC. a structure that subtends an axillary budD. columnar, closely-packed chlorenchyma cells on the upper surface of the leaf; primary photosynthetic tissue of most plants.E. a stalkF. the point at which stem vascular bundles branch before entering the leaf Solution Answer: 1. Palisade parenchyma----D. columnar, closely-packed chlorenchyma cells on the upper surface of the leaf; primary photosynthetic tissue of most plants. 2. bundle sheath---B. a layer of cells surrounding the vascular tissue that are responsible for both nutrient loading and providing structure 3. Leaf trace----F. the point at which stem vascular bundles branch before entering the leaf 4. Petiole---E. a stalk 5. spongy parenchyma----A. loosely packed cells on the underside of a leaf with large intercellular spaces for gas exchange 6. leaf---C. a structure that subtends an axillary bud.