The Sarcoplasmic Reticulum Discussion Questions

The Sarcoplasmic Reticulum Discussion Questions
The Sarcoplasmic Reticulum Discussion Questions
1. The sarcoplasmic reticulum is
(A) protected by the skull.
(B) essential for muscle contraction.
(C) involved in protein synthesis and transport.
(D) a cellular joining structure that provides for muscle fiber integrity and
strength.
(E) essential in the transport of ATP from the mitochondria to the contractile unit in muscle cells.
2. Spongy bone is best associated with
(A) bone loss.
(B) the structure of the diaphysis.
(C) the medullary cavity.
(D) the proximal epiphysis.
(E) the periosteum.
3. Which of the following is NOT closely associated with the knee?
(A) Ligaments
(B) Patella
(C) Fibrous joint
(D) Meniscus
(E) Femur
The Musculoskeletal System ‹ 105
434. Which of the following is used to power muscle cells immediately after the
initial supply of ATP is exhausted?
(A) Glucose
(B) Creatine phosphate
(C) Fatty acids
(D) Glycogen
(E) Protein
435. The _____ is the connective tissue that contains osteoclasts.
(A) epiphysis
(B) yellow marrow
(C) haversian canal
(D) compact bone
(E) periosteum
436. The muscles best associated with peristalsis of the digestive system are controlled by
(A) the parasympathetic nervous system.
(B) the cerebrum.
(C) the sympathetic nervous system.
(D) both the sympathetic and the parasympathetic nervous systems.
(E) the cerebrum and the cerebellum.
437. During adolescent development, bones elongate by
(A) forming bone tissue just under the joint cartilage.
(B) deposition of spongy bone within the marrow cavity.
(C) forming bone tissue under the cartilage epiphyseal plate.
(D) deposition of dense bone along the marrow cavity.
(E) deposition of collagenous fibrocartilage at the ends of the marrow cavity.
438. Which of the following is the best description of a tendon?
(A) A connective tissue that encloses synovial fluid
(B) A bone-derived tissue that connects bone to bone
(C) A highly vasculated tissue that connects bone to muscle
(D) A collagenous material that connects bone to bone
(E) A connective tissue that connects bone to muscle
439. The thin filament of a sarcomere is composed primarily of
(A) titin.
(B) tropomyosin.
(C) actin.
(D) troponin.
(E) myosin.
106 › McGraw-Hill Education 500 MCAT: Biology
440. Osteoarthritis differs from rheumatoid arthritis in that the former
(A) is caused by wear, while the latter is caused by infection.
(B) retains the overall integrity of the joint, while the latter produces
permanent deformation.
(C) is initiated by mechanical mechanisms, while the latter is an autoimmune disorder.
(D) affects primarily synovial joints, while the latter primarily affects
fibrocartilage.
(E) involves adjacent ligaments, while the latter does not.
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