BSC 2011C Chapter Notes - Chapter 32: Blastomere, Blastula, Gastrulation
Document Summary
Animals are effective eating machines in part because they have specialized muscle and nerve cells that enable them to detect, capture, and eat other organisms. Animals are also very good at processing food they have eaten. Concept 32. 1: animals are multicellular, heterotrophic eukaryotes with tissues that develop from embryonic layers: animals differ from both plants and fungi in their mode of nutrition a. i. Plants are autotrophic eukaryotes capable of generating organic molecules through photosynthesis a. ii. Fungi are heterotrophs that grow on or near their food and that feed by adsorption a. iii. Animals need to ingest their food and have enzymes that digest: animals are eukaryotes and are multicellular b. i. They have unique intercellular junctions b. i. 1. b. i. 2. b. i. 3. Gap junctions: lack the structural support of cell walls c. i. Proteins external to the cell membrane provide this support and most abundant is collagen: tissues groups of similar cells that act as a functional unit d. i.
