Which of the following characteristics is unique to the stramenopiles?

Which of the following characteristics is unique to the stramenopiles?

The unifying feature of this group is the presence of a textured, or “hairy,” flagellum. Many stramenopiles also have an additional flagellum that lacks hair-like projections. Members of this subgroup range in size from single-celled diatoms to the massive and multicellular kelp.

What do stramenopiles include?

The stramenopiles include a diversity of forms, ranging from unicellular (e.g. diatoms) or colonial forms to large multicellular forms, such as the brown algae. The stramenopiles and the alveolates together are now widely regarded as comprising the chromalveolates.

Do stramenopiles reproduce asexually?

Asexual reproduction by means of binary fission, zoosporogenesis, sporogenesis etc. Isogamy to oogamy are known in the sexual reproduction of stramenopiles. Although stramenopiles usually show diplontic life cycle (opalinids, oomycetes, diatoms, Raphidophyceae), the life cycle of brown algae is veried.

Are stramenopiles heterotrophic?

A subgroup of chromalveolates, the stramenopiles, also referred to as heterokonts, includes photosynthetic marine algae and heterotrophic protists.

What characteristics do Alveolates share?

Characteristics. The most notable shared characteristic is the presence of cortical (outer-region) alveoli (sacs). These are flattened vesicles (sacs) packed into a continuous layer just under the membrane and supporting it, typically forming a flexible pellicle (thin skin).

Which of the following is a characteristic of the water molds Oomycetes )?

17) Which of the following is a characteristic of the water molds (oomycetes)? They possess pigments that reflect and transmit red light.

What do stramenopiles do?

Some of the bacterivorous stramenopiles, such as Cafeteria are common and widespread consumers of bacteria, and thus play a major role in recycling carbon and nutrients within microbial food webs.

How many species of stramenopiles are there?

100,000 species
That can be the case with stramenopiles, a large group of organisms composed of cells with a distinct form of chlorophyll. There are roughly 100,000 species of different stramenopiles, most of which are various types of algae.

Are all stramenopiles photosynthetic?

Stramenopiles (also called the heterokonts) are a vast and complex group of organisms that consist of both photosynthetic and nonphotosynthetic cell types as well as unicellular and multicellular species (Andersen, 2004).

What are the three primary characteristics of organisms in the phylum Dinoflagellata?

Dinoflagellates (Division or Phylum Pyrrhophyta) are a group of primarily unicellular organisms united by a suite of unique characteristics, including flagellar insertion, pigmentation, organelles, and features of the nucleus, that distinguishes them from other groups.

What do all Alveolata have?

Alveolates have a system of flattened vesicles (alveoli) that closely underlie the plasma membrane, creating a pellicle structure that is composed of three unit membranes.

Are all Stramenopiles photosynthetic?

What kind of hairs does a stramenopile have?

A.G.B. Simpson, Y. Eglit, in Encyclopedia of Evolutionary Biology, 2016 Stramenopiles (also known as heterokonts) usually have a flagellate stage in the life cycle that has a characteristic type of stiff tubular ‘hairs’ arranged in two rows on one flagellum (see Patterson, 1999 ).

What kind of environment does Stramenopila live in?

General Characteristics. _. Stramenopila is a group that includes brown algae, kelps, diatoms, and water molds. Generally live in marine environments. Even the giant brown algae lack the complex vascular systems of land plants. Water molds (oomycetes) can be parasitic.

How big are the Stramenopiles in the Chromalveolata?

Domain Eukaryota. Stramenopiles. The Stramenopiles are a very large algal kingdom presently included in the Chromalveolata.They range in size from single-celled diatoms to giant multicellur kelp. The definition and organization of the Stramenopiles remain disputed.

How many species are there in the stramenopile group?

Stramenopiles is a monophyletic eukaryotic group characterized by the presence of two flagella, of which the immature flagellum bears tripartite hairs. The group comprises 21 classes with >100 000 species.