Table of Contents
Which spores are characteristic of Penicillium?
Species of Penicillium are recognized by their dense brush-like spore-bearing structures called penicilli (sing.: penicillus). The conidiophores are simple or branched and are terminated by clusters of flask-shaped phialides.
Which of the following groups of algae does not produce a compound that is toxic to humans?
All are unicellular. All of the following groups of algae produce compounds that are toxic to humans except: Green algae.
Which of the following organisms is Photoautotrophic?
Green plants and photosynthetic bacteria are examples of photoautotrophs. They are not to be confused with photoheterotrophs, which also make energy from light but cannot use carbon dioxide as their sole source of carbon, and instead use organic materials.
What is an encysted larva of the beef tapeworm called?
The encysted larva of the beef tapeworm is called a. cysticercus. The life cycle of the fish tapeworm is similar to that of the beef tapeworm.
Which spores are produced endogenously?
So, the correct option is ‘Conidia are the asexual spores produced endogenously on conidiophores.
Which of the following groups of algae produce domoic acid?
Domoic acid is produced by diatoms of the genus Pseudo-nitzschia and is also found in red algae.
What toxins are produced by blue-green algae?
Blue-green algae can produce both nerve toxins (neurotoxins) and liver toxins (hepatotoxins). Call your doctor or veterinarian right away if you or your pets or livestock have signs of poisoning. Residential drinking water is sometimes taken from a lake.
Which of the following are Photoautotrophic eukaryotes?
Eukaryotic photoautotrophs include red algae, haptophytes, stramenopiles, cryptophytes, chlorophytes, and land plants. These organisms perform photosynthesis through organelles called chloroplasts and are believed to have originated about 2 billion years ago.
Are fungi photoautotrophs?
Understanding Fungi : Example Question #5 By definition, fungi are chemoheterotrophs. They are unable to produce their own food through photosynthesis; like humans, they must gather their food from their environment.
What is the larva of Taenia saginata?
Larval encystment usually occurs in striated muscle and the central nervous system, and within 8 to 11 weeks the larvae, termed Cysticercus solium (cellulosae) in hogs and Cysticercus bovis in cattle, become infectious. Cysticerci are ellipsoid, translucent bladder-like cysts in which an inverted scolex has developed.
What is the difference between cysticercosis and Cysticercus?
Cysticercosis is an infection with the larval stage of the pork tapeworm, Taenia solium. This occurs when a person eats the microscopic (tiny) eggs of the tapeworm. The eggs hatch in the small intestine and migrate to muscles, organs, or other tissue and form cysts known as cysticerci.
Which class of fungi produce Sporangiospores?
Sporangiospores are produced by fungi of the Chytridiomycetes and Zygomycetes groups, as well the Oomycetes, a group of fungi that is phylogenetically unrelated to the true fungi. The sexual propagation of the fungi that produce sporangiospores occurs via the zygospore.
Which of the following is an endogenously produced asexual spore?
Conidia are the asexual spores produced endogenously on conidiophores.
In which fungi Meiospores are endogenously produced?
A : Sexual spores in pink mould are meiospores produced endogenously.
What type of organism produces domoic acid?
Domoic acid is a marine biotoxin toxin called Amnesic Shellfish Poison (ASP) which is produced by the diatom Pseudo-nitzschia sp., a type of naturally occurring microscopic algae. Shellfish eat these algae and can retain the toxin.
Which of the following groups of algae produce domoic acid compounds that are neuro toxic to humans?
Domoic Acid (DA), the cause of Amnesic Shellfish Poisoning, is a naturally occurring marine biotoxin that is usually, but not always, produced by the microscopic algae Pseudo-nitzschia (see figure 1) [58].
What produces microcystin?
Microcystins are produced by the strains of several genera of cyanobacteria, for example, Anabaena, Hapalosiphon, Microcystis, Nostoc, Planktothrix, and Phormidium. It is also well known that some strains of the same species produce microcystins, while some do not.
Where does microcystin come from?
A: Microcystin is a toxin that is released by some species of blue-green algae, or cyanobacteria.
What is another name for a fungus with fungus like spores?
Candida albicans. Multinucleated amoebalike cells that produce funguslike spores. a. Ascomycete b. Cellular slime mold d. Tapeworm
Which phylum of fungi produces asexual spores?
Anamorph – produces asexual spores e. Deuteromycota – a phylum of fungi e. Deuteromycota – a phylum of fungi Which of the following is NOT a characteristic of parasitic platyhelminths?
What is the function of spores in fungi?
Fungal spores are resting spores to protect the fungus from adverse environmental conditions. e. Fungal spores are for reproduction. d. Fungal spores are resting spores to protect the fungus from adverse environmental conditions.