BIO 115 Milestone 2_Bio115 Milestone 2 Questions and Answers Latest Version

Which of the following best characterizes red skeletal muscles? • Red skeletal muscles contract more slowly than white skeletal muscles because they contain fewer mitochondria. • Red skeletal muscles, such as those in your legs and back, allow for longer sustained activities such as standing, walking or running. • Red skeletal muscles are also sometimes referred to as "fast skeletal muscles" or "fast-twitch skeletal muscles." • An olympic sprinter is highly reliant on red skeletal muscle because they contract very quickly for a short period of time. CONCEPT Types of Skeletal Muscle and Muscle Contraction Overview 2 Which of the following statements is true? • Yellow bone marrow produces red and white blood cells. • Yellow bone marrow is only found in children. • Yellow bone marrow can convert to red bone marrow. • Yellow bone marrow stores proteins. CONCEPT Bone Structure and Growth 3 Which of the following is released by the brain when there is too little calcium in the blood? • Osteoblasts • Osteoclasts • Calcitonin • Parathyroid hormone (PTH) CONCEPT Homeostasis and Bone Remodeling 4 Which of the following is found on the outside of skeletal muscles? • Sheath • Bundles • Myofibrils • Sarcomere CONCEPT