Stage 1 Series – Total Marks – 30 / Time Allowed – 1 Hour
I- Multiple Choice Questions;
- A hydrostatic skeleton is very important for the muscular contractions in __?
a. Insects
b. Jellyfishes
c. Vertebrates
d. Sponges - Which one bone is paired cranial bone?
a. Parietal
b. Sphenoid
c. Ethmoid
d. Occipital - It is a kind of pivotal joint?
a. Wrist
b. Heel
c. Atlas & Axis
d. None - Which pair is related more related to one another?
a. Estrogen level – Spondylosis
b. Herniation of disc – Sciatica
c. Cleft Palate – Osteoporosis
d. Osteoarthritis – Rickets - The fracture of continuously moveable joints results in the difficulty in the formation of __?
a. Hematoma
b. Soft callus
c. Remodeling
d. None of the above - Which one is the primitive kind of muscle and present in all animals?
a. Smooth
b. Cardiac
c. Skeletal
d. Contractile - Which one does not occur during the contraction according to the sliding filament model?
a. Disappearance of I Band
b. Sarcomere shortens
c. Z line comes closer
d. H zone disappears - The main source of calcium for muscular contraction?
a. T Tubule
b. Sarcoplasm
c. Sarcoplasmic reticulum
d. Triads - The binding site of the myosin cross-bridges is present on ____.
a. Actin
b. Tropomyosin
c. Troponin
d. Entire I band - which one of the following does not responsible for the flexion of the arm?
a. Brachialis
b. Brachioradialis
c. Triceps
d. All are responsible
II- Short Answer Questions? - Differentiate between collenchyma and sclerenchyma.
- Give the difference between mollusks and insect’s exoskeletons.
- Enlist facial bones.
- What is the T System?
- What are the similarities between cardiac muscles and Skeletal muscles?
- What is the difference between osteoporosis and osteoarthritis?
III- Detailed answer Question. - Write a detailed note on the ultrastructure of skeletal muscle.
- What are the evolutionary changes in the skeleton of vertebrates?
Honesty is the best policy. Learn and Lead the world. Best of Luck