Nitrogen-fixing bacteria provide which plants can absorb. nitrogen gas
soluble nitrates
glucose
oxygen

The component that nitrogen-fixing bacteria provide and that plants can absorb is soluble nitrates. Since plants cannot directly use nitrogen gas, it must be converted into its soluble form. Plants cannot do this either, but nitrogen-fixing bacteria can. These bacteria convert nitrogen gas into soluble nitrates, such as ammonium, which plants can absorb.

The diaphragm is what i think ur talking about