Albumin: the water-soluble, non-fibrous protein

The same question, asked 2 times: 2021 Paper 14, 2021 Paper 23. Every wording below, oldest first.

Try each one first, then open its answer.

Question 1
2021 Paper 14
25 $Which of the following is water soluble protein?$
Tap an option to check your answer.
Question 2
2021 Paper 23
37 $Which of the following is NOT an example of fibrous protein?$
Tap an option to check your answer.