Plant Nutrition and Transport

Flashcards covering key terms and concepts from the lecture on Plant Nutrition and Transport.

Limiting Factors

Nutritional requirements that can restrict plant growth when they are limited.

Humus

Organic matter in soil that consists of decaying plant matter and contains nutrients.

Cation Exchange

The process where mineral cations on clay particles are replaced with hydrogen ions facilitated by plant root excretion.

Turgor Pressure

The force of water pushing a cell membrane against the cell wall, determining cell rigidity.

Transpiration

Loss of water by evaporation, primarily from leaves, that generates negative pressure in xylem.

Apoplastic Transport

Movement of substances through the spaces between cells or along cell walls.

Guard Cells

Specialized cells that surround stomata and control their opening and closing.

Photosynthesis

The process by which plants convert light energy into chemical energy (glucose) using CO2 and H2O.

Stomata

Pores in leaf surfaces that allow gas exchange, surrounded by guard cells.

Phloem

Vascular tissue responsible for the transport of sugars and other metabolic products downward from the leaves.