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22 Cards in this Set
- Front
- Back
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Cell |
Smallest, most basic unit of life (1) made of nonliving atoms and molecules (2) majority of living things are unicellular |
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Levels Of organization in multicellular organisms |
(1) composed of different cell types specialized for different functions (2) example: Tissues Organs Organ system Organism |
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Levels of organization beyond the organism |
(1) Population Community Ecosystem Biosphere |
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All species living in a specific area are known as: |
Population |
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Organisms of the same living in the same area are known as: |
Community |
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What is the term that refers to all of the chemical reactions that occur in a living organism? |
Metabolism |
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The maintenance of internal conditions different from those of the surrounding environment is known as: |
Homeostasis |
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Name the three domains of life: |
Bacteria (prokaryotic cells) Archaea (no nucleus) Eukarya (eukaryotic cells (nucleus)) |
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What is the Genus for humans? What is the species (specific epithet) for humans? |
Homo sapiens |
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What are the two central tenets of the Cell Theory? |
(1) all living things are made of cells (2) all cells come from existing cells |
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What is the main difference between prokaryotic cells and eukaryotic cells? |
Prokaryotic cells have no nucleus Eukaryotic cells have a nucleus |
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Why are cells so small? |
Gain surface area with smaller size Entry and exit easier |
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Basic Necessities |
(1) Nutrients from food - building blocks of molecules and source of energy (2) Energy - capacity to do work (of maintaining complex organization of life) |
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Metabolism |
All of the chemical reactions that occur in a living thing. (1) building molecules (requires energy) (2) breaking down molecules (releases energy available) |
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Sun |
Ultimate source of energy |
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Producers |
Carry out photosynthesis (Take in solar energy and inorganic nutrients) (Make food) organic nutrients |
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Chemical cycling |
Chemicals move from one population to another until death and decomposition return inorganic nutrients to producers. |
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Energy |
(a) moves from producers through levels of consumers (b) used to do work and dissipates as heat (c) does not cycle - must be continually supplied by sun and captured by photosynthesis |
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Living Organism Respond |
A. Organisms must interact with environment to find energy and/or nutrients. B. Being able to sense stimuli and respond is critical to staying alive. |
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Asexual |
1 parent, produces replicas |
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Sexual |
2 parents, produces variation |
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4 categories of organelles |
1. Nucleus and ribosomes 2. Endomembrane system 3. Cytoskeleton 4. Energy related |
