Trent University Biology 3180 Lab #3: Roots and Leaves Part 1 Quiz

Simple leaves = Consist of one blade connected to the petiole Compound leaves = Have several leaflets sharing one petiole Palmate leaflets = Arise from a central area, similar to fingers arising from the palm Pinnate leaflets = Arise in rows along a central midline

Parallel veins = Extend the entire length of the leaf with little or no cross-linking Pinnately veined leaves = Have one major vein (midrib) from which other veins branch Palmately veined leaves = Have several main veins each having branches Continuous veins = Veins of vascular tissue in leaves are continuous with vascular bundles in stems

Opposite phyllotaxis = Refers to two leaves per node located on opposite sides of the stem Alternate phyllotaxis = Refers to one leaf per node, with leaves appearing first on one side of the stem and then on another Whorled phyllotaxis = Refers to more than two leaves per node Parallel phyllotaxis = Refers to parallel arrangement of leaves along the stem

<p>Petiole = Attaches the leaf blade to the stem Blade = The main photosynthetic structure of the leaf Midrib = The central vein of a compound leaf that gives rise to other veins Vascular bundles = Continuous with veins of vascular tissue in leaves</p> Signup and view all the answers

<p>Fibrous (diffuse) root system = Consists of thin, branching roots spread out in the soil Taproot system = Consists of a large central root with smaller lateral roots branching off Adventitious roots = Arise from an organ other than the root, such as stem or leaves Mature Ranunculus root = Cross-section reveals the internal structure of a fully developed root</p> Signup and view all the answers

<p>Anchor the plant to the soil = Roots provide stability and prevent the plant from being uprooted Absorb water and dissolved minerals = Roots take up essential nutrients and moisture from the soil Translocate water and dissolved minerals = Roots transport absorbed water and nutrients throughout the plant Vegetative propagation = Adventitious roots enable plants to reproduce asexually from stems or leaves</p> Signup and view all the answers

<p>Cross-section of a mature Ranunculus root = Reveals the internal anatomy of a fully developed root Cross-section of a young Ranunculus root = Shows the internal structure of an immature root Differences between tap roots, fibrous roots, and adventitious roots diagram = Illustrates the visual disparities between different types of root systems Adventitious roots arising from stem or leaves = Demonstrates an example of non-traditional root development</p> Signup and view all the answers