Plastids Class 9th New Book 2025 | Chloroplast,Chromoplast,Leucoplast | Episode No 12 | Season No 03
#PlastidsClass9thNewBook2025 #ChloroplastClass9thNewBook2025 #ChromoplastClass9thNewBook2025 #LeucoplastClass9thNewBook2025 #EpisodeNo12 #SeasonNo03 #Class9thNewBookBiology2025 #Class9thNewBookChemistry2025 #Class9thNewBookPhysics2025 #Tags plastids class 9,plastids,plastids class 11,plastids structure and function,plastids in hindi,plastids in plant cell,plastids for class 9th,plastids 9th class,types of plastids,chloroplast class 9,plastids structure and function class 9,plastids for class 9,chloroplast class 11,plastids and its types,plastids class 9 biology,plastids in urdu,plastids class 8,plastids class 10,fundamental unit of life class 9,plastid class 11,plastids definition ................................................................................................................................................................ Follow the Hadi Academy (Education For All) channel on WhatsApp: https://whatsapp.com/channel/0029VagS... Notes By Sir.Hadi: 🧪 Plastids ➡️ Definition Plastids are double-membrane organelles found in the cells of plants and algae that are involved in the synthesis and storage of food. ➡️ Structure Outer membrane – Smooth and protective. Inner membrane – Controls the movement of molecules. Stroma – Fluid-filled space containing enzymes, ribosomes, and DNA. ➡️ Types of Plastids Chloroplast Contains the green pigment chlorophyll. Site of photosynthesis (conversion of light energy into chemical energy). Structure: Thylakoid: Flattened sacs where light-dependent reactions occur. Granum: Stack of thylakoids. Stroma: Fluid where the Calvin cycle takes place. Function: Photosynthesis – produces glucose and oxygen. Stores starch. Chromoplast Contains pigments like carotenoids (yellow, orange, red). Responsible for the color of fruits, flowers, and leaves. Function: Attracts pollinators and seed dispersers. Provides color to fruits and flowers. Leucoplast Colorless plastids. Located in non-photosynthetic tissues (e.g., roots, tubers). Three types: Amyloplast – Stores starch. Elaioplast – Stores oils and fats. Proteinoplast – Stores proteins. Function: Stores nutrients (starch, oils, proteins). Helps in biosynthesis of fatty acids and amino acids. ✅ Functions of Plastids ✔️ Photosynthesis (chloroplasts). ✔️ Storage of starch, oils, and proteins (leucoplasts). ✔️ Providing color to plant parts (chromoplasts). ✔️ Synthesis of organic compounds. ✅ MCQs 1. Plastids Q1. Which plastid is responsible for photosynthesis? A) Leucoplast B) Chloroplast C) Chromoplast D) Amyloplast 👉 Answer: B) Chloroplast Q2. Which plastid stores starch? A) Chromoplast B) Chloroplast C) Amyloplast D) Elaioplast 👉 Answer: C) Amyloplast .......................................................................................................................................................................................................... For more details contact on this number 0302-7762964
