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Who is credited with the statement 'All living things are composed of cells and cell products'?
Who is credited with the statement 'All living things are composed of cells and cell products'?
What is the genetic information stored as in cells?
What is the genetic information stored as in cells?
Who proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells)?
Who proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells)?
What is the fundamental unit of all living things on earth?
What is the fundamental unit of all living things on earth?
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What is the academic discipline of defining groups of biological organisms on the basis of shared characteristics?
What is the academic discipline of defining groups of biological organisms on the basis of shared characteristics?
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According to the text, what is the study of evolutionary relationships among groups of organisms?
According to the text, what is the study of evolutionary relationships among groups of organisms?
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What do all cells store their hereditary information as, based on the text?
What do all cells store their hereditary information as, based on the text?
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What is the ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes called?
What is the ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes called?
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What are the levels of homeostasis mentioned in the text?
What are the levels of homeostasis mentioned in the text?
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According to the text, what is considered as one interrelated system in the biosphere?
According to the text, what is considered as one interrelated system in the biosphere?
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What did Rudolf Schoenheimer refer to when he mentioned 'steady state of rapid flux'?
What did Rudolf Schoenheimer refer to when he mentioned 'steady state of rapid flux'?
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What does 98% of the human body undergo in one year based on data from Garlick et al.?
What does 98% of the human body undergo in one year based on data from Garlick et al.?
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What is the process by which cells divide and die called?
What is the process by which cells divide and die called?
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What is the maintenance of subcellular structures and proper distribution of organelle-specific proteins called?
What is the maintenance of subcellular structures and proper distribution of organelle-specific proteins called?
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What does life represent according to Rudolf Schoenheimer?
What does life represent according to Rudolf Schoenheimer?
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Where do global cycles between atmosphere, oceans, rocks, and living organisms take place according to the text?
Where do global cycles between atmosphere, oceans, rocks, and living organisms take place according to the text?
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What is the approximate size of a Mycoplasma genitalium cell?
What is the approximate size of a Mycoplasma genitalium cell?
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Who proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells)?
Who proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells)?
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What is the main genetic information stored as in cells?
What is the main genetic information stored as in cells?
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Who is credited with the statement 'All living things are composed of cells and cell products'?
Who is credited with the statement 'All living things are composed of cells and cell products'?
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What is the term for the academic discipline of defining groups of biological organisms on the basis of shared characteristics?
What is the term for the academic discipline of defining groups of biological organisms on the basis of shared characteristics?
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What is the study of evolutionary relationships among groups of organisms called?
What is the study of evolutionary relationships among groups of organisms called?
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What is the term for the ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes?
What is the term for the ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes?
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According to the text, where do global cycles between atmosphere, oceans, rocks, and living organisms take place?
According to the text, where do global cycles between atmosphere, oceans, rocks, and living organisms take place?
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What did Rudolf Schoenheimer refer to when he mentioned 'steady state of rapid flux'?
What did Rudolf Schoenheimer refer to when he mentioned 'steady state of rapid flux'?
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What is the level of homeostasis related to maintenance of subcellular structures; proper distribution of organelle-specific proteins, lipids etc. called?
What is the level of homeostasis related to maintenance of subcellular structures; proper distribution of organelle-specific proteins, lipids etc. called?
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What do all cells store their hereditary information as, based on the text?
What do all cells store their hereditary information as, based on the text?
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What is the process by which cells divide and die called?
What is the process by which cells divide and die called?
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Who proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells)?
Who proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells)?
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What is considered as one interrelated system in the biosphere according to the text?
What is considered as one interrelated system in the biosphere according to the text?
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What are the levels of homeostasis mentioned in the text?
What are the levels of homeostasis mentioned in the text?
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What does life represent according to Rudolf Schoenheimer?
What does life represent according to Rudolf Schoenheimer?
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What is the approximate size of an ostrich egg cell?
What is the approximate size of an ostrich egg cell?
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Who is credited with the statement 'All living things are composed of cells and cell products'?
Who is credited with the statement 'All living things are composed of cells and cell products'?
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What is the size of a small cell like Mycoplasma genitalium?
What is the size of a small cell like Mycoplasma genitalium?
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Who first observed cells under a microscope in 1665?
Who first observed cells under a microscope in 1665?
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What is the term for the process by which cells translate RNA into protein?
What is the term for the process by which cells translate RNA into protein?
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Which academic discipline defines groups of biological organisms on the basis of shared characteristics?
Which academic discipline defines groups of biological organisms on the basis of shared characteristics?
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What is the approximate size of a Mycoplasma genitalium cell?
What is the approximate size of a Mycoplasma genitalium cell?
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What is the study of evolutionary relationships among groups of organisms called?
What is the study of evolutionary relationships among groups of organisms called?
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Who proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells)?
Who proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells)?
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What did Rudolf Schoenheimer refer to when he mentioned 'steady state of rapid flux'?
What did Rudolf Schoenheimer refer to when he mentioned 'steady state of rapid flux'?
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Where do global cycles between atmosphere, oceans, rocks, and living organisms take place according to the text?
Where do global cycles between atmosphere, oceans, rocks, and living organisms take place according to the text?
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What does life represent according to Rudolf Schoenheimer?
What does life represent according to Rudolf Schoenheimer?
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What is considered as one interrelated system in the biosphere according to the text?
What is considered as one interrelated system in the biosphere according to the text?
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What does 98% of the human body undergo in one year based on data from Garlick et al.?
What does 98% of the human body undergo in one year based on data from Garlick et al.?
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What is the fundamental unit of all living things on earth?
What is the fundamental unit of all living things on earth?
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What is the process by which cells divide and die called?
What is the process by which cells divide and die called?
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Study Notes
Cell Biology
- All living things are composed of cells and cell products, credited to Rudolf Virchow.
- The genetic information is stored as DNA in cells.
- Rudolf Virchow proposed the concept 'Omnis Cellula e Cellula' (All cells arise from pre-existing cells).
- Cells are the fundamental unit of all living things on earth.
Taxonomy
- Taxonomy is the academic discipline of defining groups of biological organisms on the basis of shared characteristics.
Evolutionary Relationships
- Phylogeny is the study of evolutionary relationships among groups of organisms.
Homeostasis
- Homeostasis is the ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes.
- The levels of homeostasis mentioned are: organismal, cellular, and subcellular.
Cellular Processes
- Apoptosis is the process by which cells divide and die.
- Maintenance of subcellular structures and proper distribution of organelle-specific proteins, lipids, etc. is called organelle homeostasis.
Cellular Structure
- A Mycoplasma genitalium cell is approximately 200-300 nm in size.
Rudolf Schoenheimer
- Rudolf Schoenheimer referred to the 'steady state of rapid flux', which represents life as a dynamic equilibrium.
- According to Schoenheimer, life represents a dynamic equilibrium where components are constantly being replaced.
Global Cycles
- Global cycles between atmosphere, oceans, rocks, and living organisms take place in the biosphere.
Historical Context
- Robert Hooke first observed cells under a microscope in 1665.
- The process by which cells translate RNA into protein is called translation.
- 98% of the human body undergoes replacement in one year based on data from Garlick et al.
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Description
Test your understanding of the fundamental concepts related to the living cell, including its definition, history, universal features, evolution, organelles, metabolism, and more.
