Plant System's vocab

For the 3/19/25 vocab quiz

Cellular respiration

The aerobic harvesting of energy from food molecules

Stomata

Microscopic pore surrounded by guard cells in the epidermis of a leaf. When it opens, CO2 enters, and H2O & O2 enter.

Spore

A haploid all that can develop into another multicellular individual without fusing with another cell

Pollen

A mass of microspores in a seed plant necessary for fertilization

Phloem

A portion of a plant’s vascular tissue system that transports sugars and other organic nutrients from the leaves.

Bryophyte

A plant that lacks xylem and phloem, like mosses.

Gymnosperm

A naked seed plant (Not enclosed in an ovary)

Photosynthesis

The process by which plants convert light energy to chemical energy

Guard cell

A specialized epidermal cell in plants that regulates the size of a stomata

Seed

A plant embryo packaged with a food supply within a protective covering

Cuticle

A waxy coating on the leaves

Xylem

The nonliving portion of a plant’s vascular system that provides support and conveys xylem sap from the roots to the rest of the plant

Seedless vascular plants

Plants that contain both xylem and phloem but still reproduce using spores instead of seeds.

Angiosperm

A flowering plant, which forms seeds inside an ovary