5.4 is the plane of division during fission along the longitudinal or the transverse axis? 5.5 why is…

5.4 is the plane of division during fission along the longitudinal or the transverse axis? 5.5 why is conjugation considered a form of sexual reproduction? 5.6 what evolutionary benefit does conjugation provide that fission does not? vorticella next you will examine vorticella, a sessile, stalked ciliate commonly found in stagnant bodies of freshwater. vorticella typically remains attached to aquatic vegetation by a contractile stalk and possesses a funnel - shaped cell body with a ring of cilia around the larger peristome (open end). a contractile body permits vorticella to push its cell body farther away from both the substrate and neighboring individuals to compete for food. the cilia beat rapidly to create currents that pull food particles into the peristome, where they are channeled to the buccal cavity for digestion. procedure 1 prepare a wet mount from a culture of living vorticella, add a coverslip, and examine under medium or high power (fig. 6.12). 2 closing the iris diaphragm and adjusting the condenser on your microscope to increase image contrast usually improves observation of these small, transparent organisms. do the cilia surrounding the peristome of vorticella beat in random fashion or in coordinated waves? 3 while viewing a specimen that is fully extended through the microscope, have your lab partner tap once or twice gently on the coverslip with a dissecting needle and describe the organisms response.

5.4 is the plane of division during fission along the longitudinal or the transverse axis? 5.5 why is conjugation considered a form of sexual reproduction? 5.6 what evolutionary benefit does conjugation provide that fission does not? vorticella next you will examine vorticella, a sessile, stalked ciliate commonly found in stagnant bodies of freshwater. vorticella typically remains attached to aquatic vegetation by a contractile stalk and possesses a funnel - shaped cell body with a ring of cilia around the larger peristome (open end). a contractile body permits vorticella to push its cell body farther away from both the substrate and neighboring individuals to compete for food. the cilia beat rapidly to create currents that pull food particles into the peristome, where they are channeled to the buccal cavity for digestion. procedure 1 prepare a wet mount from a culture of living vorticella, add a coverslip, and examine under medium or high power (fig. 6.12). 2 closing the iris diaphragm and adjusting the condenser on your microscope to increase image contrast usually improves observation of these small, transparent organisms. do the cilia surrounding the peristome of vorticella beat in random fashion or in coordinated waves? 3 while viewing a specimen that is fully extended through the microscope, have your lab partner tap once or twice gently on the coverslip with a dissecting needle and describe the organisms response.

Answer

Brief Explanations:

5.4: In Vorticella, fission occurs along the transverse axis. 5.5: Conjugation is considered sexual reproduction as it involves the exchange of genetic material between two individuals. 5.6: Conjugation provides genetic variation through genetic - material exchange, which fission (asexual reproduction) does not. For the cilia question, the cilia surrounding the peristome of Vorticella beat in coordinated waves to create currents for food capture. When the coverslip is tapped, the contractile stalk of Vorticella contracts, pulling the cell body closer.

Answer:

5.4: Transverse axis. 5.5: Involves genetic - material exchange between two individuals. 5.6: Provides genetic variation. Cilia: Beat in coordinated waves. Response to coverslip tap: Contractile stalk contracts, pulling cell body closer.