What is referred to as the front portion of the wing?

The leading edge is the correct term for the front portion of the wing. In aerodynamics, the leading edge plays a critical role in airflow management over the wing's surface. It is the first part of the wing that interacts with the oncoming air as an aircraft moves forward. The design of the leading edge is essential for maintaining optimal lift and enhancing the aircraft's overall performance.

In contrast, the trailing edge refers to the back portion of the wing, where the air flows off after moving over the wing's surface. The aileron is a control surface located near the trailing edge, responsible for controlling the roll of the aircraft. Flaps, also located on the wing, are movable surfaces used to increase lift during takeoff and landing, significantly affecting the wing's aerodynamics at different speeds.