anyone give me answer of these question plzz for exam i will mark u as brainlieast PLZZ
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17 Mitochondria is called the powerhouse of cell. They are so called because they carry out the process of aerobic respiration and generate the energy molecules (ATP or adenosine Triphosphate) for cell operation.
19 . nitrogenase enzyme is found in root nodules for n2 fixation and leghaemoglobin is the pink pigment present it protects the the root from oxygen and maintains the anaerobic enviornment
20. While there are hundreds of different proteins throughout the cell, only two types are found associated with facilitated diffusion: channel proteins and carrier proteins. Channel proteins typically are used to transport ions in and out of the cell. Channel proteins come in two forms, open channels and gated channel
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