Answers Latest Version Already Passed
Which of the following is the primary function of cellular regulation?
a) To initiate inflammation
b) To maintain the structural integrity of the cell
✔✔c) To control cell growth, division, and death
d) To store genetic information
What process is responsible for the cell's ability to replicate and divide?
✔✔a) Mitosis
b) Apoptosis
c) Endocytosis
d) Necrosis
Which stage of the cell cycle involves DNA replication?
a) G1 phase
✔✔b) S phase
c) G2 phase
1
,d) M phase
Which of the following is a characteristic of a cancerous cell in terms of cellular regulation?
a) Controlled cell division
b) Proper apoptosis
✔✔c) Uncontrolled cell division and resistance to cell death
d) No genetic mutations
What is the role of cyclins in the cell cycle?
a) To break down proteins
✔✔b) To regulate the progression of the cell cycle
c) To carry out cellular respiration
d) To aid in the synthesis of DNA
Which gene is known as the "guardian of the genome" due to its role in preventing cancer?
a) Ras gene
b) HER2 gene
✔✔c) p53 gene
2
,d) BCL-2 gene
Which term refers to the programmed cell death process that is crucial for cellular regulation?
a) Necrosis
✔✔b) Apoptosis
c) Mitosis
d) Metastasis
What is the result of a mutation in proto-oncogenes?
a) Reduced cell division
b) Increased apoptosis
✔✔c) Activation of oncogenes, leading to uncontrolled cell growth
d) Enhanced DNA repair
What role do tumor suppressor genes play in cellular regulation?
a) They promote the formation of tumors
✔✔b) They inhibit cell division and promote apoptosis
c) They increase cellular metabolism
3
, d) They stimulate the production of cyclins
Which process is characterized by the abnormal, uncontrolled division of cells that often leads to
cancer?
a) Mitosis
✔✔b) Tumorigenesis
c) Apoptosis
d) Differentiation
What is the function of the mitotic checkpoint during the cell cycle?
✔✔a) To ensure that the chromosomes are properly aligned before division
b) To replicate the DNA
c) To prepare the cell for apoptosis
d) To promote cell differentiation
Which of the following is a hallmark of cancer in terms of cellular regulation?
a) Sensitivity to growth signals
b) Increased apoptosis
4