Short answer - to breathe.
Long answer - the black streaks on the trunk of birch trees are called lenticels, and their function is to enable the exchange of gases between the tree and the air. So, in a way, this makes the whole process of photosynthesis a lot easier for birch trees.
I would say true because for them life will not go on and the animal that is eating another animal there will not be no more of them and they will all die off
A) bacteria. Membrane-bound organelles are found in eukaryotic cells. However, bacteria are prokaryotic, meaning that they do not have membrane bound organelles.
Answer:
Passes absorbed energy to chlorophyll A.
Explanation:
Chlorophyll is a pigment found on the chloroplasts, it absorbs and reflects light's fotons in order to fuel the photosynthesis process where plants convert light into energy. There are two types of chlorophill:
- <em>Chlorophyll A:</em> a blue/green substance that is always necessary for photosyntesys, it absorbs light from red to blue areas and it acts as a primary electron donor in the electron transport chain.
- <em>Chlorophyll B: </em>a yellow/green substance that absorbs only blue light, it serves as an extension for the plant to absorb a broader range of light. <em>The extra energy absorbed by this clorophyll is then tranfered to chlorophyll A</em>.
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