Ssc Biology Chapter 2 Hand Note Exclusive |work| Now

Chapter 2: Structure of Atom

• Types:

  The jelly-like part excluding the nucleus. It’s where most metabolic activities happen. 2. Organelles to Memorize Mitochondria: Powerhouse . Focus on the . Essential for ATP production. Found only in plants. Chloroplasts (green) are for food, Chromoplasts (colored) for attracting pollinators, and Leucoplasts (colorless) for storage. Ribosomes: The protein factories. Golgi Body: The "Packaging Center" of the cell. 3. The Nucleus: The Brain Don't forget the four parts: ssc biology chapter 2 hand note exclusive

  A. Plant Tissues

  1. Meristematic Tissue:

  7. Cell Membrane Transport

  • Phloem: Transports prepared food (glucose) from leaves to the rest of the body. Components: Sieve tubes, Companion cells, Phloem Parenchyma, and Phloem Fiber. 5. Animal Tissues: A Quick Breakdown There are four primary types of animal tissues: Epithelial: Covers surfaces (Skin, Lining of organs). Chapter 2: Structure of Atom

    : A fundamental concept stating that the cell is the basic unit of life and that all organisms are composed of one or more cells. Prokaryotic vs. Eukaryotic Cells Prokaryotes : Lack a defined nucleus; circular DNA; generally smaller. Eukaryotes : Possess a true nucleus and membrane-bound organelles. Plant Cell Wall Types: The jelly-like part excluding the nucleus

    1. Cell Membrane: Thin, semi-permeable, selectively permeable membrane surrounding the cell.
    2. Cytoplasm: Jelly-like substance inside the cell membrane where many metabolic processes occur.
    3. Nucleus: Control center of the cell, contains most of the cell's genetic material (DNA).
    4. Mitochondria: Powerhouses of the cell, generate energy through cellular respiration.
    5. Endoplasmic Reticulum (ER): Network of membranous tubules and cisternae involved in transport and synthesis.
    6. Ribosomes: Small organelles found throughout the cytoplasm, responsible for protein synthesis.