BIOS 150 Week 3 Quiz Exam 1 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. The main function of the skeletal system is:
A. Hormone production
B. Support and protection
C. Digestion
D. Gas exchange
Answer: B. Support and protection
Rationale: Bones provide structural support and protect internal
organs.
2. Bone tissue is primarily composed of:
A. Collagen and minerals
B. Cartilage and lipids
C. Muscle fibers
D. Epithelial cells
Answer: A. Collagen and minerals
,Rationale: Collagen provides flexibility; calcium phosphate provides
strength.
3. The type of bone found at the ends of long bones is:
A. Compact
B. Spongy
C. Flat
D. Irregular
Answer: B. Spongy
Rationale: Contains red bone marrow and reduces weight of bones.
4. The shaft of a long bone is called:
A. Epiphysis
B. Diaphysis
C. Periosteum
D. Endosteum
Answer: B. Diaphysis
Rationale: The long, central part of a long bone.
5. The outer layer of bone is called:
A. Periosteum
B. Endosteum
C. Epiphysis
D. Medullary cavity
,Answer: A. Periosteum
Rationale: Dense connective tissue covering the bone surface.
6. Red bone marrow is primarily responsible for:
A. Fat storage
B. Blood cell production
C. Calcium storage
D. Cartilage formation
Answer: B. Blood cell production
Rationale: Red marrow produces erythrocytes, leukocytes, and
platelets.
7. Yellow bone marrow stores:
A. Calcium
B. Fat
C. Iron
D. Red blood cells
Answer: B. Fat
Rationale: Acts as energy reserve in the medullary cavity.
8. Osteoblasts function to:
A. Break down bone
B. Form bone
C. Store fat
D. Produce cartilage
, Answer: B. Form bone
Rationale: Secrete matrix and initiate calcification.
9. Osteoclasts function to:
A. Break down bone
B. Form bone
C. Produce cartilage
D. Store minerals
Answer: A. Break down bone
Rationale: Resorb bone tissue during growth and repair.
10. Osteocytes are:
A. Immature bone cells
B. Mature bone cells
C. Cartilage cells
D. Fat cells
Answer: B. Mature bone cells
Rationale: Maintain bone matrix and detect mechanical stress.
11. The bone matrix is primarily:
A. Collagen fibers and calcium salts
B. Lipids
C. Water only
D. Proteins and RNA
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. The main function of the skeletal system is:
A. Hormone production
B. Support and protection
C. Digestion
D. Gas exchange
Answer: B. Support and protection
Rationale: Bones provide structural support and protect internal
organs.
2. Bone tissue is primarily composed of:
A. Collagen and minerals
B. Cartilage and lipids
C. Muscle fibers
D. Epithelial cells
Answer: A. Collagen and minerals
,Rationale: Collagen provides flexibility; calcium phosphate provides
strength.
3. The type of bone found at the ends of long bones is:
A. Compact
B. Spongy
C. Flat
D. Irregular
Answer: B. Spongy
Rationale: Contains red bone marrow and reduces weight of bones.
4. The shaft of a long bone is called:
A. Epiphysis
B. Diaphysis
C. Periosteum
D. Endosteum
Answer: B. Diaphysis
Rationale: The long, central part of a long bone.
5. The outer layer of bone is called:
A. Periosteum
B. Endosteum
C. Epiphysis
D. Medullary cavity
,Answer: A. Periosteum
Rationale: Dense connective tissue covering the bone surface.
6. Red bone marrow is primarily responsible for:
A. Fat storage
B. Blood cell production
C. Calcium storage
D. Cartilage formation
Answer: B. Blood cell production
Rationale: Red marrow produces erythrocytes, leukocytes, and
platelets.
7. Yellow bone marrow stores:
A. Calcium
B. Fat
C. Iron
D. Red blood cells
Answer: B. Fat
Rationale: Acts as energy reserve in the medullary cavity.
8. Osteoblasts function to:
A. Break down bone
B. Form bone
C. Store fat
D. Produce cartilage
, Answer: B. Form bone
Rationale: Secrete matrix and initiate calcification.
9. Osteoclasts function to:
A. Break down bone
B. Form bone
C. Produce cartilage
D. Store minerals
Answer: A. Break down bone
Rationale: Resorb bone tissue during growth and repair.
10. Osteocytes are:
A. Immature bone cells
B. Mature bone cells
C. Cartilage cells
D. Fat cells
Answer: B. Mature bone cells
Rationale: Maintain bone matrix and detect mechanical stress.
11. The bone matrix is primarily:
A. Collagen fibers and calcium salts
B. Lipids
C. Water only
D. Proteins and RNA
