Podcast
Questions and Answers
Which of the following characteristics is true for prokaryotes?
Which of the following characteristics is true for prokaryotes?
What is a key disadvantage of asexual reproduction?
What is a key disadvantage of asexual reproduction?
What distinguishes eukaryotic cells from prokaryotic cells?
What distinguishes eukaryotic cells from prokaryotic cells?
Which method of asexual reproduction involves the development of a small outgrowth on a parent organism?
Which method of asexual reproduction involves the development of a small outgrowth on a parent organism?
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Which of the following statements is accurate regarding the size of prokaryotes compared to eukaryotes?
Which of the following statements is accurate regarding the size of prokaryotes compared to eukaryotes?
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Study Notes
Cell Size and Reproduction
- Eukaryotic cells posses a nucleus, ranging in size from 10-100 micrometers
- Prokaryotic cells lack a nucleus, ranging in size from 1-10 micrometers
- Cell size is limited; cells must divide when they reach a certain size to maintain an adequate surface area to volume ratio for nutrient intake and waste removal.
Asexual Reproduction
- Asexual reproduction involves only one parent and produces offspring genetically identical to the parent.
- Methods of asexual reproduction include:
- Binary Fission: A single cell replicates its DNA and splits into two identical cells. Examples include bacteria.
- Budding: A small outgrowth arises from the parent organism and eventually detaches to become a new organism. Examples include yeast and hydra.
- Fragmentation: An organism breaks into multiple pieces, each of which can grow a new organism. Examples include starfish.
- Vegetative Propagation: New plants grow from parts of the parent plant (stems, leaves, roots). Examples include potatoes and strawberries.
Advantages and Disadvantages of Asexual Reproduction
- Advantages: Rapid reproduction, energy efficient, no need for a mate.
- Disadvantages: Little genetic diversity, which makes the species less adaptable to environmental changes.
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Description
This quiz explores the concepts of cell size and various methods of asexual reproduction. It covers differences between eukaryotic and prokaryotic cells, and details methods such as binary fission, budding, fragmentation, and vegetative propagation. Test your understanding of these fundamental biological processes.
