Termite Nests: Protozoa Termites Relationship
Between animals and microorganisms, this is the earliest example ever discovered of "mutualism," which is one type of symbiotic relationship in. identify three mutually symbiotic relationships involving a microbe and another microbe, an animal or a plant. . Interestingly, some of the protozoa living within the termite have .. SYMBIOSIS OBSERVATION STATIONS WORKSHEET. Name. symbionts, termites would be unable to digest wood. When both species benefit, the relationship is called Protists are one type of microbe observed in the.
Pieces of wood enters the mouth. Wood is ground in the crop.
Wood particles enters the hind gut and are consumed by the protozoans, who release acetate, carbon dioxide, hydrogen, and methane. Acetate release by protozoa is absorbed by the termite 5. They are the largest group of insects adapted to feed on wood and dry plant matter.
Termites and Protozoa by Karen Williams on Prezi
Termites perform a very important ecological function by decomposing breaking down cellulose main component in plant cell walls materials in natural forest settings.
Without decomposers, such as termites, dead plant materials would pile up and it would take much longer for needed nutrients to be recycled back into the soil for use by other living plants. Overtime, this would result in infertile soil unable to support a healthy plant community, and a healthy plant community is the backbone of a diverse forest ecosystem. Termites are also an important food source for many amphibians, reptiles and birds, who help to keep the termite population in control.
Predators attack the termites during swarming when they are exposed and easy to catch. In some parts of the world they are the main food source for specialized mammals that use modified mouths to burrow into termite colonies.
Producer 9 Extracting Protozoa from Termite Gut: Materials Formosan Subterranean Termites workers 2 Forceps 1 Light microscope 1Microscope slide 1 Cover slip 2 drops of saline solution 1 disposable pipette Kimwipes Slides 9 through 15 describes the laboratory procedure for removing the termite gut. You will see another example of cellulose-digesting symbionts later in this exercise.
Think about the symbiotic relationship s between termites and microorganisms, then answer question 6 on your work sheet. Intracellular and extracellular digestion Intracellular and extracellular digestion are somewhat self-explanatory terms: For digestion to take place inside a cell, food particles must first be taken into the cell.
The following video shows food being taken into Paramecium multimicronucleatum, a single-celled protist, and incorporated into food vacuoles where it will be digested.
Video of vacuole formation Now study the following images to view digestion taking place within the food vacuoles of Paramecium multimicronucleatum. The food source, yeast cells, have been stained with congo red, a dye that changes to a dark blue color as acid is secreted into the vacuole.
Digestion within the food vacuoles of a paramecium A. Individual yeast cells can be discerned within food vacuoles. As digestion proceeds, material in the food vacuoles becomes less distinct and color begins to change.
After 20 minutes many of the food vacuoles appear empty and the contents of those containing material appear dark. Extracellular digestion in animals occurs within a cavity where the food is exposed to digestive enzymes.
Termite Feeding and the Protozoa
A simple digestive cavity, with only one opening to the exterior, is found in animals of Phylum Cnidaria. The following video shows an animal from this phylum, hydra, capturing prey and moving it into the digestive cavity. Prey is captured by stinging cells concentrated in the hydra's tentacles. Proteins from the prey stimulate the hydra to open its mouth and move the rest of the tentacles towards the captured object.
The tentacles move the prey into the mouth opening into the digestive cavity. Enzymes are secreted by specialized cells that line the cavity. These enzymes begin to break down the food into smaller particles.
Thus,extracellular digestion enables the hydra to eat relatively large prey in comparison to its size.
Another type of cell lining the cavity then engulfs the small food particles. Digestion is completed in food vacuoles within these cells intracellular digestion and the products are transported to the rest of the body. Undigested food is passed out of the cells into the gut cavity and are expelled through the mouth.