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What is the current understanding of how mitochondria and chloroplasts arose, and how has this knowledge evolved over time?
Mitochondria and chloroplasts are believed to have originated from ancient bacteria that were engulfed by early eukaryotic cells through a process called endosymbiosis. This theory, proposed by Lynn Margulis in the 1960s, suggests that these organelles were once independent organisms that formed a symbiotic relationship with their host cells. Over time, these organelles became integrated into the cells and evolved to perform specific functions, such as energy production in mitochondria and photosynthesis in chloroplasts. This theory has been supported by molecular and genetic evidence, and is now widely accepted in the scientific community.
What else can I help you with?
What types of cell are mitochondria found?
Eukaryotic cells have mitochondria (singular mitochondrion).
What is scientific evolution?
Scientific evolution is the evolution of scientific methodology through time; from the first attempts to derive knowledge about the world through observation, to the first formal approaches to do so structurally, including experimentation, to the current system of research and publication, which includes a formal scientific ethos.
What is your current availability?
My current availability is to have a stable company and stable job that I can work and learn more to the extent of my knowledge and availability
What is called a biological puzzle?
A biological puzzle is a scientific question or phenomenon that challenges our current understanding of biology, genetics, or evolution. It usually involves complex or unexpected observations that cannot be easily explained by existing theories or frameworks. Scientists investigate these puzzles to uncover new insights and expand our knowledge of the natural world.
How did cecilia payne help society?
Cecilia Payne was an astrophysicist who made significant contributions to our understanding of the composition of stars. Her work helped advance our knowledge of the universe and laid the groundwork for future generations of scientists to build upon. Payne's research has had a lasting impact on the field of astrophysics and has contributed to our broader understanding of the cosmos.
Why do animal cells not have chloraplast?
Chloroplasts (as well as Mitochondria) are endosymbionts. This means that they are cells, living within another cell. Historically, eukaryotic cells had no mitochondria or chloroplasts (and mitochondria and chloroplasts existed by themselves outside of cells). The current hypothesis is that a cell tried to engulf a mitochondria (by phagocytosis) but failed in digesting it. Over time, some of the mitochondrial DNA (mtDNA) became part of the host cell's genome. This cell is a common ancestor to both plants and animals, which is why both have mitochondria. A cell with mitochondria then did the same thing with chloroplasts, absorbing one, and taking some of its ctDNA etc. Because not all cells that had mitochondria absorbed chloroplasts there were cells with mitochondria only, and cells with mitochondria and chloroplasts. The ones with chloroplasts evolved to become plant cells, and those without evolved to become animal cells.
What do mitochondria have to do with obesity?
Mitochondria are present in the cells in the human body and convert oxygen and nutrients into what is essentially energy. One current theory is that some dysfunction of the mitochondria may be a factor contributing to obesity.
What do realtors need in order to successfully navigate the current housing market?
Realtors need a strong understanding of market trends, good communication skills, negotiation abilities, and knowledge of local regulations to successfully navigate the current housing market.
Can the product magnesium oxide be transformed back to magnesium ribbon and oxygen?
No once magnesium is burnt it becomes another element. It would require knowledge beyond our current understanding to do so.
Which do you enjoy more learning about ancient history or learning about current events?
I enjoy learning about both ancient history and current events, as they offer different perspectives on the world. Ancient history provides insights into past civilizations and how they shaped today's societies, while current events offer a real-time understanding of global issues and challenges. Both are valuable in broadening my knowledge and understanding of the world.
What is the significance of the history of chemistry book in understanding the development of scientific knowledge in the field of chemistry?
The history of chemistry book is significant in understanding the development of scientific knowledge in chemistry because it provides insights into the key discoveries, experiments, and theories that have shaped the field over time. By studying the historical progression of chemistry, researchers can gain a deeper appreciation for how ideas and concepts have evolved, leading to the current understanding of chemical principles and processes. This knowledge helps to contextualize modern advancements and innovations in chemistry, highlighting the interconnected nature of scientific progress.
When is a belief or practice said to be related to science and technology?
When it is rational and therefore based on current understanding. Doesn't mean it is always correct, so belief can change with changing scientific knowledge.
What do scientists do when new information become available in regards to current scientific understanding?
what do scientist do when new information become available in regrades to current scientific understanding
Why is it important to maintain a good working knowledge and understanding of current health and safety legislation?
It is only important to maintain a good working knowledge and understanding of current health and safety legislation if you are responsible for keeping a business , organization or employee group aware of what is being proposed in this area and of what is or may be required of them.
Asking the question What do I know helps you figure out your?
Type your answer here... prior knowledge.
What is rationale of the study?
The rationale of a study is the reason behind why the research is being conducted. It should explain the significance of the research question, outline gaps in current knowledge, and justify the need for the study to be conducted to advance scientific understanding.
What was Einstein most proud of?
Einstein was most proud of his theory of general relativity, which revolutionized our understanding of gravity and space-time. This theory has had a profound impact on modern physics and cosmology, shaping much of our current knowledge about the universe.
