BSC 2346 A&P MIDTERM EXAM

BSC 2346 A&P MIDTERM EXAM • Question 1 Which cellular organelle produces ATP, the body’s energy source? 1 out of 1 points Selected Answer: D. Mitochond ria • Question 2 Enzymes are what type of organic compound? 1 out of 1 points Selected Answer: C. Protei ns • Question 3 For a hypothesis to be valid, it must be testable? 1 out of 1 points Selected Answer: Tru e • Question 4 1 out of 1 points This type of tissue lines internal hollow organs and is continuously regenerating new cells that are scraped off? Selected Answer: A. Epithelial tissue • Question 5 What is not a primary function of a protein? 0 out of 1 points Selected Answer: D. Hormo ne • Question 6 This type of tissue is diverse and typically contains a lot of extracellular space that supports and connects different type of tissues and organs of body? 1 out of 1 points Selected Answer: D. Connective tissue • Question 7 1 out of 1 points Both positive and negative feedback loops help maintain homeostasis for the body? Selected Answer: Tru e • Question 8 What choice is NOT true regarding cellular respiration? 1 out of 1 points Selected Answer: B. ATP is only utilized by muscle cells • Question 9 Passive transport can only occur when there is a concentration gradient of low to high for a substance? 1 out of 1 points Selected Answer: Fals e • Question 10 Which statement best describes the term homeostasis? 1 out of 1 points Selected Answer: D. Balance of internal factors within the body such as blood sugar levels • Question 11 Which organic compound has the primary function of energy storage? 0 out of 1 points Selected Answer: B. Protei ns • Question 12 What term best describes the genetic allele make up of an individual? 1 out of 1 points Selected Answer: D. Genoty pe • Question 13 1 out of 1 points Autosomal recessive disorders will commonly affected individuals in each generation? Selected Fals Answer: e • Question 14 A positive feedback loop will negate or reverse a stimulus within the body? 1 out of 1 points Selected Answer: Fals e • Question 15 The plasma membrane is mainly composed of this organic compound? 0 out of 1 points Selected Answer: B. Nucleic acids • Question 1 What structure and/or substance is NOT found within the dermis? 1 out of 1 points Selected Answer: B. Kerati n • Question 2 Which choice is NOT true about the epidermis? 1 out of 1 points Selected Answer: A. It contains blood vessels • Question 3 1 out of 1 points Which layer of skin is the outer most layer and contains dead cells that are filled with keratin? Selected Answer: A. Stratum corneum • Question 4 Which gland is responsible for secreting sweat and is the most numerous type of gland in the integument? Selected B. 1 out of 1 points Answer: Eccrine gland • Question 5 What is NOT true of keratinocytes? 1 out of 1 points Selected Answer: C. They have a 3-4 month life cycle • Question 6 Extensions of dermis up into the epidermis that is responsible for fingerprints is called: 1 out of 1 points Selected Answer: D. Dermal papillae • Question 7 The integument system is involved in the production of vitamin D by producing a vitamin D precursor when exposed to UV light? 0 out of 1 points Selected Answer: Fals e • Question 8 Blood vessels in the epidermis will dilate increasing blood flow through the skin allow heat to dissipate from the body? 0 out of 1 points Selected Answer: Tru e • Question 9 Skin cancer originates in which layer of the skin? 1 out of 1 points Selected Answer: B. Epider mis • Question 10 Melanoma is the most common type of skin cancer? 1 out of 1 points Selected Answer: Fals e • Question 11 Which choice is true of collagen fibers? 0 out of 1 points Selected Answer: B. They provide an ability of the skin to stretch and retain its shape • Question 12 Which choice is NOT a description of a function of the integument system? 1 out of 1 points Selected Answer: C. Assists in the production of vitamin C • Question 13 What is NOT a complication of burns? 1 out of 1 points Selected Answer: B. Decrease function of immune system • Question 14 Which gland is responsible for secreting an oily substance that helps to lubricate and softens the skin and hair? 1 out of 1 points Selected Answer: C. Sebaceous gland • Question 15 Hair and nails are mainly composed of what substance? 1 out of 1 points Selected Answer: D. Kerati n • Question 1 Which choice best relates and/or describes Wolf’s law of bone? 1 out of 1 points Selected Answer: C. The density of bone matrix of bone is determined by the mechanical stresses placed upon it • Question 2 This type of bone cell is activated with the release of parathyroid hormone? 1 out of 1 points Selected Answer: B. Osteocl ast • Question 3 Which statement is NOT true regarding an osteon? 1 out of 1 points Selected Answer: C. Found in both spongy and compact bone • Question 4 Which choice is true of parathyroid hormone? 1 out of 1 points Selected Answer: D. Increases the production of vitamin D • Question 5 Which of the following is NOT a substance found within bone tissue? 1 out of 1 points Selected Answer: C. Elastic fibers • Question 6 The majority of bones in the body are formed by endochondral 1 out of 1 points ossification where a cartilage model of bone is eventually converted to bone? Selected Answer: Tru e • Question 7 Which statement is true regarding the epiphyseal plates? 1 out of 1 points Selected Answer: C. It’s a portion of bone where cartilage cells are converted to bone tissue • Question 8 What is NOT a primary function of the skeletal system? 1 out of 1 points Selected Answer: B. Calcitonin production • Question 9 Bone remodeling is a function of what cells? 1 out of 1 points Selected Answer: C. Osteoblasts and osteoclasts • Question 10 1 out of 1 points The inorganic portion of the extracellular matrix space is produced by the osteoblasts? Selected Answer: Fals e • Question 11 Which choice is true regarding calcitonin? 1 out of 1 points Selected Answer: D. Activates the activity of osteoblasts • Question 12 Formation of the fibrocartilaginous callus in the fracture repair of bone is followed up by which process? 1 out of 1 points Selected Answer: C. Bony callus formation • Question 13 The trabeculae of spongy bone are well organized and align precisely along lines of stress, which ultimately help bone from breaking? 1 out of 1 points Selected Answer: Tru e • Question 14 Which statement is NOT true of red bone marrow? 1 out of 1 points Selected Answer: D. Located in the medullary cavity of long bones in healthy adults • Question 15 1 out of 1 points The organic portion of the extracellular matrix space provides all of the following functions except for: Selected Answer: A. Hardne ss • Question 1 Which choice best describes the function T-tubules have within muscle contraction? 1 out of 1 points Selected Answer: C. Transmit the action potential deep into the muscle cell • Question 2 Which statement is NOT true regarding muscle contraction? 1 out of 1 points Selected Answer: B. Calcium ions bind to the tropomyosin protein • Question 3 Which statement is true regarding muscle contraction? 1 out of 1 points Selected Answer: C. ATP is needed to release the thick filament from the thin filament • Question 4 1 out of 1 points Fast glycolytic muscle fibers do not fatigue quickly due to their rich supply of myoglobin? Selected Answer: Fals e • Question 5 1 out of 1 points What is the neurotransmitter released from motor neurons initiating muscle contraction? Selected Answer: C. Acetylcholi ne • Question 6 What answer is NOT true regarding muscle contraction? 1 out of 1 points Selected Answer: C. ATP is needed for the thick filament to bind to the thin filament • Question 7 Which statement best describes a sarcomere? 1 out of 1 points Selected Answer: C. It is the smallest contractile unit of a muscle fiber • Question 8 What statement is true of smooth muscle? 1 out of 1 points Selected Answer: A. It is found mainly within internal organs such as the bladder and uterus • Question 9 What factor is NOT required for the process of muscle contraction to occur? 1 out of 1 points Selected Answer: A. Sodium ions to be present within the muscle fiber’s cytoplasm • Question 10 Which choice best describes the function of myoglobin? 1 out of 1 points Selected Answer: D. Provides a small reserve supply of oxygen for the muscle cell • Question 11 What structure separates one fascicle from another in a muscle? 1 out of 1 points Selected Answer: A. Perimysi um • Question 12 Which statement is NOT true regarding slow oxidative muscle fibers? 1 out of 1 points Selected Answer: D. Appears white in color within a specimen • Question 13 Which choice best describes what a fascicle is? 1 out of 1 points Selected Answer: B. Bundle of muscle fibers enclosed by connective tissue • Question 14 Anaerobic respiration produces lactic acid as a by-product but 0 out of 1 points creates more ATP for muscle contraction when compared to aerobic respiration? Selected Answer: Tru e • Question 15 0 out of 1 points A motor unit is all the nerves that innervate all of the muscle fibers of one muscle? Selected Answer: Tru e