Unit A - Unity and diversity

Hydrogen Bond

Special kind of attraction between molecules

Polar Covalent Bond

When atoms with different electronegativities share electrons in a covalent bond

Cohesion

When water molecules bonds with other water molecules

Adhesion

When water molecules bonds with other substances/molecules

Solvent

A substances that is able to dissolve/dilute other substances

Metabolism

All of the chemical reactions that occur within an organism that converts food into energy

Xylem

Vascular tissue that carries water upward from the roots to every part of a plant

Surface Tension

The top later of water/liquid that allows it to resist external force

Capillary Action

the process of a liquid flowing in a narrow space without the assistance of, or even in opposition to, any external forces like gravity.

Hydrophobic

Water hating substances

Hydrophilic

Water loving substances

Buoyancy

The ability or tendency to float in water or air or some other fluid

Viscosity

A liquid's resistance to flowing, changing shape, or movement

Thermal Conductivity

The ability of an object to transfer heat or conduct heat

Specific Heat Capacity

the amount of heat one gram of a substance must absorb or lose to change its temperature

Apoplast Pathway

The route taken by water between the cells or through the cell walls in a plant