The molecules doesn't need energy to cross through.
The diffusion doesn't need protien, the molecules pass between phospholipids by passes protien. It moves smaller molecules. Facilitated need protien also hormone, and larger molecules.
I wish it makes sense.
Volumes.
If you put equivalent volumes in a bag, where both weigh the same, the density might get equal.
Hope it helped,
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Answer: Algae use photosynthesis to convert CO2 and sunlight into sugars and then convert some of the sugars into oil, which can be harvested and converted to biodiesel. 4) 30x more oil per hectare than other plants used for biodiesel such as soybean, oil palms, and rapeseed.
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Glycolysis requires an investment of 2 ATP, but it yields a total of 4 ATP, netting 2 ATP. So more ATP is produced than is used.