Question

leaves are always grown at a....

Answer 1

internodes
I think that's what you need. the question isn't really accurate

Answer 2

leaves are always grown at a positive phototropism

• Phototropism is the growth of an organism which responds to a light stimulus.
• It is most often observed in plants, but can also occur in other organisms such as fungi.
• The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs.
• This causes the plant to have elongated cells on the farthest side from the light. Phototropism is one of the many plant tropisms or movements which respond to external stimuli.
• Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism (skototropism)
• . Most plant shoots exhibit positive phototropism, and rearrange their chloroplasts in the leaves to maximize photosynthetic energy and promote growth.
• Roots usually exhibit negative phototropism, although gravitropism may play a larger role in root behavior and growth.
• Some vine shoot tips exhibit negative phototropism, which allows them to grow towards dark, solid objects and climb them.
• The combination of phototropism and gravitropism allow plants to grow in the correct direction.