Site Glossary

Plant tissue specialized for photosynthesis.

a leaf cell specialised for photosynthesis.

The ideal curved trajectory of a projectile.

The component of a force acting along the slope.

An astronomical distance equal to about 3.26 light-years.

A membrane that allows some substances to cross more easily than others.

A general term for atoms, molecules, or ions that make up matter.

a model describing matter as tiny particles in constant motion.

Temporary protection gained by receiving antibodies from another source.

Movement across a membrane that does not require cellular energy.