Fart Shit
Vascular Plant: Plants with specialized tissues (xylem and phloem) for transporting water, nutrients, and food.
Dermal Tissue: The outer protective covering of plants.
Epidermis: The outermost layer of cells in a plant, providing protection.
Cuticle: A waxy layer on the epidermis that prevents water loss.
Stomata: Pores on the leaf surface for gas exchange.
Guard Cells: Cells surrounding stomata that regulate their opening and closing.
Ground Tissue: Plant tissue responsible for photosynthesis, storage, and support.
Vascular Tissue: Specialized tissue (xylem and phloem) for transporting materials.
Periderm: Protective tissue that replaces epidermis in older plant regions.
Parenchyma Cells: Basic plant cells involved in photosynthesis and storage.
Sclerenchyma Cells: Cells providing structural support with thickened cell walls.
Collenchyma Cells: Cells that provide flexible support in growing parts of plants.
Xylem Cells: Cells transporting water and minerals from roots upward.
Tracheids: Long, thin xylem cells with tapered ends.
Vessel Elements: Shorter, wider xylem cells for water transport.
Phloem Cells: Cells transporting sugars throughout the plant.
Companion Cell: Phloem cells assisting sieve-tube elements with transport.
Sieve-Tube Elements: Phloem cells that form channels for nutrient flow.
Organ: A specialized plant structure (leaf, root, stem).
Tap Root: A main root that grows vertically downward.
Fibrous Roots: Thin roots spread out below the soil surface.
Root Hair: Tiny hair-like structures on roots for absorption.
Stem: Plant structure supporting leaves and flowers.
Node: Area on a stem where leaves are attached.
Internode: The segment between nodes.
Apical Bud: The growing point at a shoot’s tip.
Axillary Bud: Buds that form at the base of a leaf stem.
Petiole: The stalk attaching a leaf to the stem.
Blade: The flat part of a leaf.
Secondary Cell Walls: Additional layers providing rigidity to plant cells.
Indeterminate Growth: Growth that is continuous throughout life.
Determinate Growth: Growth that stops after a certain point.
Apical Meristems: Growth regions at the tips of roots and shoots.
Apical Dominance: Growth phenomenon where the main shoot inhibits lateral shoots.
Lateral Meristems: Growth tissues allowing width increase in stems and roots.
Vascular Cambium: Tissue responsible for secondary growth in plants.
Cork Cambium: Growth tissue producing the outer protective layer.
Root Cap: A cap protecting the root tip as it grows through the soil.
Cortex: The outer layer of a stem or root, storing nutrients.
Pith: Central tissue in some plant stems and roots.
Pericycle: A layer in roots from which lateral roots grow.
Leaf Primordia: Early stages of leaf development.
Plasticity: Ability to change growth patterns in response to the environment.
Chapter 36 - Plant Transport
Aquaporin: Proteins that facilitate water transport across cell membranes.
Xylem Sap: Water and dissolved minerals transported in the xylem.
Transpiration: Evaporation of water from plant leaves.
Root Pressure: Pressure pushing water up through the xylem.
Cohesion-Tension Hypothesis: Theory explaining how water is pulled up through plants.
Apoplastic Transport: Movement of substances along cell walls.
Symplastic Transport: Movement of substances through cytoplasm and plasmodesmata.
Transmembrane Transport: Transport of substances across cell membranes.
Water Potential: Measure of the potential energy in water.
Bulk Flow: Movement of a fluid in response to pressure differences.
Endodermis: Inner layer of the cortex regulating entry to vascular tissue.
Casparian Strip: A waterproof barrier in the endodermis.
Translocation: Movement of sugars and other nutrients through the phloem.
Sugar Source: Plant tissue producing sugar (usually leaves).
Sugar Sink: Plant tissue that uses or stores sugar.
Turgor Pressure: Pressure within cells that keeps them firm.
Chapter 39 - Plant Responses to Environmental Signals
Etiolation: Growth of plants in partial or complete absence of light.
De-Etiolation (Greening): Process by which plants grow normally when exposed to light.
Sessile: Fixed in one place; immobile.
Signal Reception: Detection of signals by receptors.
Signal Transduction: Process of converting a signal into a cellular response.
Signal Response: The action taken by a cell after signal transduction.
Hormone: Chemical signaling molecule regulating plant processes.
Auxin: Plant hormone promoting cell elongation.
Cytokinins: Hormones promoting cell division and growth.
Gibberellins: Hormones that stimulate stem elongation and seed germination.
Abscisic Acid: Hormone inhibiting growth and promoting dormancy.
Ethylene: Hormone associated with fruit ripening and stress responses.
Apical Dominance: Inhibition of lateral buds by the apical bud.
Tropism: Growth responses to environmental stimuli.
Triple Response to Mechanical Stress: Reaction of plants to physical obstacles.
Dormancy: State of reduced activity in seeds and buds.
Long-Day Plant: Plant flowering when daylight exceeds a critical length.
Phototropism: Growth of plants toward light.
Phytochromes: Light-detecting proteins regulating plant responses.
Salicylic Acid: Plant hormone involved in defense responses.
Second Messenger: Molecules that transmit signals within cells.
Senescence: Aging and programmed cell death in plants.
Short-Day Plant: Plant flowering when daylight is shorter than a critical length.
Strigolactone: Hormone regulating shoot branching.
Systemic Acquired Resistance: Plant defense mechanism.
Thigmomorphogenesis: Growth response to mechanical stimulation.
Gravitropism: Growth in response to gravity.
Heat-Shock Protein: Proteins that help plants survive heat stress.
Circadian Rhythm: Biological cycles with a 24-hour period.
Day-Neutral Plant: Plant that flowers regardless of day length.