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Living, Protists
47
Animals and Zoology—Living, Protists, continued Culture Media
See pages 56–59.
Paramecium Giant Microbe® See page 206.
Protists, Pseudopods
Unicellular organisms characterized by movement using pseudopods, which act in both locomotion and feeding behaviors (phagocytosis). Internal organelles are easily visible using a compound microscope with a 40x objective. These slow movers are easy for students to follow and observe organelles and behavior. A. proteus contains a single nucleus. C. carolinesis is multinucleate. A. proteus vital stained are living proteus that have been stained for easier observation. Pseudopods prefer stagnant water, room temperature, dim light or darkness and tend to move away from a microscope’s field of view. Culture contains enough live food to last several days. Aerate daily using included pipet.
Amoeba proteus
LM1062, etc.
Catalog No.
Description
Class Size
Price/Each
LM1062
Amoeba proteus. Common in freshwater lakes, ponds and slow-moving streams. Popular for the study of basic animal cell structure, major organelles and the process of phagocytosis. Single nucleus.
30
$ 8.65
LM1063
100
25.65
LM1174
Amoeba proteus—Vital Stained. Prestained living culture. Easy to locate and ready for microscopic examination.
30
9.20
LM1064
Chaos carolinensis. The giant amoeba, also known as Chaos chaos. Visible to the naked eye, it is readily observable under low magnification. Multinucleate.
30
9.25
LM1065
100
25.05
Amoeba Giant Microbe® See page 206.
Protists, Flagellates
Unicellular organisms characterized by movement using one or more flagella. Flagella act in locomotion. Below flagellates are all photosyn- thetic species with red eyespots. Internal organelles are easily visible using a compound microscope with a 40x objective. Flagellates prefer calm, room temperature water. Culture contains enough live food to last several days. Aerate daily using included pipet.
Euglena
LM1039, etc.
Catalog No.
Description
Class Size
Price/Each
LM1039
Euglena. Extremely active organism moves by means of single flagellum. Popular for behavioral studies involving responses to light, temperature and pH (taxes). Also used for vitamin B12 assay.
30
$ 8.65
LM1040
100
25.65
LM1254
Chilomonas, Biflagellate
30
8.75
LM1041
Chlamydomonas. Unicellular, biflagellate organism.
30
8.65
LM1042
100
25.65
LM1251
Peridinium, Dinoflagellate
30
8.85
LM1055
Volvox. Large, photactic colonies of Chlamydomonas-like cells surrounded by a common gelatinous matrix. Reproduces asexually via the development of daughter colonies within the hollow sphere
of the parent colony.
30
8.65
LM1056
100
25.65
Find Those
Elusive Organisms
Some live cultures are not immediately visible upon first glance at the shipping container. Organisms do not evenly distribute themselves throughout the culture medium. So a random sample from the container may turn up nothing but water! Some cultures tend to attach themselves to the bottom or sides of the jar. Amoeba will typically attach to the bottom of the jar. Stentor, Vorticella and Hydra attach to the sides and bottoms of the jars and on substrate. Place the culture container on a dimly lit stereo- scope or under a strong magnifier for a closer look. They may be hard to see, but they are almost certainly there.
See free video at flinnsci.com.
ANIMALS AND ZOOLOGY—LIVING, PROTISTS continued on next page.
© T.E. AdAms/VisuAls unlimiTEd