What are the classifications of algae?

There is three main Algae classification:
  • Chlorophyceae – These are called green algae, due to the presence of pigments chlorophyll a and b. …
  • Phaeophyceae – Also called as brown algae, they are predominantly marine. …
  • Rhodophyceae – They are the red algae because of the presence of the red pigment, r-phycoerythrin.

How many divisions were given by GM Smith for algal classification?

seven divisions
GM Smith (1950) classified algae into seven divisions. These divisions include one or more classes. He included certain algae of uncertain position into Chloromonadales & Cryptophyceae.

What is the basis of classification of algae Class 11?

NCERT Solution Part 1. Question 1: What is the basis of classification of algae? Answer: The presence or absence of pigments is the main basis of classification of algae.

Who proposed classification of algae on the basis of class?

Jean Pierre Étienne Vaucher (1803) was perhaps the first to propose a system of classification of algae, and he recognized three groups, Conferves, Ulves, and Tremelles.

What are the 7 levels of classification for algae?

Annotated classification
  • Division Chlorophyta (green algae) …
  • Division Chromophyta. …
  • Division Cryptophyta. …
  • Division Rhodophyta (red algae) …
  • Division Dinoflagellata (Pyrrophyta) …
  • Division Euglenophyta.

What are the 4 main types of algae?

The different divisions include:
  • Euglenophyta (Euglenoids)
  • Chrysophyta (Golden-brown algae and Diatoms)
  • Pyrrophyta (Fire algae)
  • Chlorophyta (Green algae)
  • Rhodophyta (Red algae)
  • Paeophyta (Brown algae)
  • Xanthophyta (Yellow-green algae)

Who is the father of algae?

Mandayam Osuri Parthasarathy Iyengar
Mandayam Osuri Parthasarathy Iyengar (15 December 1886–10 December 1963) was a prominent Indian botanist and phycologist who researched the structure, cytology, reproduction and taxonomy of algae. He is known as the “father of Indian phycology” or “father of algology in India”.

What are the 3 main classifications of algae?

There are 3 classes of algae: Chlorophyceae, Rhodophyceae, Phaeophyceae.

What is the five classification of algae?

A generally agreed classification of algae recognizes nine broad taxonomic groups, called Divisions. These are Chlorophycophyta, Xanthophycophyta, Bacillariophycophyta, Phaeophycophyta, Rhodophycophyta, Chrysophycophyta, Euglenophycophyta, Cryptophycophyta and Pyrrophycophyta.

How many phyla of algae are there?

15 phyla
For our purposes, algae are those organisms included in AlgaeBase (Table 1), which includes 15 phyla and 54 classes representing an incredible increase since I last took a university course in algae in the 1960s. Alga endings (“-phyceae”) for class names are used except for some of the Protozoa.

What are the classification of Pteridophyte?

The three different types of pteridophytes include: Ferns. Horsetails. Lycopods or Lycophytes.

What is thallus organization in algae?

Thallus organizations are found in algae and fungi. The thallus is an undifferentiated flat tissue. It ranges from simple filaments to complicated and unbranched tree-like filaments. It is a simple structure that lacks specialized tissue such as conducting tissues, stems, and leaves.

What is life cycle of algae?

The three types of the biological life cycle are haplontic, diplontic and haplodiplontic life cycle. The brown algae Fucus shows a diplontic life cycle. The haplontic life cycle is seen in most green algae. Some algae such as Ulva, Polysiphonia, Ectocarpus, Kelps have a haplodiplontic life cycle.

What is importance of algae?

In addition to making organic molecules, algae produce oxygen as a by-product of photosynthesis. Algae produce an estimated 30 to 50 percent of the net global oxygen available to humans and other terrestrial animals for respiration.

What is the scientific name of algae?

The algae are further grouped into various phyla and the suffix –phyta is used in the classification of algae: Euglenophyta (euglenids), Chrysophyta (diatoms), Pyrrophyta (dinoflagellates), Chlorophyta (green algae), Phaeophyta (brown algae), and Rhodophyta (red algae).

What is the structure of algae?

Algal cells are eukaryotic and contain three types of double-membrane-bound organelles: the nucleus, the chloroplast, and the mitochondrion. In most algal cells there is only a single nucleus, although some cells are multinucleate.

What is the reproduction of algae?

Many small algae reproduce asexually by ordinary cell division or by fragmentation, whereas larger algae reproduce by spores. Some red algae produce monospores (walled, nonflagellate, spherical cells) that are carried by water currents and upon germination produce a new organism.