1. What is the main feature of ciliated epithelium?
A.
It has hair-like cilia on its free surface
B.
It has thick layers of dead cells
C.
It contains blood vessels between its cells
D.
It is made only of flattened cells
Correct Answer:
It has hair-like cilia on its free surface
Explanation:
Ciliated epithelium is characterized by hair-like structures called cilia on the free surface of its cells.
2. What is the main function of cilia in ciliated epithelium?
A.
To produce red blood cells
B.
To move substances over the epithelial surface
C.
To store fat
D.
To strengthen bones
Correct Answer:
To move substances over the epithelial surface
Explanation:
The coordinated beating of cilia helps move materials such as mucus or an ovum along the epithelial surface.
3. Ciliated epithelium commonly lines which part of the human respiratory tract?
A.
Trachea
B.
Stomach
C.
Urinary bladder
D.
Tendon
Correct Answer:
Trachea
Explanation:
Ciliated epithelium lines parts of the respiratory tract, including the trachea, where its cilia help move mucus and trapped particles.
4. In the respiratory tract, cilia help move mucus toward the:
A.
Alveoli
B.
Throat
C.
Kidneys
D.
Heart
Correct Answer:
Throat
Explanation:
Cilia move mucus containing trapped dust and microorganisms toward the throat, helping clear the respiratory passage.
5. Ciliated epithelium is found in which part of the female reproductive system?
A.
Oviducts
B.
Ovaries only
C.
Uterine muscles only
D.
Cervical bones
Correct Answer:
Oviducts
Explanation:
Ciliated epithelium lines the oviducts, where the movement of cilia helps transport the ovum toward the uterus.
6. Which structure gives ciliated epithelium its name?
A.
Cilia
B.
Microvilli
C.
Flagella
D.
Pseudopodia
Correct Answer:
Cilia
Explanation:
The term ciliated epithelium refers to the presence of cilia, which are short, hair-like projections on the free surface of the cells.
7. Ciliated epithelial cells are especially useful where the body needs to:
A.
Move material in one direction
B.
Store minerals in the skeleton
C.
Contract like muscle cells
D.
Form blood plasma
Correct Answer:
Move material in one direction
Explanation:
The beating of cilia produces directional movement of substances across the epithelial surface.
8. Which substance is commonly moved by cilia in the respiratory passages?
A.
Mucus
B.
Bile
C.
Urine
D.
Synovial fluid
Correct Answer:
Mucus
Explanation:
Cilia in the respiratory passages move mucus, which can contain dust particles and microorganisms, toward the throat.
9. Ciliated epithelium helps transport an ovum through the:
A.
Oviduct
B.
Trachea
C.
Esophagus
D.
Ureter
Correct Answer:
Oviduct
Explanation:
Cilia lining the oviduct assist in moving the ovum toward the uterus.
10. The movement produced by cilia is generally caused by their:
A.
Rhythmic beating
B.
Absorption of water
C.
Secretion of enzymes
D.
Conversion into muscle fibers
Correct Answer:
Rhythmic beating
Explanation:
Cilia move substances by beating rhythmically and in a coordinated manner.
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