Movement. (Striated/Voluntary, Smooth/Involuntary, and Cardiac).
Let us explore each of these topics in detail.
A tissue is a collection of structurally similar cells originating from the same embryonic source and performing a common function. Plant tissues are broadly classified into meristematic and permanent tissues.
The largest cytoplasmic organelles in plant cells, divided into three functional types: ssc biology chapter 2 hand note exclusive
A group of cells with a common origin performing a specific function is a tissue. A. Plant Tissues
Chloroplasts: Green, contain chlorophyll, responsible for photosynthesis. Chromoplasts: Colored (non-green) pigments. Leucoplasts: Colorless, store food.
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A specialized involuntary muscle found exclusively in the heart wall. Cells are cylindrical, branched, and feature distinct cross-striations and intercalated discs . They contract continuously without fatigue. Nervous Tissue Composed of specialized nerve cells called neurons .
Fluid: Blood and lymph, transporting nutrients, gases, and defense cells. Muscular Tissue
The "Powerhouse." Site of oxidative phosphorylation and ATP production. Chloroplast: Green, conducts photosynthesis. Chromoplast: Coloured (red/yellow), attracts pollinators. Leucoplast: Colourless, stores food. Ribosomes: Protein factories of the cell. Golgi Body: Packaging and secretion center. Lysosomes: Contains digestive enzymes; acts as the "suicide bag." 3. Plant Tissues Simple Tissue: Made of one type of cell. Parenchyma: Thin-walled, living, stores food. Collenchyma: Thickened at corners (pectin), provides flexibility. Sclerenchyma: Movement
Connects and supports other tissues (e.g., Blood, Bone, Cartilage).
Understanding tissue classification is a "must-know" for the CQ (Creative Question) section. A. Simple Tissues Consist of only one type of cell.
Cell Membrane (Plasma Membrane)
As you solve past papers or attend classes, you may come across new information or clarifications. Leaving some blank space in your hand notes allows you to add these insights without making the notes cluttered.
Colorful (red, yellow, orange), found in flowers and fruits to attract pollinators.