Table of Contents
What is the meaning of Stramenopila?
Stramenopila is a large group including parasites (e.g. opalinids), saprobes (e.g. oomycetes), phagotrophs (e.g. bicosoecids) in addition to the major aquatic producers (Heterokontophyta).
What characteristic do stramenopiles share?
Stramenopiles. 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). These flagellates swim in the direction the hair-bearing flagellum is pointing.
What makes stramenopiles unique?
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 major characteristic do chromists have that make them plant like?
Unlike plants, the Chromista have chlorophyll c, and do not store their energy in the form of starch. Also, photosynthetic chromists often carry various pigments in addition to chlorophyll, which are not found in plants. It is these pigments which give them their characteristic brown or golden color.
What are examples of stramenopiles?
OchrophytaKelpGolden algaeOomyceteLabyrinthu…Diatom
Heterokont/Lower classifications
How are protozoans different from chromists?
The key difference between chromista and protista is that chromista is a biological kingdom comprised of unicellular or multicellular eukaryotic species such as algae, diatoms, oomycetes, and protozoans, while protista is a biological kingdom comprised of unicellular eukaryotic species such as protozoa, protophyta, and …
Why are chromists in ocean waters important for life on Earth?
Why are chromists in ocean waters important for life on Earth? Chromists in the oceans provide most of the oxygen in our atmosphere. Also, along with protozoans, they form the basis of the marine food chain. Kingdom Chromista includes all the photosynthetic protists except algae.
How do parabasalids move?
Parabasalids move with flagella and membrane rippling. Trichomonas vaginalis, a parabasalid that causes a sexually transmitted disease in humans, employs these mechanisms to transit through the male and female urogenital tracts.
How are protozoans different from chromists quizlet?
chromists play a relatively small role in marine ecosystems. most protozoans are motile, that is, they are capable of movement. protozoans and chromists were formerly classified in a single kingdom-Protista-that’s is not part of modern taxonomy. protozoans can move by means of cilica, flagella, or pseudopodia.
How do chromists reproduce?
Chromists reproduce through asexual reproduction, sexual reproduction, or alternating between the two.
How do Chromista eat?
Many chromist groups are photosynthetic, using colorful pigments to capture the energy of sunlight to fuel the manufacture of food. Because of this, chromists are often the most important primary producers in aquatic ecosystems, forming the base on which the food chain is built.
What are the basic characteristics of diplomonads?
Diplomonads are small cells, usually around 10 μm in length and often less. With the exception of the enteromonad organisms (see ‘Systematics’), diplomonads have a characteristic ‘doubled’ organization. Each cell has two identical-sized nuclei located alongside each other in the anterior half of the cell (Figure 4).
In what ways do diplomonads and parabasalids differ from each other?
Diplomonads are defined by the presence of a nonfunctional, mitochrondrial-remnant organelle called a mitosome. Parabasalids are characterized by a semi-functional mitochondria referred to as a hydrogenosome; they are comprised of parasitic protists, such as Trichomonas vaginalis.
Which of the following are features of parabasalids?
Parabasalids are characterized by a semi-functional mitochondria referred to as a hydrogenosome; they are comprised of parasitic protists, such as Trichomonas vaginalis. Euglenozoans can be classified as mixotrophs, heterotrophs, autotrophs, and parasites; they are defined by their use of flagella for movement.
How do diplomonads get energy?
Diplomonads do not possess mitochondria, and thus they cannot perform respiration and instead must obtain their energy from fermentative processes. Diplomonads are able to ferment sugars such as glucose to produce energy, and they are also capable of fermenting the amino acid arginine as a means of obtaining energy.