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I have 2 statements , and i am not sure, whether they are true or false.

  1. Proteins like albumin and haemoglobin are insoluble in water

(in my view , almost all proteins are soluble- so this is a wrong statement)

  1. Proteins which are soluble in water have complex 3D structure and they are globular molecules. - (in my view I think this is also wrong)

Please explain these statements.

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  • $\begingroup$ I think 2nd is correct, but have no idea about 1st. Take a look at image of proteins soluble in water $\endgroup$ – Freddy Aug 13 '14 at 5:32
  • $\begingroup$ If 2nd is correct, it sense only globular proteins are soluble? I am not sure ? $\endgroup$ – Yomal Amarathunge Aug 13 '14 at 6:07
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All proteins have complex structures. There are three broad classes: globular, membrane and scleroproteins. Globular proteins are generally water soluble while membrane and scleroproteins are not.

Albumins and haemoglobin are globular and water soluble.

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