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Chapter 33: Q.12 (page 945)

Which type of epithelial cell is best adapted to aid diffusion?

a. squamous

b. cuboidal

c. columnar

d. transitional

Short Answer

Expert verified

The correct answer is (a) squamous

Squamous epithelia specialized in aiding diffusion.

Step by step solution

01

Step1. Introduction 

Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusions, and sensory reception.
02

Explanation for correct answer

a. squamous

Squamous epithelia type of epithelia made of flat cells, specialized in aiding diffusion or preventing abrasion.

03

Explanation For Incorrect options

b. cuboidal

Cuboidal epithelia, epithelia made of cube-shaped cells, specialized in glandular functions.

c. columnar

Columnar epithelia, epithelia made of cells taller than they are wide, specialized in absorption.

d. transitional

Transitional epithelia, epithelia that can transition for appearing multilayered to simple; also called uroepithelia.

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Most popular questions from this chapter

Which of the following statements about types of epithelial cells is false?

a. Simple columnar epithelial cells line the tissue of the lung.

b. Simple cuboidal epithelial cells are involved in the filtering of blood in the kidney.

c. Pseudostratisfied columnar epithilia occur in a single layer, but the arrangement of nuclei makes it appear that more than one layer is present.

d. Transitional epithelia change in thickness depending on how full the bladder is.

The pleural cavity is a part of which cavity?

a. dorsal cavity

b. thoracic cavity

c. abdominal cavity

d. pericardial cavity

Multiple sclerosis is a debilitating autoimmune disease that results in the loss of the insulation around neuron axons. What cell type is the immune system attacking, and how does this disrupt the transfer of messages by the nervous system?

The part of a neuron that contains the nucleus is the

a. cell body

b. dendrite

c. axon

d. glial

Although most animals are bilaterally symmetrical, a few exhibit radial symmetry. What is an advantage of radial symmetry?

a. It confuses predators.

b. It allows the animal to gather food from all sides.

c. It allows the animal to undergo rapid, purposeful movement in any direction.

d. It lets an animal use its dorsal surface to sense its environment.
See all solutions

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