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35 Cards in this Set
- Front
- Back
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What is Life's basic characteristic?
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High degree of order
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What are the structural levels that life is organized into?
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Organism, Organ System, Organ, Tissue, Cellular, Organelle, Molecular and Atomic Level
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What are the 3 properties of water?
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- Able to form Hydrogen Bonds
- Small size - Polarity |
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What is adhesion and cohesion?
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Cohesion: The binding together of like molecules, often by hydrogen bonds
Adhesion: The attraction between different types of molecules |
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Name 4 characteristics of water
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1). It can exist in three phases under normal circumstances
2). It has adhesion and cohesion 3). Can absorb, store and release a great deal of heat without a large change in temperature, allowing it to regulate an organism, environment or the whole planet 4). It's the universal solvent. |
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What is a cell?
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The cell is the lowest level of structure that is capable of performing all the activities of life.
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What is an organism?
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Organisms are open systems that interact continuously with their environments
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Define: Emergent Properties
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New properties that arise with each step upward in the hierarchy
of life, owing to the arrangement and interactions of parts as complexity increases. |
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What is Reductionism?
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Reducing complex systems to simpler components
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What is Holism?
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That we only understand processes and organisms when we study them "in situ".
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Who discovered the Cell?
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Robert Hooke
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What are all cells enclosed with?
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A cell Membrane
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What do all cells contain?
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DNA (Deoxyribonucleic acid)
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What are the two major types of cells?
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Prokaryotic and Eukaryotic Cells
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What is DNA?
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DNA is the substance of genes. The units of inheritance that transimit information from parents to offspring.
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What is negative feedback?
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Slows or stops processes
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What is positive feedback?
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Positive feedback speeds up processes. (Rare)
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What is homeostasis?
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Steady-state regulation, keeping an internal factor within narrow limits.
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What are the 3 domains?
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Bacteria, Archaea, Eukarya
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Two main concepts in evolution?
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Evolution and Natural Selection
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What is Taxonomy?
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Taxonomy is the branch of Biology that names and classifies species into hierarchical order.
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What is the Scientific Method?
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Observe, Question, Hypothesize, Predict, Test
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Who discovered DNA?
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Watson and Crick
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What are the 10 unifying themes in Biology?
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Emergent Properties, The cell, Heritable information, Structure/Function, Regulation, Unity and Diversity, Evolution, Scientific Inquiry, Technology
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What is a biosphere?
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A biosphere is all of earth that is inhabited by life
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What is an ecosystem?
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An ecosystem includes all the living organisms and all the non living parts of the environment in which they interact.
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What is a community?
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A community consists of all the organisms inhabiting a particular area
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What is a population?
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A population includes the individuals of a single species in an area
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What is an organism?
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An organism is an individual living entity
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What are organs?
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They are found in more complex systems and perform life's functions
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What are tissues?
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Tissues are a collection of similar cells. Several tissues make up an organ
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What are cells?
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Cells are the fundamental unit of life
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What are organelles?
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Organelles are the functional components that make up cells
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What are molecules?
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Molecules are composed of two or more atoms. They are the chemical units of life.
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Define: Evolution
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Evolution explains the unity and diversity of life. All organisms are modified descendants of common ancestors.
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