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Cell Physiology and Cancer Disturbance

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Questions and Answers

What is the normal physiologic process involved in cell proliferation?

Response to injury

Replacement of dead cells (correct)

Immune response

None of the above

What maintains the balance between cell proliferation and programmed cell death?

Apoptosis (correct)

Intracellular signals

Growth signals

Membrane-bound glycoprotein receptors

What triggers cell division in healthy cells?

Intracellular signals

Receptors

Membrane-bound glycoprotein receptors

Growth factors (correct)

Which type of cells are constantly subject to signals that dictate their behavior?

Healthy cells Signup and view all the answers

What are membrane-bound glycoprotein receptors responsible for?

Transmitting messages Signup and view all the answers

What are growth factors responsible for stimulating?

Cell proliferation Signup and view all the answers

Which of the following best describes the formation of cancer?

Cancer cells develop from normal cells that undergo uncontrolled growth and proliferation Signup and view all the answers

What is the role of proto-oncogenes in cancer development?

They cause stimulatory proteins to be overactive, leading to excessive cell proliferation Signup and view all the answers

What is the function of tumor suppressor genes?

They slow down cell division or tell cells to die at the right time Signup and view all the answers

What is the significance of TP53 in relation to cancer?

It is an important tumor suppressor gene that helps keep cell division under control Signup and view all the answers

How do viruses replicate?

Viruses use components of the cell to make copies of themselves Signup and view all the answers

What is the structure of a virus particle?

Genetic material surrounded by a protective coat of protein called a capsid Signup and view all the answers

What is the result of mutations in genes that regulate cell division?

Uncontrolled cell proliferation and cancer Signup and view all the answers

How do cancer cells differ from normal cells?

Cancer cells undergo uncontrolled growth and proliferation Signup and view all the answers

What causes cancer progression?

Aging, inherited mutations (Genetics), immune conditions Signup and view all the answers

What characterizes metastasis in cancer?

Cancer cells break away and form new tumors in other parts of the body Signup and view all the answers