1. What is the basic structural feature of simple cuboidal epithelium?
A.
A single layer of cube-shaped cells
B.
Several layers of flat cells
C.
A single layer of elongated cells
D.
Several layers of cube-shaped cells
Correct Answer:
A single layer of cube-shaped cells
Explanation:
Simple cuboidal epithelium consists of one layer of cube-shaped cells.
2. Which shape do the cells of simple cuboidal epithelium generally have?
A.
Spindle-shaped
B.
Cube-shaped
C.
Pyramid-shaped
D.
Thread-shaped
Correct Answer:
Cube-shaped
Explanation:
The cells are approximately as tall as they are wide, giving them a cuboidal or cube-like shape.
3. Where is simple cuboidal epithelium commonly found?
A.
Kidney tubules
B.
Outer surface of the skin
C.
Air sacs of the lungs
D.
Heart chambers
Correct Answer:
Kidney tubules
Explanation:
Simple cuboidal epithelium commonly lines kidney tubules, where it helps in absorption and secretion.
4. Which function is commonly performed by simple cuboidal epithelium?
A.
Secretion and absorption
B.
Transmission of nerve impulses
C.
Contraction and movement
D.
Storage of fat
Correct Answer:
Secretion and absorption
Explanation:
Simple cuboidal epithelium is specialized for activities such as secretion and absorption.
5. Simple cuboidal epithelium commonly lines the ducts of which structures?
A.
Glands
B.
Bones
C.
Skeletal muscles
D.
Nerves
Correct Answer:
Glands
Explanation:
This epithelium commonly forms the lining of ducts in glands and helps transport glandular secretions.
6. How many cell layers are present in simple cuboidal epithelium?
A.
One
B.
Two
C.
Three
D.
Many
Correct Answer:
One
Explanation:
The term simple means that the epithelium has only one layer of cells.
7. What is the usual shape of the nucleus in a cell of simple cuboidal epithelium?
A.
Round
B.
Star-shaped
C.
Thread-like
D.
Branched
Correct Answer:
Round
Explanation:
Cells of simple cuboidal epithelium usually contain a centrally located, rounded nucleus.
8. Which feature helps simple cuboidal epithelium carry out absorption efficiently?
A.
A single layer of cells
B.
Many layers of cells
C.
Absence of cell membranes
D.
Presence of muscle fibres
Correct Answer:
A single layer of cells
Explanation:
A single cell layer provides a short distance for the movement of substances during absorption.
9. Which of the following is an example of a location containing simple cuboidal epithelium?
A.
Small ducts of glands
B.
Surface of the tongue
C.
Tendons
D.
Compact bone
Correct Answer:
Small ducts of glands
Explanation:
Small glandular ducts are commonly lined by simple cuboidal epithelium.
10. Simple cuboidal epithelium is best suited for which activity?
A.
Secretion of substances
B.
Rapid body movement
C.
Support of the skeleton
D.
Transmission of electrical signals
Correct Answer:
Secretion of substances
Explanation:
The cuboidal cells contain cellular machinery that supports secretion, making this a major function of the tissue.
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