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WorksheetsEXIT TICKET: Stem Cells in the Spotlight Webquest_3.13.25
Total questions: 19
Worksheet time: 10mins
What is the primary characteristic of stem cells that allows them to be used in regenerative medicine?
They can transform into a variety of specialized cells.
They are incapable of dividing.
They are already specialized with limited potential.
They are non-functional and dead.
A specialized cell cannot become any other type of cell.
It cannot; cell specialization is irreversible.
It can, by de-differentiation.
It can, via reprogramming under certain conditions.
It depends on the cell type.
Which stem cell type has the highest potential as therapy?
Embryonic (ES)
Somatic (Adult)
Induced Pluripotent (iPS)
Therapeutic Cloning
What are three sources of stem cells that can be used to treat blood-based diseases?
Bone marrow
Peripheral blood stem cells
Umbilical cord blood
Tissue engineers have also grown whole organs like kidneys and livers in animal models. Which organs have been grown in these animal models?
kidneys and livers
only kidneys
lungs and heart
hearts and lungs
Stem cells were first removed from embryos in ______.
1988
1998
2008
2018
Which statement best describes the federal stance on embryonic stem cell research in the U.S.?
Federal funding is allowed for embryonic stem cell research but with certain restrictions and guidelines.
Embryonic stem cell research is entirely prohibited by federal law.
There are no federal laws governing embryonic stem cell research.
Embryonic stem cell research is fully supported and funded without any restrictions.
Cancer, or tumors, can occur in various parts of the body.
They occur only in the brain.
They occur only in a single organ.
They can occur in any part of the body.
They occur only in the lungs.
Solid tumors form ______, while liquid tumors ______.
Solid tumors form masses, while liquid tumors flow freely in the blood.
Solid tumors form liquids, while liquid tumors form masses in the blood.
Solid tumors form clusters, while liquid tumors accumulate in the bone marrow.
Solid tumors form cysts, while liquid tumors coagulate in the vessels.
What is the initial cause of cancer development?
Genetic mutations in cells
Poor dietary habits
Viral infections
Radiation exposure
What percentage of cancers are believed to be due to genetic inheritance?
5%
10%
15%
20%
What is one consequence of accumulating mutations as we grow older?
Increased risk of cancer
Enhanced physical strength
Improved cognitive abilities
Decreased need for sleep
How or why do cancer cells grow?
They grow due to uncontrolled cell division resulting from genetic mutations.
They grow by following the normal cell cycle regulation.
They grow as part of a regulated and beneficial process.
They do not grow under any circumstances.
Cancer cells have to learn how to grow without ______.
growth signals
nutrients
oxygen
hormones
What is the term for the process where cells undergo a planned and controlled death?
Apoptosis
Necrosis
Autophagy
Senescence
How do cancer cells manage to sustain their growth and survival?
By absorbing nutrients and growth factors
By utilizing oxygen
By retaining water
By storing lipids
What cellular structure is associated with the regulation of cell division and aging?
Telomeres
Mitochondria
Cytoplasm
Nucleus
What role do telomeres play in maintaining chromosomal integrity, and what are the consequences of their shortening?
They are involved in protein synthesis and have no impact on chromosomal stability.
They protect chromosome ends from deterioration; their shortening can lead to genomic instability and potentially cancer.
They are responsible for energy production in cells.
They facilitate the attachment of chromosomes to the cell wall.
Telomerase enables cancer cells by lengthening their telomeres, which allows them to divide indefinitely. Which of the following best describes this mechanism?
It maintains telomere length to allow unlimited cell division.
It shortens telomeres, leading to cell death.
It stops cell division by reducing telomere length.
It triggers the immune system to destroy cancer cells.
