biology

Spongy mesophyll

Air spaces between the cells that allow gases to diffuse through the leaf

Xylem

Transports water and minerals salts from roots to leaves

Phloem

Transports dissolved food materials through the plants

Meristem tissue

Found at the tips of roots and shoots where it can produce new cells for growth

Translocation

Method by which dissolved food is transported through phloem in plants

Transpiration

Loss of water from the leaves

Stomata

Openings/pores in the leaves of plants

Pathogens

Microorganisms that causes a disease

Vector

Organisms that carry and pass on the pathogen without getting the disease

Immune system

The body's defence system against infections and diseases