Endosymbiotic Theory

What is the main function of mitochondria in a cell?

• Produce energy (ATP) through cellular respiration

• Help in photosynthesis

• Store genetic information

• Regulate cell division

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Which organelle is responsible for photosynthesis in plant cells?

• Nucleus

• Endoplasmic reticulum

• Mitochondria

• Chloroplasts

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What is endosymbiosis?

• Endosymbiosis is a process where organisms compete for resources.

• Endosymbiosis is a process where one organism consumes another for survival.

• Endosymbiosis is a process where organisms live independently without any interaction.

• Endosymbiosis is a process in which one organism lives inside another and both benefit from the relationship.

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What type of cells are believed to be the ancestors of mitochondria and chloroplasts?

• Prokaryotic cells

• Plant cells

• Eukaryotic cells

• Animal cells

What is one piece of evidence supporting the endosymbiotic theory?

• Absence of membrane-bound organelles in prokaryotic cells

• Presence of double membrane-bound organelles in eukaryotic cells

• Lack of genetic material in organelles

• Presence of triple membrane-bound organelles in eukaryotic cells

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How does taxonomy classify organisms based on the endosymbiotic theory?

• By studying the behavior and interactions of organisms.

• By analyzing differences in cellular structures and genetic sequences among organisms.

• By examining the geographical distribution of organisms.

• By analyzing similarities in cellular structures and genetic sequences among organisms.

What is the difference between asexual and sexual reproduction?

• The difference lies in the color of the offspring

• Asexual reproduction involves plants only, while sexual reproduction involves animals

• Sexual reproduction occurs in the winter, while asexual reproduction occurs in the summer

• The main difference is the number of parents involved and the genetic diversity of the offspring.

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How do eukaryotic cells differ from prokaryotic cells?

• Eukaryotic cells lack a true nucleus and membrane-bound organelles.

• Prokaryotic cells have a true nucleus and membrane-bound organelles.

• Eukaryotic cells have a true nucleus and membrane-bound organelles, while prokaryotic cells lack a true nucleus and membrane-bound organelles.

• Prokaryotic cells have membrane-bound organelles.

Explain the concept of mutualistic relationships in the context of endosymbiosis.

• Mutualistic relationships in endosymbiosis involve one organism living inside another, providing essential functions in exchange for a stable environment.

• Mutualistic relationships in endosymbiosis do not involve any exchange of benefits between organisms.

• Mutualistic relationships involve competition between organisms in endosymbiosis.

• Endosymbiosis is a parasitic relationship where one organism benefits at the expense of the other.

What role do mitochondria play in cellular respiration?

• Mitochondria are responsible for protein synthesis

• Mitochondria help in maintaining cell shape

• Mitochondria play a crucial role in generating ATP through cellular respiration.

• Mitochondria play a role in photosynthesis

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