Penicillin is produced by the Penicillium fungus, which is grown in a broth whose sugar content must be carefully controlled. Several samples of broth were taken on each of three successive days, and the amount of dissolved sugars (in mg/mL) was measured on each sample. The results were as follows:
Can you conclude that the mean sugar concentration differs among the three days?
Chapter 34 The Plant Body, Form, and Function Important Vocabulary / Concepts • How is plant diversity organized • Plant cells, tissues, organs • How tissues are organized in plants • Plant meristem: how plants grow and what is wood • Remember: structure and function are related! • Vocabulary Warning: differences between cells and tissues (a group of cells working together to perform a common function) How is Plant Diversity Organized • Angiosperms - flowering plants, most of them belong in one of two major clades (dicots and monocots) which accounts for 97% of all flowering plant species. • Monocots - generally narrow-leaved flowering plants such as grasses, lilies, orchids, and palms. • Eudicots (dicots) - broad-leaved flowering plants such as soybeans, roses, sunflowers, and samples. • Cotyledon - baby plant leaf, an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear from a germinating seed. Plant Cells, Tissues, and Organs • The root system - attaches the plant in place, absorbs water and dissolves minerals, stores the products of photosynthesis. • The shoot system - stem, leaves and flowers. • Leaves: chief organ of photosynthesis • Stem: hold and display the leaves to the sun and provide connections for transport of material between root and leaves. • Flowers: reproductive purposes • Shoots and roots are composed of repeating modules called phytomers. • Each phytomer consist of a node (carrying one or more leaves), an internode (the interval of stem between
