IB Biology 11.2 Movement Quiz

What is the primary function of bones and exoskeletons in the body?

• To provide energy for muscles

• To act as levers and provide anchorage for muscles

• To produce synovial fluid

• To store calcium ions

Which type of joint allows certain movements but not others?

• Synovial joints

• Fixed joints

• Cartilaginous joints

• Fibrous joints

What is required for the sliding of actin and myosin filaments in muscle contraction?

• Calcium ions and ATP hydrolysis

• Synovial fluid and ATP hydrolysis

• Calcium ions and synovial fluid

• ATP hydrolysis and cartilage

What is the role of calcium ions in muscle contraction?

• To provide energy for muscle fibers

• To control muscle contractions by interacting with troponin

• To lubricate synovial joints

• To form the structure of sarcomeres

Where can endoskeletons be found in the body?

• On the outside of the body

• On the inside of the body

• In the synovial joints

• In the muscle fibers

What are exoskeletons primarily made of?

• Bone

• Cartilage

• Chitin

• Muscle fibers

Which of the following is an example of an organism with an exoskeleton?

• Human

• Dog

• Crab

• Bird

In the human body, what acts as the fulcrum in a lever system?

• The bone

• The joint

• The muscle

• The weight

What provides the effort force on the bone in the human body?

• The bone

• The joint

• Muscle contraction

• The weight

What is the role of bones in the human body?

• Provide a hard framework for stability and partial protection of body parts

• Act as a site for the storage of calcium and phosphate

• Provide attachment/anchoring surfaces for muscles

• All of the above