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.

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.

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.

Thigmomorphogenesis

A response in plants where physical touch or mechanical stress (like wind or touch) influences growth patterns, leading to sturdier and sometimes shorter plants.

Heat-Shock Protein

A type of protein produced by plants (and other organisms) when exposed to stressful heat conditions; these proteins help protect and repair damaged cellular proteins under heat stress.