BIOL 1202 Lecture 2: BIOL 1202 Notes (Feb 13)
Document Summary
Dinoflagellates, apiocomplexans, and ciliates are placed in the alveolata because they all ___. Concept 31. 1: fungi are heterotrophs that feed by absorption. Fungal nutrition and lifestyles: fungi are heterotrophs, but do not ingest their food. Secrete exoenzymes into their surroundings that break down complex molecules. Absorb smaller organic molecules: fungi exhibit diverse lifestyles. Producer: some fungi have hyphae that allow them to capture animals and penetrate the tissues of their hosts, mycorrihizae are mutualisms between fungi and plant host. Endomycorrihizae- extends hyphae through root-cell wall: figure 31. 4 specialized hyphae. Concept 31. 2: fungi produce spores through sexual or asexual life cycles. Generalized fungi life cycle: figure 31. 5 fungi life cycle. Sexual reproduction: the sexual life cycle involves. Heterokaryotic stage is between plasmogamy and karyogamy. Cells have haploid nuclei from two parents. Nuclear fusion- karyogamy: the diploid phase following karyogamy is short lived and undergoes meiosis, producing haploid spores. Concept 31. 4: fungi have radiated into a diverse set of lineages.
