They make their own food and containchlorophyll. Like plants, they carry out photosynthesis B. They do not have chlorophyll so theyaren't able to make their own food like plant-like protists. Each haploid cell has half the chromosome number of the parent cell. For each one of the following statements, determine whether it is true or false.
A It relies on photosystems that float freely in its cytosol. Answer yes or no and give a reason why. The plasmodial slime molds spend most of their lives as individual cells, but when a chemical signal is released, they form a cluster that acts as one organism. D The insects develop resistance to the microorganisms. The macronucleus divides into four micronuclei with each new cell receiving two micronuclei each.
Fungi are more like animals because they have to obtain their food from outside sources. It allows scientists to prevent meiosis and the duplication of genes necessary for the survival of the pathogen. The adaptive significance of sexual reproduction is that it: A. Protists usually reproduce asexually, which is by cell division. Protists cannot cause infections, bacteria can C.
Plant-like protists live in soil, in seawater, on the outer covering of plants, and in ponds and lakes Figure. Chemicals from other kinds of algae are used to produce many kinds of plastics. You find a protist that is a heterotroph and lives in the ocean. These fungi feed on the outer layer of warm, moist skin. They all havemembrane-bound organelles and are known to have endosymbioticorigin. Roles of Fungi Fungi are found all over the globe in many different kinds of habitats. Flagella rotate in a propeller-like fashion.
Fungi are all around us and are useful in many ways. Both protists and fungi are eukaryotic. Fungi are Good Eaters Fungi can grow fast because they are such good eaters. They are relatively complex cells. When that happens, the organism that benefits and is not harmed is called a parasite.
For her hours of labor, Sharo. Fungus-like protists usually do not move, but some develop movement at some point in their lives. Review Protists 1 Protists are alike in that all are 2 All of the following groups had taxonomic significance in the past, but only one is now considered to be a diverse clade. Fungi cannot eat or engulf food c. List two ways that protists obtain food. These pigments are waste products stored in the tissues.
Others are brown or white. All fungi have negative impacts on living things. Fungi are found only in soil d. B Animals, plants, and fungi arose from different protistan ancestors. See different types of fungi here:. Since then much of the species has been eliminated. C All apicomplexans are autotrophic.
The things that you are seeing are really mycelia. B The primary organism that transmits malaria to humans by its bite is the tsetse fly. Their 53 Which taxonomic group containing eukaryotic organisms is thought to be directly ancestral to the plant kingdom? The macronuclei fuse with the micronuclei and then divide into two with each new cell receiving an identical fused nucleus. In the soil, fungi grow closely around the roots of plants, and they begin to help each other. Has a physician ever prescribed an antibiotic for you? Asexual reproduction is faster and produces more fungi than sexual reproduction. What system would be best to use? E Euglenozoans that are mixotrophic lack functional chloroplasts. We have to be discerning in regards to the information that we hear and see.
Protists are alike in that all are eukaryotic. Assuming that a flagellum containing a crystalline rod cannot undulate back and forth, and assuming that two undulatory flagella can produce more effective locomotion than can a single flagellum, which of these organisms should have the least effective locomotion? Remember, a diploid cell is a cell with two sets of chromosomes, one from each parent. What structure is missing in the fungal hypae shown on the right side of Figure 21-5? A lichen is really two organisms that live very closely together: a fungus and a bacteria or algae. Like animals, they can move, and they they get their carbon from outside sources. Although scientists used to think that fungi were plants, we now know that plants and fungi are separate. They attach to host cells by small hooks. That is, all protists have cells with nuclei.
While the majority of answers on WikiAnswers are accurate, there are some answers posted that are not, as well as answers that have been vandalized. Even among themselves, they have very little in common. Other protists are parasitic and absorb nutrients meant for their host, harming the host in the process. They look like cobwebs and can be sticky. B It must have gained extra mitochondria when it lost its plastids. I so hate these assignments as I have such a hard time.