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Tissues Derived From Eukaryotic Cells (2A) Practice Test
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Q1
A lab studied the retina using two preparations: (i) an intact layered retinal slice and (ii) a dissociated mixture of the same retinal cells. In the slice, a light flash produced a consistent, time-locked electrical response recorded at the output layer; in the dissociated mixture, responses were variable and poorly time-locked. The retinal slice was defined as preserving the native laminar arrangement of cell bodies and synaptic layers. Which statement best explains the role of tissue organization in this functional difference?
A lab studied the retina using two preparations: (i) an intact layered retinal slice and (ii) a dissociated mixture of the same retinal cells. In the slice, a light flash produced a consistent, time-locked electrical response recorded at the output layer; in the dissociated mixture, responses were variable and poorly time-locked. The retinal slice was defined as preserving the native laminar arrangement of cell bodies and synaptic layers. Which statement best explains the role of tissue organization in this functional difference?