The exoskeletal plates in the exoskeleton of cockroach are joined to each other by:

1. Proteinaceous pellicle	2. Arthrodial membrane
3. Ligament	4. Cellulose threads

Which of the following animal tissues can be derived from all three embryonic germ layers?
1. Epithelium
2. Connective
3. Muscle
4. Neural

What cell secrets the myelin sheath around the axolemma in central nervous system?
1. Schwann cell
2. Oligodendrocyte
3. Astrocyte
4. Microglial cell

Epithelial tissue:
1. has a blood supply and a nerve supple
2. has a blood supply but no nerve supply
3. has a nerve supply but no blood supply
4. lacks a blood supply and a nerve supply

The calcium binding protein, troponin, is found in:
I. Skeletal muscle
II. Smooth muscle
III. Cardiac muscle

1. Only I
2. Both I and II
3. Both I and III
4. I, II and III

Match bone cells in Column I with their function in Column II and select the correct answer from the code given:

Code
    A B C D
1. a b c d
2. b a d c
3. a c d b
4. a d c b

Presence of intercalated discs help cardiac muscles to act as a functional syncytium. This is possible because the structure of these discs have:

The type of epithelium that makes up the ‘Urothelium’ is:
1. Transitional
2. Stratified squamous non keratinized
3. Pseudostratified
4. Cuboidal brush bordered

Secretions from mammary glands are expelled by the contractile function of:
1. Smooth muscle
2. Skeletal muscle
3. Myoepithelium
4. Epithelio-muscular cell

In the given diagram of ultrastructure of a compact bone, identify A, B, C and D:

1. Osteon, Lamellae, Haversian canal, Volkmann’s canal respectively
2. Lamellae, Osteon, Haversian canal, Volkmann’s canal respectively
3. Lamellae, Osteon, Volkmann’s canal, Haversian canal respectively
4. Osteon, Lamellae, Volkmann’s canal, Haversian canal respectively