BIOL 1209 Chapter : 20140408 155556
Document Summary
Cotyledon often remains within the confines of the seed. Buds: terminal buds (shoot apex) generally exercise apical dominance (high up on stem) over axillary buds. Whole plant growth is indeterminate (no predetermined size, doesn"t stop growing), but growth of some organs is determinate (grows to predetermined size). When a cell divides, the daughter cells grow and they may differentiate (specialize) depending especially on where they are located during development. What is wood: wood = secondary xylem, heartwood no longer conducts water, but strengthens stem, sapwood conducts water and minerals. 4 in shoot, 2 in root (6 total meristem cells) The broad category of nutrition includes all of the materials and energy needed for an organism to live and reproduce. How does water move up a plant against gravity: the cells at the top of the plant are the most metabolically active (that"s where growing is taking place), need water and minerals.
