Term
| living things using use energy! |
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Definition
| living things have a definite form and a limited size. |
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Term
| living have a limited life span. |
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Definition
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Term
| living things respond to changes in the enviroment. |
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Definition
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Term
| nutrition- all living things require food for building materials (for growing and repair damage) and for energy . this involves obtaining food and processing it for use . |
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Definition
| ingestion - the stage of obtaining the food |
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Term
| transport-the metabolic process where materials are absorbed into a substance like blood and then (distributed) throughout an organism. |
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Definition
| respiration- the process where all energy required to maintain life is generated. involves two levels: |
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Term
| excretion- the removal of wastes produced by the cell |
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Definition
| synthesis- synthesis means making or building. |
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Term
| regulation- the control and coordination of all activities in an organism. this allows the organism to respond to changes in the enviroment. |
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Definition
| reproduction- the process by which living things produce new organisms of their own kind. |
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Term
| homeostasis- steady state or dynamic equilibrium. by controlling` and regulating its activities and metobalic process an organism can maintain a stable internal enviroment. |
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Definition
| humans sweat and skin becomes redder during exercise |
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Term
| scientific investiogation- the process by which information new and old is learned in science . all good scientific investigatons start by using the sientific method. |
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Definition
| scientific method -the process used to answer questions in science. there are some basic steps to the scientific method. |
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Term
| stereoscopic or dissecting microscope. use an eyepeice occularlens and an objective lens for each eye. |
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Definition
| electron microscopes. use a beam of electrons not light to make an image of the specimen. |
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Term
| chromatography- this technique is used for chemical seperation. mixtures of chemial substances can be sperated and analyzed. |
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Definition
| electrophoresis- techniques for electrical separation of substaces whose praicales have electrical charges. this is the technique used for dna matching during criminal investigations. |
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Term
| tissue culture- techniques used to maintain living tissue outside th body. the tissues are placed in containers with the proper fluids nutrients, etc. can be used for plant or animal tissues. |
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Definition
stain or dyes- colors which are obsorbed into different structures to make them more visible. they are usually poisonous. we will use iodine and methylene blu in labs.
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Term
| dissecting equipment- materials used for perfoeming dissections such as scalpels pins foreps scissors, etc. |
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Definition
| micro-dissection equipment- equipment used to dissect cells. cells. structures. can only be used with larger structures such as the nucleus. micro-dissection equipment is mounted on a microscope and while viewing cells through a microscope. lasers are currently used in a micro-dissection |
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Term
| controlled experiments are developed to test a hypothesis |
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Definition
| variable- what we are doing to apply to the experimental group that will cause a change aas the experiment runs. the control group will not have the variable applied. |
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Term
| controlled experiments are always run on two set ups at the same. |
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Definition
| the control does not have the variable applied. it is the the part of the experiment that we will compare the experimental group results against |
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Term
| the experimental will have the variable applied. |
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Definition
metabolism- is the combination of all metobolic activitiesthat happen within a living thing.
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Term
| transport refers to the internal movement of materials in an organism. this is how oxygen and nutrients are moved to all the cells in your body and how wastes are removed from all the cells of your body |
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Definition
| wastes like carbon dioxide water heat and urea are produced in cells during other metobolic processes. the process of excretion removes them before they build up to levels that are harmful to the organism. |
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Term
| synthesis is the ability to build large complex molecules from smaller ones. these smaller building blocks come from the food we eat. |
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Definition
| this procces allows an organism to produce all of the materials needed in their body from the raw materials in the food that they eat. |
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Term
| this process is NOT necessary for the survival of the individual organism. |
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Definition
| reproduction is necessary fo the survival of the species and to prevent exstinction. |
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Term
| an exchange of gases between the organism and the enviroment. this usually involves transfer of oxygen. we breathe in oxygen and breathe out carbon dioxide. |
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Definition
| The the burning up or more accurately the breaking down of nutrients from food to release enrgy. |
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Term
| the metobolic process of respiration in humans is not breathing. breathing does not release energy(it uses it) |
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Definition
| the process of respiration incells is like the production of energy by a power plant. |
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Term
| plants open their guard cells when light and water is available and close when light and/or water is not available. |
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Definition
| bears hibernate during winter months |
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Term
meat----maggots
horsehair---worms
box with shirt an grain--mice |
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Definition
| some people believed in spontaneous generation until the 1700's. |
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Term
francesco redi did not beleive that meat turned into maggots. he observed flies on the meat an hypothesized that maggots grew from fly eggs.
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Definition
| redi did an controlles experiment with meat in jars. one group of jars was open one group was closed and one group was covered with screens. |
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Term
| an exchange of gases between the organism and the enviroment. this usually involves transfer of oxygen. we breathe in oxygen and breathe out carbon dioxide |
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Definition
| the burning up or more accuretly the breaking down of nutrients from food to realease energy |
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Term
| the metabolic process of respiration in humans is not breathing. breathing does not realease energy(it uses it). |
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Definition
| all organisms must do respiration |
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