Kingdom Plantae (Macroalgae and Plants)

• Primarily autotrophic; some heterotrophic, a few saprophytic.
• Organisms multicellular (except some algae; plant-like protists) with walled and frequently vacuolate eukaryotic cells.
• Autotrophic by means of photosynthesis; photosynthetic pigments are chlorophylls present in plastids (chloroplasts).
• Reproduction primarily sexual, with haploid and diploid stages alternating with each other (alternation of generations); embryo
• Food reserve is usually starch and fat.
• Growth is usually indefinite; growing points are well-defined.