Upgrade to remove ads
Only $35.99/year

EXAM 1 QUESTIONS

Terms in this set (30)

in certain kinds of muscle cells, calcium ions are stored in
A. the rough ER
B. the smooth ER
C. both smooth and rough ER
D. the cytoplasm
B
The RNA responsible for bringing the amino acids to the "factory" site for protein formation is
A. ssRNA
B. rRNA
C. tRNA
D. mRNA
C
A red blood cell placed in pure water would
A. swell and burst
B. neither shrink nor swell
C. shrink
D. swell initially, then shrink
A
Which structures are fingerlike projections that greatly increase the absorbing surface of cells?
A. cilia
B. microvilli
C. stereocilia
D. flagella
B
Which of the following statements is correct regarding diffusion?
A. The greater the concentration of gradient, the faster the rate of diffusion.
B. The rate of diffusion is independent of temperature.
C. The lower the temperature, the faster the diffusion rate
D. Molecular weight of a substance does not affect the rate of diffusion.
A
Cell junctions that promote the coordinated activity of cells by physically binding them together into a cell community include all of the following except
A. desmosomes
B. tight junctions
C. peroxisomes
D. gap junctions
C
Riboswitches are folded RNAs that act as switches to turn protein synthesis on or off in response to
A. the presence or absence of ubiquitins
B. specific tRNAs
C. changes in the environment
D. specific codes from the DNA
...
Which of the following is a function of a plasma membrane protein?
A. molecular transport through the membrane
B. forms a lipid bilayer
C. oxygen transport
D. circulating antibody
A
Which of the following would not be a constituent of a plasma membrane?
A. phospholipids
B. messenger RNA
C. glycolipids
D. glycoproteins
B
Mitosis
A. is the formation of sex cells
B. produces nucleus replications
C. always results in division of a cell
D. creates diversity in genetic potential
B
Which of the following is NOT found in cartilage but is found in bone?

1)

lacunae

2)

living cells

3)

blood vessels

4)

organic fibers
3
The reason that intervertebral discs exhibit a large amount of tensile strength, which allows them to absorb shock, is because they possess ________.

1)

reticular fibers

2)

elastic fibers

3)

collagen fibers

4)

hydroxyapatite crystals
3
What tissue has lacunae, calcium salts, and blood vessels?

1)

areolar tissue

2)

fibrocartilaginous tissue

3)

cartilage tissue

4)

bone (osseous tissue)
4
The primary blast cell for connective tissue proper is the ________.

1)

chondroblast

2)

fibroblast

3)

hemocytoblast

4)

osteoblast
2
Which of the following is a modification of the simple columnar epithelium that allows for efficient absorption along portions of the digestive tract?

1)

dense microvilli

2)

fibroblasts

3)

thin and permeable

4)

cilia
1
Which of the following epithelia forms the walls of the air sacs across which gas exchange occurs in the lungs?

1)

simple cuboidal

2)

simple squamous

3)

pseudostratified columnar

4)

simple columnar
2
Which statement best describes connective tissue?

1)

usually contains a large amount of matrix

2)

usually lines a body cavity

3)

primarily concerned with secretion

4)

typically arranged in a single layer of cells
1
The fiber type that gives connective tissue great tensile strength is ________.

1)

reticular

2)

muscle

3)

elastic

4)

collagen
4
The shape of the external ear is maintained by ________.

1)

adipose tissue

2)

elastic cartilage

3)

hyaline cartilage

4)

fibrocartilage
2
Inability to absorb digested nutrients and secrete mucus might indicate a disorder in which epithelial tissue?

1)

transitional

2)

simple columnar

3)

simple squamous

4)

stratified squamous
2
Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as ________.

1)

endocrine

2)

exocrine

3)

sebaceous

4)

ceruminous
1
________ epithelium appears to have two or three layers of cells, but all the cells are in contact with the basement membrane.

1)

Transitional

2)

Stratified cuboidal

3)

Stratified columnar

4)

Pseudostratified columnar
4
Edema (swelling) occurs when ________.

1)

reticular connective tissue invades the area

2)

adipose cells enlarge by pinocytosis

3)

collagen fibers enlarge as they change from dehydrated to hydrated shape

4)

areolar tissue soaks up excess fluid in an inflamed area
4
Which of the following is true about the mode of secretion of exocrine glands?

1)

Holocrine cells are slightly damaged by the secretory process, but repair themselves.

2)

Merocrine glands are not altered by the secretory process.

3)

These glands are ductless.

4)

Apocrine cells are destroyed, then replaced, after secretion.
2
Arteries, veins, and lymphatics keep clots from sticking as long as their ________ is intact and healthy.

1)

endothelium

2)

mesothelium

3)

transitional epithelium

4)

simple cuboidal epithelium
1
The first step in tissue repair involves ________.

1)

inflammation

2)

replacement of destroyed tissue by the same kind of cells

3)

proliferation of fibrous connective tissue

4)

formation of scar tissue
1
Which tissue type is formed by many cells joining together, each contributing a nucleus?

1)

dense regular

2)

cardiac muscle

3)

skeletal muscle

4)

smooth muscle
3
Choose which tissue would line the uterine (fallopian) tubes and function as a "conveyer belt" to help move a fertilized egg towards the uterus.

1)

ciliated simple columnar epithelium

2)

stratified squamous epithelium

3)

smooth muscle

4)

simple cuboidal epithelium
1
Which tissue in the wall of the uterus is required for labor contractions?

1)

smooth muscle

2)

skeletal muscle

3)

elastic cartilage

4)

stratified squamous
1
The salivary glands are a good example of a(n) ________ exocrine gland.

1)

compound alveolar

2)

compound tubuloalveolar

3)

simple branched alveolar

4)

compound tubular
2
Other sets by this creator