OCR General Certificate of Secondary Education (GCSE) Biology Practice Exam

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Get ready for the OCR GCSE Biology exam with our comprehensive quiz, featuring flashcards and multiple choice questions. Understand the exam format, key topics, and effective study strategies to excel.

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What is the primary function of cartilage in joints?

Connecting muscle to bone
Providing a smooth protective surface
Storing minerals
Producing synovial fluid

The correct answer is: Providing a smooth protective surface

The primary function of cartilage in joints is to provide a smooth protective surface. Cartilage is a type of connective tissue that covers the ends of bones at joints, allowing them to move smoothly against each other. This smooth surface reduces friction during movement, which is essential for the efficient functioning of joints. The cushioning properties of cartilage also help absorb shock, protecting the bones from impact and wear during activities such as walking, running, or jumping. Other options describe functions that are not associated with cartilage. Connecting muscle to bone is the role of tendons, while the storage of minerals is a function of bones. The production of synovial fluid occurs in the synovial membrane, not directly in cartilage.