BIOL 152 Lecture Notes - Lecture 5: Vascular Cambium, Double Fertilization, Tracheid
17 Sep 2018
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Chapter 30: present the main characteristics that make seed bearing plants different from other plants: pollen, ovules, seeds, wood, understand, as presented in class, how wood is specialized for the transport of water and photosynthetic products. Wood is composed of empty water-conducting cells strengthened by lignin. Vascular cambium produces a thick layer of wood and thin layer of inner bark (phloeum=down). Have coralloid roots ( above the ground+resemble corals) and have cyanobacteria (diazotrophs): understand the differences in conifer cones. Pollen cones: seed cones: know how conifers are specialized for growing in cold climates: conical shape and flexible branches to prevent breakage of branches with the weight of snow. Their needle-like leaves prevent snow accumulation and water loss: give characteristics that make angiosperms unique from other plants. Flowers and fruits, the seeds are within the fruits: k(cid:374)ow a(cid:374)d recog(cid:374)ize the parts of a flower a(cid:374)d which parts are (cid:862)(cid:373)ale(cid:863) a(cid:374)d which are (cid:862)fe(cid:373)ale(cid:863).
