Question

Tuncin is similar to
A. Cellulose
B. Chitin
C. Cuticle
D. Scleroprotein

Answer 1

Hint: Tunicins are mechanically powerful and are components present in certain species that are insoluble in water. They are also known as structural proteins. The principal function of tunicin is to provide cells and tissues with strength and defense.

Complete answer:
Chitin is a long-chain N-acetylglucosamine polymer, a glucose analog. This polysaccharide is a primary component of arthropod exoskeletons.
A cuticle is one of a number of hard but flexible, non-mineral outer coverings that provide protection for an organism, or parts of an organism.
Scleroproteins are mechanically strong and are insoluble in water. Mostly they are structural proteins that provide cells and tissue with strength and defense.
Urochordates have four elementary characteristics of bacteria in the larval stage, but adult chordates possess neither a notochord nor a dorsal nerve cord.
Tadpole-like larvae are plankton and possess fundamental chordate characteristics that aid them find a substrate for attachment.
The body of Ascidians is covered by cellulose such as polysaccharides, an organ made of tunic or by test.
These are structural cellulose which like tunicates, is chiefly present in the shell of many animals.
Acid mucopolysaccharides and proteins that form a coating material that appears as a continuous sheath are associated with them.

Hence, the correct answer is option (A).

Note: Urochordata is also known as tunicata. From the special outer covering or tunic, the word tunicates have been derived.
The tunic is made from carbohydrates and proteins. As an exoskeleton, the tunic acts. Often referred to as research is the tunic.
Both urochordates are species from the sea. They are mainly sedentary and others are pelagic. An examination covers the body. It is formed by a tunic that is bound to cellulose.