BIOS 255 COMPREHENSIVE EXAM 1
1. Which of the following is not a part of the appendicular skeleton?
Answer: Maxilla
2. The joint between teeth and its socket can be structurally classified aswhat specific type
of fibrous joint?
Answer: Gomphosis
3. What is the functional classification of the shoulder joint?
Answer: Diarthrosis
4. Which layer of the epidermis forms calluses in response to abrasion andrepetitive
friction?
Answer: Stratum corneum
5. Which of the following bone cells is responsible for secreting the matrixof osseous
tissue?
Answer: Osteoblasts
6. What are two of the main minerals found in bone matrix?
Answer: Calcium andphosphorus
7. What is the function of the Metaphysis in a long bone?
Answer: Contains theepiphyseal plate
8. What is the function of the Epiphysis in a long bone?
Answer: Forms the ends of thebone
9. What is the function of the Periosteum in a long bone?
Answer: Fibrous covering onthe external surface of the bone
10. What is the function of the Diaphysis in a long bone?
Answer: Stores yellow bonemarrow
11. The layer of connective tissue surrounding an individual muscle fiber isthe
Answer: endomysium
12. The area of a sarcomere that consists of only thin filaments is known asthe
Answer: I-band
13. Which of the following statements best describes the meaning of a cross-bridge in the
process of a muscle contraction?
Answer: Myosin head attachingto the myosin binding sites of actin
, 14. During the phase of an action potential, Na+ is entering thecell,
causing the membrane potential to become more positive.
Answer: Depolarization
15. The nervous system consists of only the brain andspinal cord.
Answer: Central
16. Which of the following muscles are part of the quadriceps? Select all thatapply.
Answer:
Rectus femoris
Vastus lateralis
Vastus medialis
17. Which of the following structures of muscle fibers act as a calcium reservoir?
Answer: Sarcoplasmic reticulum
18. The ability of muscular tissue to shorten is known as
.
Answer: Contractility
19. Which of the following terms best describes the process of actin slidingacross the myosin
filament?
Answer: Power stroke
20. channels respond to changes in membrane potential.
Answer: Volt-age-gated
21. Most homeostatic regulatory mechanisms involve which feedback system?-
Answer: Negative
22. What is the name of the serous membrane that lines the surface of thestomach?
Answer: Visceral peritoneum
23. A molecule that has an unequal number of protons and neutrons is knownas an
Answer: ion
24. Which type of chemical reaction consists of breaking down large moleculesinto
smallerones?
Answer: Decomposition
25. Which of the following macromolecules plays a specific role in producingsex steroids?
Answer: Cholesterol
26. Which organelle specializes in packaging, transporting, and modifying proteins produced
bythe rough ER?
1. Which of the following is not a part of the appendicular skeleton?
Answer: Maxilla
2. The joint between teeth and its socket can be structurally classified aswhat specific type
of fibrous joint?
Answer: Gomphosis
3. What is the functional classification of the shoulder joint?
Answer: Diarthrosis
4. Which layer of the epidermis forms calluses in response to abrasion andrepetitive
friction?
Answer: Stratum corneum
5. Which of the following bone cells is responsible for secreting the matrixof osseous
tissue?
Answer: Osteoblasts
6. What are two of the main minerals found in bone matrix?
Answer: Calcium andphosphorus
7. What is the function of the Metaphysis in a long bone?
Answer: Contains theepiphyseal plate
8. What is the function of the Epiphysis in a long bone?
Answer: Forms the ends of thebone
9. What is the function of the Periosteum in a long bone?
Answer: Fibrous covering onthe external surface of the bone
10. What is the function of the Diaphysis in a long bone?
Answer: Stores yellow bonemarrow
11. The layer of connective tissue surrounding an individual muscle fiber isthe
Answer: endomysium
12. The area of a sarcomere that consists of only thin filaments is known asthe
Answer: I-band
13. Which of the following statements best describes the meaning of a cross-bridge in the
process of a muscle contraction?
Answer: Myosin head attachingto the myosin binding sites of actin
, 14. During the phase of an action potential, Na+ is entering thecell,
causing the membrane potential to become more positive.
Answer: Depolarization
15. The nervous system consists of only the brain andspinal cord.
Answer: Central
16. Which of the following muscles are part of the quadriceps? Select all thatapply.
Answer:
Rectus femoris
Vastus lateralis
Vastus medialis
17. Which of the following structures of muscle fibers act as a calcium reservoir?
Answer: Sarcoplasmic reticulum
18. The ability of muscular tissue to shorten is known as
.
Answer: Contractility
19. Which of the following terms best describes the process of actin slidingacross the myosin
filament?
Answer: Power stroke
20. channels respond to changes in membrane potential.
Answer: Volt-age-gated
21. Most homeostatic regulatory mechanisms involve which feedback system?-
Answer: Negative
22. What is the name of the serous membrane that lines the surface of thestomach?
Answer: Visceral peritoneum
23. A molecule that has an unequal number of protons and neutrons is knownas an
Answer: ion
24. Which type of chemical reaction consists of breaking down large moleculesinto
smallerones?
Answer: Decomposition
25. Which of the following macromolecules plays a specific role in producingsex steroids?
Answer: Cholesterol
26. Which organelle specializes in packaging, transporting, and modifying proteins produced
bythe rough ER?
