IB Biology Topic 11

Which of the following is not a function of bones and endoskeleton?

• acting as levers

• providing structural support

• providing force for movement

• anchoring muscles

Which types of movement are permitted by the elbow joint?

• flexion and extension

• abduction and adduction

• rotation

• all the above

Which types of movement are permitted by the hip joint?

• flexion and extension

• adduction and abduction

• rotation

• all the above

Which letter represents the triceps muscle?

• A

• B

• G

• H

Which letter represents the ulna and cartilage respectively?

• E and C

• F and D

• F and C

• E and D

Which is not a function of cartilage?

• absorbing mechanical shocks

• reducing friction between bones

• connecting bones to muscles

• allowing smooth movement between bones

What is the function of synovial fluid?

• protecting the ends of bones

• providing force for movement

• creating hydrostatic pressure

• lubricating joints

Which of the following does not apply to skeletal muscle tissue?

• muscle fibers contain intercalated discs

• myofibrils have repeated units called sarcomeres

• muscle fibres contain many contractile elements called myofibrils

• a muscle fibre is multinucleated

Which number represents myosin filament?

• 1

• 5

• 3

• 4

The length of a sarcomere is represented by

• 1

• 2

• 5

• 6