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Biology 13A – Sample Exam 2
1. Which of the following is not one of the four basic types of body tissues?
a. epithelial tissue
b. connective tissue
c. brain tissue
d. muscle tissue
2. Skeletal muscle tissue is found
a. in the walls of the intestines
b. attached to the skeleton
c. in the heart
d. none of the above are true
3. Fibrocytes are classified as
a. epithelial tissue cells
b. muscle tissuecells
c. connective tissue cells
d. nervous tissue cells
4. ____________ support nervous tissue, whereas ____________
conduct the electrical impulses.
a. leucocytes, erythrocytes
b. axons, dendrites
c. neuroglia, neurons
d. proteins, lipids
5. Collagen fibers are proteins that are particularly abundant in
a. epithelium
b. muscle
c. nervous tissue
d. cartilage
6. Striated muscle with intercalated discs indicate muscle cells
a. found in the intestine
b. under involuntary control
c. found in the heart
d. b and c are correct
7. The lacunae of cartilage contain
a.
b.
c.
d.
osteocytes
chondrocytes
collagen fibers
matrix
8. A waterproofing protein present in the epidermis, nails, and hair is called
a. disaccharide
b. carotene
c. keratin
d. melanin
9. A sebaceous gland
a. secretes oily fluid into a hair follicle
b. secretes watery fluid in response to elevated body temperature
c. is a major producer of body heat
d. secretes watery fluid into a hair follicle
10. The cells that produce the shaft of a hair are
a. epithelial cells
b. fibrous connective tissue cells
c. loose connective tissue cells
d. adipose cells
11. The lunula of the nail appears white because
a. it is bruised due to constant trauma
b. it is thicker than the rest of the nail
c. it is the oldest part of the nail
d. it is low in melanin
12. Which part of the follicle is the site of hair growth?
a. papilla
b. cortex
c. hair matrix
d. hair root
e. hair shaft
13. The arrector pili
a. are smooth muscle
b. activate sweat glands
c. are responsible for goose bumps
d. all of the above
e. a and c are correct
14. Scent glands
a. are found in the axillary and genital regions
b. begin functioning at puberty
c. secrete odorless secretions
d. all of the above
15. Most spongy bone is found in
a. flat or irregular bones
b. the diaphysis of a long bone
c. the periosteum
e. articular cartilage
16. The shaft of a long bone is known as the
a. epiphysis
b. marrow
c. articular cartilage
d. diaphysis
17. Most bone formation begins as __________________ tissue.
a. epithelial
b. cartilage
c. fibrous
d. blood
18. The knee joint is formed by the articulation of the
a. femur with the tibia and fibula
b. femur with the tarsal bones
c. humerus with the radius and ulna
d. tibia with the tarsal bones
19. The fibula is found in the
a. forearm
b. thigh
c. leg
d. hand
20. Which is the correct order of events for the stages of healing after a bone fracture?
a. hematoma, bony callus, fibrocartilage callus, bone remodeling
b. hematoma, bone remodeling, fibrocartilage callus, bony callus
c. fibrocartilage callus, hematoma, bone remodeling, bony callus
d. hematoma, fibrocartilage callus, bony callus, bone remodeling
21. The sutures joining the bones in the skull are
a. freely moveable joints
b. slightly moveable joints
c. immoveable joints
e. not considered to be joints
22. In the disease _____________________, the articular cartilages of joints disintegrate
and the joint surfaces become roughened.
a. osteoarthritis
b. rheumatoid arthritis
c. muscular dystrophy
d. none of the above
23. The layers of connective tissue surrounding a skeletal muscle from the outside to the
inside in correct order are:
a. endoymsium, perimysium and epimysium
b. epimysium, perimysium and endomysium
c. epimysium, endomysium and perimysium
d. perimysium, epimysium and endomysium
24. The sarcoplasmic reticulum of muscles releases calcium in response to
a. ATP
b. an action potential
c. acetylcholine
d. a muscle contraction
25. Endomysium refers to
a. a connective tissue sheath covering large muscle bundles
b. a connective tissue sheath covering the neuron
c. the muscle cell
d. a connective tissue sheath covering the muscle cell
26. Muscle contraction is stopped by
a. acetylcholine
b. the closure of the synaptic cleft
c. the breakdown of acetylcholine by acetylcholinesterase
d. an electrical impulse moving the opposite direction across the neuromuscular
junction.
27. When a muscle contracts,
a. calcium ions bind to the troponin of the thin filament
b. calcium ions bind to the myosin filament
c. a phosphate breaks off of ATP and energy is released
d. ADP binds to a phosphate forming ATP and energy is stored
e. both “a” and “c”
28. Myofibrils are composed primarily of
a. actin and myosin
b. ATP and ADP
c. calcium ions
e. cross bridges
29. During muscle movement, the muscle that would perform the opposite action to the
action being generated is called the
a. antagonist
b. synergist
c. prime mover
d. opponent
30. The sternocleidomastoid muscle is found in the
a. chest
b. neck
c. thigh
d. foot