What is differences between entamoeba coli and entamoeba histolytica?
Entamoeba coli is a non-pathogenic amoeba commonly found in the human intestine and does not usually cause symptoms. Entamoeba histolytica is a pathogenic amoeba that can cause amoebic dysentery and other intestinal infections in humans. E. histolytica can invade the intestinal wall and cause more severe symptoms compared to E. coli.
What is the structure motility in Amoeba?
Amoeba moves by extending pseudopods, which are temporary projections of the cell membrane and cytoplasm. These pseudopods are formed when the cytoplasm flows in the direction of movement. This structure allows Amoeba to exhibit an adaptable and flexible form of motility.
Why do you use cotton on a paramecium slide?
Cotton can be used to secure the coverslip on a paramecium slide to prevent movement and provide a flat surface for observation under a microscope. Additionally, the cotton helps to create a moist chamber that maintains the organism's environment and prevents dehydration during observation.
What type of microscope do you use on a amoeba?
A compound light microscope is typically used to observe amoebas due to their small size. This type of microscope allows for higher magnification and resolution, making it easier to study the intricate details of amoebas.
What are some special facts about euglena?
The euglena acts like a plant and an animal making it a unique organism. Euglena are single celled flagellate algae that can be found in the water, mud and sand of ponds and puddles. Although they contain chlorophyll, Euglena cannot survive solely by photosynthesis. Euglena vary in shape from cylindrical to oval, with flagella that are shorter than their bodies. They range in size from 35-45um and may be green or reddish in color.
Is a paramecium a phytoplankton?
No, a paramecium is not a phytoplankton. Paramecium is a single-celled organism classified as a protist, while phytoplankton are a diverse group of microscopic photosynthetic organisms that include algae and cyanobacteria. Phytoplankton play a crucial role in marine ecosystems by serving as the base of the food chain through photosynthesis.
Where did the amoeba's name come from and why was it given that name?
The name "amoeba" comes from the Greek word "amoibe," which means "change." The name was given to these single-celled organisms because of their ability to change their shape constantly as they move and feed.
Unlike most cells which are usually very clear and dont really have a color, volvox is a green shade; since, it is in the "green algae" group of the "protists".
No one can be predator of Volvox as it is alga.Animals which eat algae or plants are called grazers.
How are paramecium different than most other protozoans?
Paramecium have cilia for movement and feeding which sets them apart from other protozoans. They also typically have complex, differentiated cell structures compared to many other protozoans. Additionally, paramecium are unique in their ability to reproduce both sexually and asexually.
Is paramecium a holozoic organism?
Yes, paramecium is a holozoic organism because it ingests whole food particles through its oral groove by phagocytosis for nutrition.
Which term best describes the symbiotic relationship of well-fed P bursaria to their zoochlorellae?
Mutuallistic describes the relationship between a well fed P.bursaria and zoochlorellae.
Plasmodium effects the mosquito or not?
Yes, Plasmodium does affect mosquitoes. It infects and multiplies within the mosquito's gut before moving to its salivary glands, where it can be transmitted to humans when the mosquito bites.
Why is volvox considered a protist rather than a metazoan animal?
Volvox is considered a protist because it is a colony of individual cells working together as a single organism. Each cell within the colony retains its own identity and functions, unlike in metazoan animals where cells are specialized and cannot survive independently. Additionally, Volvox lacks the complex tissue organization and body plan characteristic of metazoans.
When a pond dries up from drought how do the amoebas protect themselves?
Amoebas can form a protective cyst around themselves when faced with unfavorable conditions like drying up of their habitat due to drought. This cyst helps them survive in a dormant state until more favorable conditions return, at which point they can emerge and resume their normal activities.
Yes, paramecium is a unicellular organism. It is a type of protozoa that falls under the group of single-celled eukaryotes and is commonly found in freshwater environments.
It is more vulnerable to extinction due to lack of genetic variation.
Are paramecium asexual reproduction?
Yes, paramecium primarily reproduce asexually through binary fission, where the cell divides into two identical daughter cells. They can also exchange genetic material through a process called conjugation, but this is not a reproductive method.
No, paramecium are not autotrophs. They are heterotrophic organisms, meaning they obtain their nutrients by ingesting organic matter such as bacteria and algae. Autotrophs, on the other hand, are organisms that can produce their own food through processes like photosynthesis.
Yes, radiolarians are protozoans. They are single-celled organisms belonging to the phylum Actinopoda and are known for their intricate mineral skeletons made of silica.
Is amoeba a prokaryote or eukaryote cell and why?
Amoebas are a genus of the Protozoa. They are unicellular, eukaryotic microorganisms, which have one or more nuclei and a contractile vacuole for the purpose of maintaining osmotic equilibrium. They obtain food through phagocytosis, making them heterotrophs. The defining characteristic that makes them eukaryotic, is their membrane-bounded nuclei, which houses they deoxyribonucleic acid.
What are medical uses of volvox?
Volvox organisms are not typically used for medical purposes. They are more commonly studied for their role in biology, as model organisms for understanding complex biological processes such as group behavior and evolution.
Yes, contaminated drinking water is a common cause of amoebic dysentery and infections from protists like Entamoeba. These organisms are often present in water sources contaminated with fecal matter, and if ingested, can cause illness in humans. Proper water treatment and sanitation measures are crucial for preventing such infections.