Related InterviewSolutions

• Consider the diagram of thin myofilament. Now, read carefully the statements about molecular arrangement of actin and myosin in the filament. I. Each actin (thin filament ) is made up of 2 F-(filamentous) actins. II. F-actin is the polymer of G-(globular) actin. III. Two-F-actins are twisted into a helix. IV. Two strands of tropomyosin run along the entire length of F-actin. Choose the correct option.A. I and IIB. III and IVC. I and IVD. All of the above
• The collar bone is also known asA. clavicleB. scapulaC. pollexD. phalenges
• Elbow joint is an example ofA. pivot jointB. hinge jointsC. gliding jointD. ball and socket joint
• Which one of the following items gives its correct total numberA. Floating ribs in humans - 4B. Amino acdis found in protein - 16C. Types of diabetes - 3D. Cervical vertebrae in humans - 8
• The muscle fibres that contract slowly areA. red muscle fibresB. white muscle fibresC. Both (a) and (b)D. None of these
• Skeletal muscles fibre has light and dark bands. Which is correct match of protein with its light refractive property and colourA. `{:(,"Protein",,"Colour",,"Property"),(,"Myosin",,"Light",,"Anisotropic"):}`B. `{:(,"Protein",,"Colour",,"Property"),(,"Actin",,"Dark",,"Anisotropic"):}`C. `{:(,"Protein",,"Colour",,"Property"),(,"Myosin",,"Dark",,"Isotropic"):}`D. `{:(,"Protein",,"Colour",,"Property"),(,"Actin",,"Light",,"Isotropic"):}`
• Myoglobin of skeletal musclesA. is present in sarcoplasmB. stores carbon dioxideC. stores oxygenD. Both (a) and (b)
• Match the following lists with reference to disorders of the muscular and skeletal system. A. `{:(,"A",,"B",,"C",,"D"),(, 2,,3,,4,,1):}`B. `{:(,"A",,"B",,"C",,"D"),(, 2,,4,,3,,1):}`C. `{:(,"A",,"B",,"C",,"D"),(, 3,,2,,1,,4):}`D. `{:(,"A",,"B",,"C",,"D"),(, 2,,3,,1,,4):}`
• The characteristics and an example of a symbol joint in humans is `{:(,"Characterstics","Example"),((a),"Lymph filled between two bones, limited movement","Gliding joint between carpals"),((b),"Fluid cartilage between two bones, limited movements","Knee joint"),((c),"Fluid filled between two joints, provides cushion","Skull bones"),((d),"Fluid filled synovial cavity between two bones","Joint between atlas and axis"):}`A. `{:(,"Characteristics",,"Example"),(,"Fluid filled between two joints, provides cushion",,"Skull bones"):}`B. `{:(,"Characteristics",,"Example"),(,"Fluid-filled synovial cavity between two bones",,"Joint between atlas and axis"):}`C. `{:(,"Characteristics",,"Example"),(,"Lymph-filled between two bones, limited movement",,"Gliding, joint"):}`D. `{:(,"Characteristics",,"Example"),(,"Fluid catilage between two bones, limited movement",,"Knee joint"):}`
• Choose the correct statement (s) for the flagellar movements.A. They are found in choanocytes of spongesB. Human sperm also show thisC. They help in movement in ParameciumD. Both (a) and (b)