Question

What are two defect of simple cell?​

Answer 1

It is unclear what is meant by "simple cell," as it could refer to different things depending on the context. However, here are two possible defects of a simple cell in different contexts:

• In biology, a simple cell could refer to a prokaryotic cell, which is a type of cell that lacks a nucleus and other membrane-bound organelles. One defect of prokaryotic cells is that they have limited capacity for growth and specialization compared to eukaryotic cells, which have a nucleus and more complex internal structures. This makes it harder for prokaryotic cells to perform advanced functions such as cell signaling, differentiation, and gene regulation.

• In electronics, a simple cell could refer to a single electrochemical cell that generates a voltage difference between two electrodes by means of a redox reaction. One defect of a simple cell is that it has a limited lifespan and will eventually run out of reactants or lose its ability to produce a stable voltage due to corrosion or other factors. Moreover, the voltage produced by a simple cell is typically small and may not be sufficient for powering complex electronic devices or systems.

Answer 2

Simple cells are neurons in the visual cortex of the brain that are responsible for detecting edges and bars of light in specific orientations. Here are two potential limitations or defects of simple cells:

Limited sensitivity to complex visual stimuli: Simple cells are designed to detect simple features, such as edges and bars of light. While they are good at detecting these features in specific orientations, they are not very sensitive to more complex visual stimuli, such as faces, objects, or scenes. For this reason, more complex cells (also known as complex cells or hypercomplex cells) are needed to process more complex visual information.

Fixed orientation tuning: Simple cells are sensitive to edges and bars of light in specific orientations, but they are not very good at detecting these features in other orientations. This means that they have a fixed "orientation tuning" that limits their ability to detect edges and bars that are tilted or angled in different ways. Complex cells, which have a more flexible orientation tuning, can overcome this limitation to some extent, but they also have their own limitations.