Transcript
Hypothesize in what type of environments it would be advantageous for a protist to be autotrophic, heterotrophic, or mixotrophic. Protists thrive and grow in wet and moist environments, they adapt and prefer to live in these types of environments because the water allows them to travel easier since they have flagella and cilia. Many algae are photosynthetic, like plants. Why then are they not classified as such? Algae are protists and therefore most are unicellular, however some can be multicellular. Unlike plants, because the algae are protists they do not have stems, leaves, or roots like those classified within the Plantae kingdom. Some protists are colony forming. Hypothesize why this may be an advantage or disadvantage. This may be more of an advantage because of the development of Darwin’s Theory of Evolution, there is a higher success rate in the colony forming protist. Experiment 1: Viewing Preserved Species of Protists Post-Lab Questions Draw each organism from Figures 6 and 7 in the space provided below and label the major structures. (Drew all important structures even though not seen) Answer the following questions: What type of locomotion do you think each protist employs? Figure 6: Flagellum Figure 7: Cilia What advantage do you think a protist would gain by having a unicellular, filamentous, or colonial form? A unicellular protist would be able to quickly asexually reproduce and benefit from a simple body system that doesn’t require specialization. A filamentous protist is able to adapt to all types of environments and gain nutrients throughout these environments. An advantage to colonial form would be better for finding food, better living environment, and it also acts as a defense against predators. Experiment 2: Viewing Live Specimens Post-Lab Questions In the space provided below, draw the various members of the protist kingdom that you were able to observe. Next to each drawing, describe the speed and type of locomotion you observed. Type of locomotion was cilia, and comparatively with the other protist in the video it was slower. Type of locomotion was flagellum, and comparatively with the other protists in the video it was much faster. Did you notice a difference in the protists when the slowing agent was used? Which members were you able to see more clearly? Were there species that were still moving too fast to see clearly? Could you identify any species specifically? Do any of them look similar to specimens you observed in the first lab? When the slowing agent was used it was easier to see the differences in internal structure between the different protists. The paramecium was easier to see compared to the other protist, which even with the slowing agent moved a little too fast to see fully. The paramecium was easy to name, but it took looking at pictures and comparing from experiment one to come up with a possible answer: euglena. Both were used in the first lab, which was why it was easier to spot differences internally, as I already knew what the locomotion type was due to the earlier experiment.
