The image below shows a lightreceptor cell. What is A? Enter your answer A B

A is the outer segment of the photoreceptor cell. It is the part of the cell that contains the photopigments, which are molecules that absorb light and initiate the process of phototransduction. The outer segment has a cylindrical shape in rod cells and a conical shape in cone cells. The outer segment is connected to the inner segment by a connecting cilium, which allows the transport of materials between the two segments. The outer segment (A) of a photoreceptor cell plays a crucial role in visual transduction, housing photopigments that absorb light and initiate phototransduction. In rod cells, the outer segment takes on a cylindrical form, while in cone cells, it adopts a conical shape. This structural variation reflects the specialized functions of rod and cone cells in low-light and color vision, respectively. The connecting cilium facilitates the exchange of materials between the outer and inner segments, ensuring the proper functioning of the photoreceptor cell.

Answer: outer segment of the photo receptor cell. Explanation: A is the outer segment of the photo receptor cell. It is the part of the cell that contains the photo pigments, which are molecules that absorb light and initiate the process of photo transduction. The outer segment has a cylindrical shape in rod cells and a conical shape in cone cells. The outer segment is connected to the inner segment by a connecting cilium, which allows the transport of materials between the two segments. The outer segment (A) of a photo receptor cell plays a crucial role in visual transduction, housing phototropism that absorb light and initiate photo transduction. In rod cells, the outer segment takes on a cylindrical form, while in cone cells, it adopts a conical shape. This structural variation reflects the specialised functions of rod and cone cells in low-light and colour vision, respectively. The connecting cilium facilitates the exchange of materials between the outer and inner segments, ensuring the proper functioning of the photo receptor cell.