Which experiments led to changes to the original cell theory?

Question

experiments that showed that blood cells transport gases, waste, and nutrients throughout the body
experiments that showed that all cells are similar in how they metabolize and in their composition
experiments that transplanted synthetic chromosomes into bacterial cells to create a new species
experiments that established the existence of single-celled organisms and microbes

Answer 1

The experiments that led to changes to the original cell theory include:

1. Experiments that showed that blood cells transport gases, waste, and nutrients throughout the body: These experiments provided evidence that cells can have specialized functions and are not all identical as proposed in the original cell theory.

2. Experiments that showed that all cells are similar in how they metabolize and in their composition: These experiments revealed that cells share certain metabolic processes and have common structures, suggesting a fundamental similarity among different types of cells.

3. Experiments that transplanted synthetic chromosomes into bacterial cells to create a new species: These experiments demonstrated that genetic material can be manipulated and transferred between cells, challenging the notion that cells arise solely from pre-existing cells as stated in the original cell theory.

4. Experiments that established the existence of single-celled organisms and microbes: These experiments provided evidence for the existence of cells that are not part of multicellular organisms, thus expanding the understanding of the diversity and complexity of cell types beyond what was initially proposed in the original cell theory.