Ks3 Plants Key Words

Plants

Cell Wall

Strengthens the cell. In plant cells it is made of cellulose.

Chlorophyll

Green pigment in plants and algae which absorbs light energy.

Chloroplast

Absorbs light energy so the plant can make food.

Diffusion

One way for substances to move into and out of cells.

Guard Cells

A pair of curved cells that surround the stomata.

Osmosis

The movement of water molecules across a selectively permeable membrane from a region of higher water concentration to a region of lower water concentration.

Phloem

The tissue in plants that transports the products of photosynthesis.

Photosynthesis

A process where plants and algae turn carbon dioxide and water into glucose and release oxygen.

Root Hair Cell

A specialised cell that increases the surface area of the root epidermis to improve the uptake of water and minerals.

Stomata

Pores in the bottom of a leaf which open and close to let gases in and out.

Translocation

The transport of dissolved material within a plant.

Transpiration

The loss of water from leaves by evaporation through the stomata.

Vacuole

Found in the centre of a cell containing fluid.

Xylem

Responsible for the transport of water and minerals in plants.