Question

What are the functions of the following proteins: albumin, keratin, myosin, globulin, cytochromes, insulin, and myoglobin?

Answer 1

See the explanation below.

Explanation:

Albumin is found in the blood of humans.

Keratin makes up hair and nails.

Myosin is a protein found in muscle cells and is responsible for muscular contraction.

Globulins are one of the groups of blood proteins with one of their functions involving the immune system.

Cytochrome proteins are involved in electron transport in the mitochondria (and in chloroplasts in plants).

Insulin is a protein produced by the pancreas and which circulates in the blood and regulates blood sugar levels.

Myoglobin is an oxygen-storage protein found in the muscle cells.

Answer 2

(1)Albumin globular
(2)Keratin fibrous
(3)Myosin globular in monomer, fibrous in filament
(4)Globulin ----- see explaination
(5)Cytochrome globular and fibrous
(6)Insulin globular
(7)Myoglobin globular

Explanation:

All the proteins you mentioned are Quartenery structure of the proteins which has more than one unit of the polypeptide that is they are dimers, trimers, hexamers, etc. each of which in turn have a tertiary or secondary structure as their core.

here i am describing about the single monomer which structure they have
(1)Albumin tertiary

(2)Keratin secondary

(3)Myosin tertiary and secondary

(4)Globulin --see explaination below

(5)Cytochrome secondary and tertiary

(6)Insulin secondary

(7)Myoglobin tertiary structure

I have classified all of them as globular and fibrous on the basis of their structure which they finally attain. this is better classification according to me.

Globulin are a family of Globular proteins they are a FAMILY, not a single protein.