ASSESSMENT WALDEN UNIVERSITY QUESTIONS WITH
COMPLETE SOLUTIONS 2025/2026
Programmed cell death is an active process of cellular self-destruction. It is also
referred to as a. apoptosis
b. necrosis
c. metastatic calcification
d. gangrene - ANSWER - >Apoptosis
The nucleolus is a small dense structure composed mainly of RNA and cellular DNA.
What causes the DNA to bind and fold into chromosomes?
a. amino acid sequences
b. histones
c. polymerase
d. miRNA - ANSWER - >Histones
Duchenne's Muscular Dystrophy is never transmitted from father to son. It is a good
example of
a. sex-linked recessive disease
b. autosomal dominant disease
c. x-linked recessive disease
d. chromosome structure abnormality disease - ANSWER - >x-linked recessive disease
Which cell is the body's primary defense against parasite invasion?
a. t lymphocytes
b. neutrophils
c. eosinophils
d. b lymphocytes - ANSWER - >Eosinophils
Which pathway in the complement system is activated by an antigen-antibody
response?
a. lectin
b. classic
c. alternative
d. none of the above - ANSWER - >classic
,The hallmark of AIDS profound immunosuppression, results from:
a. proper function of helper t cells
b. infection of b cells
c. severe loss of CD4 Th cells
d. none of the above - ANSWER - >severe loss of CD4 Th cells
These are proteins released by bacteria during growth. a.
endotoxins
b. TNF
c. exotoxins
d. pili - ANSWER - >exotoxins
Activation of the complement cascade may destroy pathogens directly and can activate
with virtually every other component of the inflammatory response.
True/False - ANSWER -
>True
Considering the hypothalamus, a fever is produced by:
A) endogenous pyrogen acting directly on the hypothalamus
B) exogenous pyrogens acting directly on the hypothalamus
C) immune complexes acting indirectly on the hypothalamus
D) cytokines acting indirectly on the hypothalamus - ANSWER - >Ans: A- endogenous
pyrogen acting directly on the hypothalamus
One of the leading causes of death in the intensive care unit is the release of sufficient
amounts of endotoxin resulting in endotoxic (septic) shock. The most common cause is:
a. cachectin
b. fungi
c. gram-positive bacteria
d. gram-negative bacteria - ANSWER - >gram-negative bacteria
The most common cause of fungal infections in humans are a.
staphylococcus
b. candida albicans
c. gram-negative bacteria
d. salmonella - ANSWER - >candida albicans
Which one of the childhood cancers is associated with the tumor suppressor genes?
a. wilms tumor
b. acute leukemia
c. cerebellar hemagioblastoma
d. testicular tumor - ANSWER - >wilms tumor
, Leukemia refers to abnormal cell proliferation originating from which tissue origin? a.
connective tissue
b. epithelial cells
c. glandular tissue
d. blood-forming cells - ANSWER - >blood-forming cells
Two "hits" are required to inactivate tumor-suppressor genes because:
A) each allele must be altered and each person has two copies, or alleles, of e ach
gene, one from each parent
B) the first hit stops tissue growth and the second hit is needed to cause abnormal
tissue growth
C) tumor-suppressor genes are larger than proto-oncogenes, requiring two hits to
effect carcinogenesis
D) the first hit is insufficient to cause enough damage to cause a mutation -
ANSWER - >Ans: A- each allele must be altered and each person has two copies, o r
alleles, of each gene, one from each parent
Which of the following cancers originate from connective tissue? a.
adenocarcinoma
b. multiple myeloma
c. basal cell carcinoma
d. osteogenic sarcoma - ANSWER - >osteogenic sarcoma
What is the skin-related health risk induced by some types of chemotherapy?
A) infection
B) ultraviolet damage
C) pain
D) erythema - ANSWER - >Ans: A- infection
Oncogenes are genes that:
a. Encode proteins that negatively regulate the synthesis of proteins to slow or halt
replacement of tissue
b. Direct synthesis of proteins to regulate growth and provide necessary
replacement of tissue c. Have undergone mutation to direct malignant tissue toward
blood vessels and lymph nodes for metastasis
d. Have undergone mutation that direct the synthesis of protein to accelerate the rate of
tissue proliferation - ANSWER - >Have undergone mutation that direct the synthesis o f
protein to accelerate the rate of tissue proliferation
Reflex activities concerned with heart rate, blood pressure, respirations, sneezing,