2/14 warm-up

What is the main characteristic of totipotent stem cells?

• They can only become muscle cells.

• They can develop into any cell type, including extra-embryonic tissues.

• They are limited to becoming blood cells.

• They can only become nerve cells.

Which type of stem cell can differentiate into almost any cell type, but not extra-embryonic tissues?

• Totipotent

• Pluripotent

• Multipotent

• Unipotent

What is the primary difference between pluripotent and multipotent stem cells?

• Pluripotent cells can become any cell type, while multipotent cells are limited to a specific lineage.

• Multipotent cells can become any cell type, while pluripotent cells are limited to a specific lineage.

• Both can become any cell type.

• Neither can become any cell type.

During cellular differentiation, what happens to a cell?

• It divides into two identical cells.

• It changes into a more specialized cell type.

• It becomes a stem cell.

• It dies.

Which of the following is a characteristic of unicellular organisms?

• They are made up of multiple cells.

• They perform all life processes within a single cell.

• They have specialized tissues.

• They cannot survive independently.

How do multicellular organisms differ from unicellular organisms in terms of cellular organization?

• Multicellular organisms have specialized cells for different functions.

• Multicellular organisms are made of a single cell.

• Unicellular organisms have specialized cells for different functions.

• Unicellular organisms are made of multiple cells.

Why are model organisms important in biological research?

• They are too complex to study.

• They provide insights into human biology due to their simplicity and genetic similarities.

• They are not related to humans at all.

• They are only used for entertainment.

What is the significance of cellular differentiation in multicellular organisms?

• It allows cells to become less specialized.

• It enables the formation of specialized tissues and organs.

• It prevents cells from functioning.

• It causes cells to die.

Which of the following best describes the role of stem cells in the body?

• They are only found in plants.

• They have the potential to develop into different cell types.

• They cannot divide.

• They are only used for energy storage.

Which process is essential for the development of a multicellular organism from a single fertilized egg?

• Cellular differentiation

• Photosynthesis

• Respiration

• Evaporation