What is the scientific name of diatoms?
BacillariophyceaeDiatom / Scientific name
diatom, (class Bacillariophyceae), any member of the algal class Bacillariophyceae (division Chromophyta), with about 16,000 species found in sediments or attached to solid substances in all the waters of Earth.
What is a group of diatoms called?
Diatoms belong to a large group called the heterokonts, which include both autotrophs such as golden algae and kelp; and heterotrophs such as water moulds. The classification of heterokonts is still unsettled: they may be designated a division, phylum, kingdom, or something intermediate to those.
What are the two types of diatoms?
Diatoms are divided into two groups that are distinguished by the shape of the frustule: the centric diatoms and the pennate diatoms.
What do Desmids and diatoms have in common?
– They are Free swimming types of algae. – Diatoms are stramenopile algae, their cell wall is composed of silica and their chloroplasts are yellowish- brown. Desmids are a group of green algae in which their cell wall is composed of cellulose and pectins (like that of plants) , and their chloroplasts are green.
Where are diatoms found?
Diatoms are photosynthesising algae, they have a siliceous skeleton (frustule) and are found in almost every aquatic environment including fresh and marine waters, soils, in fact almost anywhere moist.
Which elements are most common in a molecule of maltose *?
Maltose Key Terms
- Carbohydrate: major nutrient and energy source made up of carbon, hydrogen, and oxygen.
- Maltose: carbohydrate combining two glucose units; it’s a disaccharide.
- Glucose: carbohydrate containing 6 carbons, 6 oxygens, and 12 hydrogens.
Which group includes diatoms and desmids?
Chrysophytes
Chrysophytes include diatoms and desmids. They belong to the division Chrysophyta/Bacillariophyta.
Diatoms are divided into two groups that are distinguished by the shape of the frustule: the centric diatoms and the pennate diatoms . Pennate diatoms are bilaterally symmetric. Each one of their valves have openings that are slits along the raphes and their shells are typically elongated parallel to these raphes.
What is the cell structure of a diatom?
Diatoms are also known as golden algae. The cell structure of diatoms is unicellular. These organisms are eukaryotic in nature. They have the holophytic mode of nutrition because they possess chloroplast.
What type of protist is a diatom?
Diatoms belong to a large group of protists, many of which contain plastids rich in chlorophylls a and c. The group has been variously referred to as heterokonts, chrysophytes, chromists or stramenopiles.
Where are diatoms found in the ocean?
Diatoms are a widespread group and can be found in the oceans, in fresh water, in soils, and on damp surfaces. They are one of the dominant components of phytoplankton in nutrient-rich coastal waters and during oceanic spring blooms since they can divide more rapidly than other groups of phytoplankton.