Leaves
Chief organ of photosynthesis.
Leaves.
Flat, broad portion of the leaf.
Blade.
Plants with nonwoody stems are called...
Herbaceous plants
Main functions of roots
Anchor the plant and absorb water/minerals
Protects the apical meristem as the root pushes through soil.
Root cap
Stalk that connects the blade to the stem.
Petiole
Tightly packed mesophyll layer where most photosynthesis occurs.
Palisade mesophyll
Ground tissue in the center of a eudicot stem.
Pith.
Tiny projections that greatly increase absorption.
Root hairs.
Region where cells are actively dividing.
Zone of cell division.
Leaves with one undivided blade are called.
Simple leaves
Loosely packed mesophyll layer with air spaces.
Spongy mesophyll
Tissue beneath the epidermis in a eudicot stem.
Cortex
Main root of a carrot.
Taproot.
Region where cells lengthen and begin specializing.
Zone of elongation.
Modified leaves used for climbing.
Tendrils
Leaf veins contain these two vascular tissues.
Arrangement of vascular bundles in eudicot stems.
Ring.
Root system common in grasses.
Region where fully differentiated cells and root hairs are found.
Zone of maturation.
Name three leaf modifications and their functions.
Tendrils = climbing; Venus flytrap leaves = insect traps; Cactus spines = reduce water loss/protection
Compare palisade and spongy mesophyll.
Palisade = tightly packed, photosynthesis; Spongy = loosely packed, gas exchange & water evaporation.
Compare herbaceous and woody stems.
Herbaceous = primary growth only; Woody = primary + secondary growth, produces wood and bark
Compare taproots, fibrous roots, and prop roots
Taproot = storage; Fibrous = soil anchorage; Prop roots = extra support
Name the five tissues of a root and one function of each.
Vascular tissue (transport), Endodermis (controls mineral entry), Pericycle (forms lateral roots), Cortex (food storage), Epidermis (protection/root hairs)