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23 Cards in this Set
- Front
- Back
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A nucleus of an atom is composed of |
Protons and neutrons |
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Protons are _____ charged |
Positively |
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Neutrons have _____ charge |
No |
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11 organ systems |
Integumentary, skeletal, Muscular, Nervous, Endocrine, Circulatory, Lymphatic, Respiratory,urinary, Digestive, Reproductive. |
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Organ |
A structure composed of two or more tissue types to work together to carry out a particular function |
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Largest organ |
Skin |
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Molecules def. |
Particles composed of at least 2 atoms |
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9 life characteristics |
Organization,Cellular Composition, Metabolism,Responsiveness, movement, Homeostasis, Development, reproduction, evolution of a population |
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Metabolism |
The sum of all the internal chemical changes |
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Anabolism |
Simpler molecules are built up to synthesized into more complex molecules |
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Catabolism |
Complex molecules are broken down into simpler ones |
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Development def. |
Any change of Form or Function in the lifetime of an organism |
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Differentiation |
Transformation of generalized cells into specialized cells |
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Physiological variables differ depending on.... |
Sex, age, diet, wait, physical activity, and environment |
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Homeostasis is accomplished by the body's __________feedback |
Negative |
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Eternal state of the body is best described as..... |
Dynamic equilibrium |
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Negative feedback definition |
The process in which the body senses a change and actively tries to reverse it |
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Vasodilation |
Widening of the blood vessels due to overheating |
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Feedback loops include |
Receptors, integrating Center, effectors |
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Positive feedback |
Self amplifying cycle |
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Types of gradients |
Chemical concentration, electrical charge, physical pressure, and temperature |
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Blood circulation is an example of |
A pressure gradient |
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Eponyms |
Terms coin from the names of people |
