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Part B: Observation of Prokaryotic Cells Because of the small size of prokaryotic cells, your observation will focus on distinguishing between cell shape and cell arrangement. Together, appearance and arrangement are used to characterize bacteria. Bacteria have three basic shapes (Figure 7.1): cocci (spherical), bacilli (rod), spirilla (spiral). Bacteria can also be differentiated based on their cell arrangement (Figure 7.1): diplo (pairs), strepto (chains), staphylo (clusters). Activity 2: Observe Prokaryotic Cell Specimen Refer to each photo and answer the question using the information provided in Figure 7.1 and Table 7.2 Domain= Coccus single chain pair tetrad 8 8 8 Bacillus single fusiform chain Spirillum Specimen = What identifying characteristics of this organ- ism helped you to determine its specimen's name? Domain= Specimen name= What identifying characteristics of this or- ganism helped you to determine its speci- men's name? CHayden-McNeil, LLC Domain= Figure 7.1. Bacterial cell shape and arrangement. Table 7.2. Prokaryotic cell specimens. Domain Groups Specimen Bacteria Cyanobacterium Anabaena Bacteria Bacterium Bacteria Bacterium Bacteria Bacillus megaterium Micrococcus luteus Rhodospirillum Identifying Characteristics unicellular, bead-like cells, filamentous, no nucleus or organelles unicellular, rod-shaped cells, no nucleus or organelles unicellular, spherical-shaped, no nucleus or organelles unicellular spiral-shaped Specimen name= What identifying characteristics of this or- ganism helped you to determine its speci- men's name? Figure 7.2. Identify this specimen. Figure 7.3. Identify this specimen. Figure 7.4. Identify this specimen.

Part B: Observation of Prokaryotic Cells Because of the small size of prokaryotic cells, your observation will focus on distinguishing between cell shape and cell arrangement. Together, appearance and arrangement are used to characterize bacteria. Bacteria have three basic shapes (Figure 7.1): cocci (spherical), bacilli (rod), spirilla (spiral). Bacteria can also be differentiated based on their cell arrangement (Figure 7.1): diplo (pairs), strepto (chains), staphylo (clusters). Activity 2: Observe Prokaryotic Cell Specimen Refer to each photo and answer the question using the information provided in Figure 7.1 and Table 7.2 Domain= Coccus single chain pair tetrad 8 8 8 Bacillus single fusiform chain Spirillum Specimen = What identifying characteristics of this organ- ism helped you to determine its specimen's name? Domain= Specimen name= What identifying characteristics of this or- ganism helped you to determine its speci- men's name? CHayden-McNeil, LLC Domain= Figure 7.1. Bacterial cell shape and arrangement. Table 7.2. Prokaryotic cell specimens. Domain Groups Specimen Bacteria Cyanobacterium Anabaena Bacteria Bacterium Bacteria Bacterium Bacteria Bacillus megaterium Micrococcus luteus Rhodospirillum Identifying Characteristics unicellular, bead-like cells, filamentous, no nucleus or organelles unicellular, rod-shaped cells, no nucleus or organelles unicellular, spherical-shaped, no nucleus or organelles unicellular spiral-shaped Specimen name= What identifying characteristics of this or- ganism helped you to determine its speci- men's name? Figure 7.2. Identify this specimen. Figure 7.3. Identify this specimen. Figure 7.4. Identify this specimen.

Biology 2e
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter22: Prokaryotes: Bacteria And Archaea
Section: Chapter Questions
Problem 8RQ: Many of the first prokaryotes to be cultured in a scientific lab were human or animal pathogens. Why...
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Part B: Observation of Prokaryotic Cells Because of the small size of prokaryotic cells, your observation will focus on distinguishing between cell shape and cell arrangement. Together, appearance and arrangement are used to characterize bacteria. Bacteria have three basic shapes (Figure 7.1): cocci (spherical), bacilli (rod), spirilla (spiral). Bacteria can also be differentiated based on their cell arrangement (Figure 7.1): diplo (pairs), strepto (chains), staphylo (clusters). Activity 2: Observe Prokaryotic Cell Specimen Refer to each photo and answer the question using the information provided in Figure 7.1 and Table 7.2 Domain= Coccus single chain pair tetrad 8 8 8 Bacillus single fusiform chain Spirillum Specimen = What identifying characteristics of this organ- ism helped you to determine its specimen's name? Domain= Specimen name= What identifying characteristics of this or- ganism helped you to determine its speci- men's name? CHayden-McNeil, LLC Domain= Figure 7.1. Bacterial cell shape and arrangement. Table 7.2. Prokaryotic cell specimens. Domain Groups Specimen Bacteria Cyanobacterium Anabaena Bacteria Bacterium Bacteria Bacterium Bacteria Bacillus megaterium Micrococcus luteus Rhodospirillum Identifying Characteristics unicellular, bead-like cells, filamentous, no nucleus or organelles unicellular, rod-shaped cells, no nucleus or organelles unicellular, spherical-shaped, no nucleus or organelles unicellular spiral-shaped Specimen name= What identifying characteristics of this or- ganism helped you to determine its speci- men's name? Figure 7.2. Identify this specimen. Figure 7.3. Identify this specimen. Figure 7.4. Identify this specimen.
Transcribed Image Text:Part B: Observation of Prokaryotic Cells Because of the small size of prokaryotic cells, your observation will focus on distinguishing between cell shape and cell arrangement. Together, appearance and arrangement are used to characterize bacteria. Bacteria have three basic shapes (Figure 7.1): cocci (spherical), bacilli (rod), spirilla (spiral). Bacteria can also be differentiated based on their cell arrangement (Figure 7.1): diplo (pairs), strepto (chains), staphylo (clusters). Activity 2: Observe Prokaryotic Cell Specimen Refer to each photo and answer the question using the information provided in Figure 7.1 and Table 7.2 Domain= Coccus single chain pair tetrad 8 8 8 Bacillus single fusiform chain Spirillum Specimen = What identifying characteristics of this organ- ism helped you to determine its specimen's name? Domain= Specimen name= What identifying characteristics of this or- ganism helped you to determine its speci- men's name? CHayden-McNeil, LLC Domain= Figure 7.1. Bacterial cell shape and arrangement. Table 7.2. Prokaryotic cell specimens. Domain Groups Specimen Bacteria Cyanobacterium Anabaena Bacteria Bacterium Bacteria Bacterium Bacteria Bacillus megaterium Micrococcus luteus Rhodospirillum Identifying Characteristics unicellular, bead-like cells, filamentous, no nucleus or organelles unicellular, rod-shaped cells, no nucleus or organelles unicellular, spherical-shaped, no nucleus or organelles unicellular spiral-shaped Specimen name= What identifying characteristics of this or- ganism helped you to determine its speci- men's name? Figure 7.2. Identify this specimen. Figure 7.3. Identify this specimen. Figure 7.4. Identify this specimen.
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