Which experiments led to changes to the original cell theory?
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
The experiments that established the existence of single-celled organisms and microbes led to changes in the original cell theory.
The experiments that led to changes in the original cell theory are:
1. Experiments that showed that blood cells transport gases, waste, and nutrients throughout the body: These experiments demonstrated that cells have specific functions and can specialize in different tasks within an organism. This challenged the original cell theory, which stated that cells are all similar in function.
2. Experiments that showed that all cells are similar in how they metabolize and in their composition: These experiments led to the understanding that all cells, despite their differences in structure and function, follow similar metabolic processes and have common building blocks. This reinforced the idea that cells are the basic units of life.
3. Experiments that transplanted synthetic chromosomes into bacterial cells to create a new species: This experiment challenged the notion that cells can only arise from pre-existing cells. By creating a new species of bacteria with synthetic DNA, it showed that genetic material can be artificially manipulated and introduced into cells, leading to changes in the original cell theory.
4. Experiments that established the existence of single-celled organisms and microbes: These experiments revealed the presence of organisms that consist of only one cell. Prior to these findings, the original cell theory held that all organisms are made up of multiple cells. The discovery of single-celled organisms expanded our understanding of cellular organization and the diversity of life.