Deck 17: Basic Tissues

Question 1

Which of the following epithelial cells are flat?

A) Simple squamous
B) Stratum basal
C) Stratum spinosum
D) Stratum germinativum

Answer 1

A
The word squamous means flat or platelike. Stratum spinosum cells, attached to cell walls by desmosomes, are star shaped. Stratum basale, also called stratum germinativum, is a single layer of cuboidal cells.

Question 2

Cellular inclusions are accurately described by each of the following EXCEPT one. Which one is the EXCEPTION?

A) They are not produced by the cell.
B) They are stored in the cell for use at a later time.
C) They may be composed of lipids and glycogen.
D) They contain solid rods that are composed of the protein actin.
E) Upon release they travel to other parts of the body.

Answer 2

D
Solid rods that are composed of actin are not cellular inclusions but are a component of muscle cells called microfilaments. Cellular inclusions are not produced by the cell but rather are stored for use at a later time and can be transported to other locations. The lipid component of cellular inclusions is actually small spheres of fat; the glycogen is composed of multiple units of the sugar glucose.

Question 3

Mitochondria are significantly responsible for metabolism because these organelles produce and regulate energy.

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but are NOT related.
C) The statement is correct, but the reason is NOT correct.
D) The statement is NOT correct, but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Answer 3

A
Small, unusually oblong organelles known as mitochondria are responsible for energy production and the rate at which a cell uses energy-commonly referred to as the metabolism of the cell.

Question 4

Purkinje's fibers are composed of specialized nerve cells. They conduct messages through the heart to help it contract properly.

A) Both statements are true.
B) The first statement is true; the second is false.
C) The first statement is false; the second is true.
D) Both statements are false.

Question 5

The nucleolus is a circumscribed area within the nucleus. The nucleolus controls the operation of the cell.

A) Both statements are true.
B) The first statement is true; the second is false.
C) The first statement is false; the second is true.
D) Both statements are false.

Question 6

Microfilaments are found in all cells.

Question 7

Which of the following are true of multilayered epithelia (select all that apply)?

A) Transitional epithelium changes in thickness and appearance as the need arises.
B) Stratified cuboidal epithelium is only found in select locations.
C) Stratified columnar epithelium is commonly found throughout the body.
D) Stratified squamous epithelium is the most common type of epithelium.

Question 8

Cells are able to maintain their shape because solid rods called microfilaments bind to the cell membrane as well as to other microfilaments.

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but are NOT related.
C) The statement is correct, but the reason is NOT correct.
D) The statement is NOT correct, but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Question 9

Cartilage is composed of each of the following EXCEPT one. Which is the EXCEPTION?

A) Chondroblasts
B) Chondrocytes
C) Collagen
D) Osteoblasts
E) Ground substance

Question 10

The cells that form the inner lining of blood vessels originate from the

A) Ectoderm
B) Entoderm
C) Mesoderm
D) Any of the above

Question 11

Which of the following are true of lysosomes (select all that apply)?

A) Lysosomes are cell scavengers.
B) Lysosomes contain enzymes that can consume the cell.
C) Lysosomes are cellular organelles.
D) They can digest foreign material.
E) Lysosomes produce energy.

Question 12

Hydroxyapatite crystals are packed into bone marrow, giving bone its hardness. These crystals are composed of calcium and phosphate, which make bone hard.

A) Both statements are true.
B) The first statement is true; the second is false.
C) The first statement is false; the second is true.
D) Both statements are false.

Question 13

Exocrine glands are considered ductless because although they secrete glandular products, their ducts are lost after development of the gland.

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but are NOT related.
C) The statement is correct, but the reason is NOT correct.
D) The statement is NOT correct, but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Question 14

The amnion is formed from the inner cell mass of the blastocyst.

Question 15

Epithelial cells that grow downward into the connective tissue from

A) Transitional epithelium
B) Blood vessels
C) Glands
D) Stratum granulosum

Question 16

An increase in cristae indicates _____ cell.

A) Foreign substances in the
B) Less mitochondria in the
C) A less active
D) A more active

Question 17

The protective wall of all cells is called the cell membrane. The fluid within the cell membrane is called plasma.

A) Both statements are true.
B) The first statement is true; the second is false.
C) The first statement is false; the second is true.
D) Both statements are false.

Question 18

Points of intracellular modifications that help hold cells together are called

A) Merocrine secretions
B) Desmosomes
C) Stratum spinosum
D) Basement membrane

Question 19

Cellular inclusions are not produced by the cell.

Question 20

The MOST common type of multiple-layered epithelium is stratified squamous epithelium. Stratified is synonymous with transitional.

A) Both statements are true.
B) The first statement is true; the second is false.
C) The first statement is false; the second is true.
D) Both statements are false.

Question 21

Bone resorption is involved in the process of bone remodeling.

Question 22

Cartilage is generally noncalcified.