1Diapositiva 12

Apuntes

[Diapositiva 1] Plants – Complete Presentation (1st Year ESO) Characteristics, Functions, Classification, and Uses [Diapositiva 2] 🌱 What Are Plants? Plants are living organisms in the Plant Kingdom. They are multicellular, eukaryotic, and autotrophic (make their own food). Plants are essential for life on Earth: they produce oxygen, form habitats, and are the base of food chains. [Diapositiva 3] 🌿 General Characteristics of Plants - Autotrophic (make their own food with photosynthesis) - Contain chlorophyll (green pigment) - Have roots, stems, and leaves - Do not move - Have cell walls made of cellulose - Grow in soil, water, or surfaces [Diapositiva 4] 🌞 Vital Function 1: Nutrition Plants absorb water (roots), carbon dioxide (air), and sunlight (leaves). These are used in photosynthesis to create food (glucose). Photosynthesis: CO₂ + H₂O + Sunlight → Glucose + Oxygen [Diapositiva 5] 🌱 Vital Function 2: Reproduction - Sexual: with flowers and seeds - Asexual: from roots, stems, or leaves - Also by spores (ferns, mosses) - Main methods: seeds, spores, cuttings, runners [Diapositiva 6] 🌍 Vital Function 3: Sensitivity (Response) Plants react to their environment: - Phototro...