DENDROLOGY

Detailed explanation-1: -The plants shoot or stem shows growth in the direction of sunlight depicting a positive phototropism. The movement of a plant part in response to light is called phototropism.

Detailed explanation-2: -Auxin responds negatively to light, meaning it stays in higher concentrations in the shaded side of a plant. compared to the lit side This means that the shoot grows longer on the shaded side, causing it to bend the plant towards the light. This process is called positive phototropism.

Detailed explanation-3: -Phototropism is the ability of the plant to re-orient the shoot growth towards a direction of light source. Phototropism is important to plants as it enhances the ability of plants to optimize their photosynthetic capacity. As discussed above, phototropic response is exclusively controlled by phots.