Seaweed, any of the red, green, or brown marine algae that grows along seashores. Carrageenan is made from parts of various red algae or seaweeds and is used for medicine. Synonyms for algae at Thesaurus.com with free online thesaurus, antonyms, and definitions. Defining Microalgae microalgae: small microscopic aquatic photosynthetic plants that require the aid of a microscope to be seen.
2. A more likely source is alliga, 'binding, entwining'. Enrich your vocabulary with the English Definition … Carrageenan is used for coughs, bronchitis, tuberculosis, and intestinal problems. Red algae gain their often brilliant colors thanks to the pigment phycoerythrin. Marine algae have traditionally been placed in groups such as: green algae, red algae, brown algae, diatoms, coccolithophores and dinoflagellates. Instead, marine algae are a group of species from the Protista kingdom that fall into three distinct groups:D E N N I S A X E R Photograph / Getty ImagesAlthough algae are not plants, they do share some basic characteristics with them. Seaweeds also have plant-like cell walls. A mass of such algae. Learn more. Following, you will find the most outstanding characteristics of these plants, which have become really popular and useful in recent years. More than 4,000 species of green algae exist on the planet. Even though they may look like underwater plants—in some cases, growing in excess of more than 150 feet in length—seaweeds are not plants at all. However, unlike plants, seaweeds have no root or internal vascular systems, nor do they produce seeds or flowers, both of which are required to be classified as plants.While a little bit of algae is a normal facet of a healthy aquarium ecosystem, if left unchecked, it will cover pretty much every surface in an amazingly short span of time. Take this definition of algae and put it together with micro and macro to see what you get. While some aquarium owners use chemicals to keep the algae in check, most prefer to introduce one or more species of algae-eating catfish (sometimes referred to as "suckerfish") or snails into the environment to keep algae at a manageable level.

They are members of the kingdom Protista meaning they are not Plants. Like plants, marine algae use chlorophyll for photosynthesis. Seaweeds include members of the red, brown and green algae. Please try again.One of the most widely consumed seaweeds, kelp contains many important vitamins and minerals including vitamin K, vitamin A, vitamin C, folate, vitamin E, vitamin B12, vitamin B6, thiamin, riboflavin, niacin, pantothenic acid, iodine, calcium, magnesium, iron, sodium, phosphorus, as well as small amounts of zinc, copper, manganese, and selenium.There are more than 6,000 species of red algae. Many show a well-established zonation along the margins of the seas, where the depth of the water is 50 metres (about 165 feet) or less.