Algae and Bryophytes Overview

These flashcards cover key terms and definitions related to algae and bryophytes as learned in the lecture.

Bryophytes

Non-vascular plants including liverworts, hornworts, and mosses.

Gymnosperm

Seed-producing plants that include conifers, characterized by having seeds unprotected by an ovary.

Angiosperms

Flowering plants that produce seeds enclosed within a fruit.

Chlorophyta

Division of green algae, known for its chlorophyll pigments.

Phaeophyta

Division of brown algae, typically found in marine environments.

Rhodophyta

Division of red algae, often found in deep waters.

Diatoms

Phylum Chrysophyta; characterized by their silica-based frustules.

Dinoflagellates

Phylum Pyrrhophyta; unicellular organisms with two flagella, some cause red tides.

Isogamy

Reproduction involving gametes of the same size.

Anisogamy

Reproduction involving gametes of different sizes.

Oogamy

A form of anisogamy where the egg is non-motile and the sperm is motile.

Coenobium

A colony of unicellular organisms that are interconnected.

Volvox

A genus of green algae, known for its spherical colonies and a distinct life cycle.

Spirogyra

Filamentous green algae characterized by spiral chloroplast arrangement.

Oedogonium

Filamentous green algae known for its oogamous reproduction.

Euglenophyta

Division including euglena, characterized by their flagella and photosynthetic capabilities.

Agar

Substance extracted from red algae, used in food and laboratory settings.

Conceptacle

Structures in some algae that house reproductive organs.

Meiosis

The type of cell division that produces reproductive cells (gametes).

Zygote

The fertilized egg, the initial cell formed when two gametes unite.

Phycobilins

Photosynthetic pigments found in red algae that assist in capturing light.

Tissue development

The process in multicellular organisms where cells differentiate into various tissues.