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45 Cards in this Set
- Front
- Back
Metabolism
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*All the chemical reactions in an organism
-in multicellular organisms different cells capable of performing different tasks. -different parts perform different jobs. -but all of the work gets done. |
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Autotrophs
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-an organism capable of living exclusively on inorganic materials, water and some source of sunlight of chemically
-turn simple inorganic compunds into complex organic compounds. -if don't use sunlight but reduce molecules for energy source. -(chemosynythesis) |
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Heterotrophs
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-can't live without autotrophs
-requires organic material from autotrophs for respiration (break down of sugars). |
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Catabolism
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*Break down reactions
-energy released -break covalent bonds between atoms. |
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Anabolism
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*Build up reactions
-synthesis from broken down materials -require an energy imput. |
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ingestion
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taking in of needed molecules
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transportation
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the movement of molecules in an organism
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assimilation
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absorption of molecules
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digestion
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tearing down of molecules
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excrete
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get rid of wastes
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Photosynthesis
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-reverse reation of cellular respiration
-builds sugars from carbon dioxide -basis of physical wealth on the planet-builds biomass |
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asexual
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mitosis exact duplication
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sexual
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uniting of sex gametes within species leads to more biological variation
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determination
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related to DNA gene regulation
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differentiation
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morphological changes to suit function
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growth
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increase in the size and the number of cells
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death
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loss of cells
-can be programmed genetically |
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atoms
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-C, N O, H, P, ect.
-the simplest form an "element" can take and still have its properties |
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Molecules
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two or more atoms joined together in a specific ratio and can be divided into two groups
-organic -inorganic |
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organic
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-based on carbon and hydrogen atoms
-ex: carbs, proteins, fats, crude oil, nucleic acids ect. |
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inorganic
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-not composed of carbon and hydrogen atoms
-ex: carbon dioxide, water, nitric acid, sulfur dioxide |
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cells
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*the basic unit of organic (carbon based) life
-many types but basic style is same (modification according to function) -single cell can perform all life functions: capable of independent existence and reproduction -cellular level consists of surrounding fluid (extracellular fluid) -many organisms are sigle celled called "microorganisms" |
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Tissue
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-a set of cells that function in the same way
-animal tissure types-epithelium, connective, muscle, and nerve |
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Organ
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multiple tissure area that performs one function
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Organ system
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a group of organs that perform a single job
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organism
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any complete living thing
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species
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individuals capable of interbreeding freely with one another to produce viable offspring
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population
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a group of organisms tht coexist at the same time and in the same place and are capable of interbreeding.
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habitat
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groups of populations existion in the same area
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ecosystem
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the oragnisms of a particular habitat together with the physical (non living) environment
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biosphere
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the sum of all earth's ecosystems.
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Emergent properties
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1. combinations of above give unique properties not found in lower levels.
2. the whole is greater than the sum of the parts. ex: an organism is born and dies, but only a population has a birth and a death rate. |
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monera
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single celled bacteria; prokaryotic-no nuclear membrane
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Protista
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Single or multicellular; eukaryotic has nuclear membrane
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Fungi
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absorb materials from surrounding environment; decomposers has nuclear membrane
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Plantae
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primarily multicellular, but some unicellular; photosynthesis; autotrophs, has nuclear membrane
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Anamalia
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multi-cellular, eukaryotic, hetertophs, has nuclear membrane
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science
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an attepmt to discover order in nature and use that knowledge to make predictions and projections
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scientific data
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facts from observations and measurement
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scientific hypothesis
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an educated guess that explains a scientic law or scientific facts
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models
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simulates complex processes and systems
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scientific theory
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if many experiments by different scientists support a model or a hypothesis, well tested and highly accepted
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scientific method
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-way in which scientists gather data and formulate and test scientific hypothesis
-a set of questions with no particular rule for answering them there are many methods to scientific reasearch. |
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Basic Life Processes
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characteristics found in all living things from sigle celled to multicellular- no single way to group these qualities.
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5 kingdom classification
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monera,
protista, fungi, plantae, anamalia (MPFPA) mom please fly past atlanta |