Botany: An Introduction to Plant Biology

absorb acid active adapted affect algae alleles allow amino amount animals bacteria base become body bonds branch called cambium carbon dioxide carry cause cells Chapter chemical chromosomes closely complex compounds contains cycle cytoplasm division electrons elements energy enzymes evolution evolved example extremely Family Figure flowers fruits function fungi gametophytes genes glucose grow growth important increase individuals initials involved known later layer leaf leaves less light living mature membrane meristem metabolism molecules move mutations natural needed nucleus occur Order organisms original oxygen parenchyma phloem photosynthesis plants pollen potential present primary produce protein reaction reduced regions released remain reproduction respiration result roots secondary seeds selection sexual reproduction shoot short side sieve similar simple soil species spores stem structure sugars surface Table tissues transport trees types usually vascular wall wood xylem