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22 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are the six characteristics of life?
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1) Cellular Organization
2) DNA 3) Metabolism (ATP) 4) Growth 5) Response to Stimuli 6) Homeostasis |
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DNA stands for _____________?
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deoxyribonucleic acid
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The difference between catabolism and anabolism?
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catabolism - breaks large molec. into smaller, often accompanied by heat.
anabolism - synthesizes large molec. into smaller, often accompanied by heat. builds new protoplasm. Requires ATP. |
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What is ATP?
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ATP - Adenosine triphosphate. Energy-carrying molecule used to drive most energy-requiring reactions.
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What is homeostasis?
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Homeostasis - internal adjustments made to outside changes.
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What characteristics of life does fire lack?
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It doesn't have cellular organization.
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What are the levels of biological organization? (From complex to simple.)
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Biosphere
Biome Ecosystem Community Population Organism Organ System Organ Tissue Cell Organelle Macromolecule Molecule Atom Subatomic Particle |
B
B E C P Or Or S Or T C O Mac M A S-A P |
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What is a Prokaryotic Cell?
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A simple cell lacking a nucleus and membrane-bound organelles. Much smaller than eukaryotic cells.
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What is a Eukaryotic Cell?
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A cell with a membrane-bound nucleus and other organelles. At least ten times larger than prokaryotic cells.
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What does it mean to be motile?
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Able to initiate its own movement.
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What is an autotrophic organism?
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An organism that makes its own food. Includes photosynthesis.
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Plants
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What is an heterotrophic organism?
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An organism that obtains nutrients by consuming other organism or organic material.
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Humans
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What two domains have prokaryotic cells?
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Bacteria and archaea
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What type of bond holds hydrogen to oxygen?
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a polar covalent bond
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What type of bonding causes the water and other polar molecules to cling together?
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hydrogen bonds
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What water property means that water sticks to water?
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cohesion
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What does hydrophilic mean?
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water-loving
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What does hydrophobic mean?
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water-hating
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What is it called when water clings to the side of a beaker?
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adhesion
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What is the relationship between pH and H+ concentration?
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the more H+, the more acidic
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Why does ice float?
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because the molecules are further apart
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What happens during primary?
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Archaea break down and detoxify solid particles.
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