Practice Teas Science
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Created by:
christina_nilsson on November 5, 2011
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42 terms
Terms | Definitions |
|---|---|
 Breakdown of Fats begins in the... | small intestine |
| Breakdown of carbohydrates begins in the... | mouth |
| Breakdown of protein begins in the... | stomach |
| ____ is not digestible | fiber |
| Define Paradigm shift | a radical change from previous thinking |
| Define adaption | the increase of alleles of certain genes from generation to generation that allows a species to survive and reproduce better. |
| Natural selection | the means by which adaption occurs |
| What nervous system activates the body's fight-or-flight response? | sympathetic nervous system (in presence of stress, the heart beats faster and stronger, more blood is carried to the vital organs, and the pupils dilate to prepare body to defend itself) |
| What type of data deals with numbers that can be measured? | Quantitative data |
| water undergoes relatively minor temperature and phase changes compared to other substances due to its... | high specific heat ad high heat of vaporization. |
| when a new species is being named and classified the new classification system relies more heavily on... similarities than ... | DNA sequence, physical characteristics |
| Hydrocarbons with double bonds obey what general formula? | CnH2n (C4H8) Number of Hydrogen atoms are always double the number of Carbon atoms. |
| what system provides the body's cells with oxygen and nutrients? | Cardiovascular |
| what system supplies the body with oxygen and removes carbon dioxide? | respiratory system |
| what muscle tissue are responsible for peristalsis that occur in the digestive tract? | smooth muscle tissue |
| Protons have a charge of | +1 |
| electrons have a charge of | -1 |
| Protons mass is... massive than electrons mass | 2000 times more |
| The spine is a part of what system? | skeletal system |
| The spinal cord is a part of what system? | Central nervous system |
| If a gas(A) has higher density than another ga(B) it will travel ... than that gas. | more slowly |
| If a gas(A) has lower density than another gas(B) it will travel ... than that gas. | faster |
| In what organ is immune cells produced | bone marrow |
| The heart is located ___ the sternum | behind |
| Population growth is ____ correlated with consumption of energy | positively |
| exchange of oxygen occurs in what structure of the respiratory system? | Alveoli |
| fertility rates are ___ in less-developed countries than in more-developed countries. | higher |
| The mass of an atom is determined by the number of ____ and _____. | protons, neutrons |
| ______ is considered an internal factor that enzyme activity is driven by. | amino-acid structure |
| ___, ____, and ___________ is considered to be external factors that enzyme activity is driven by. | pH, temperature, and substrate concentration |
| _____ cells lacks membrane bound nucleus | prokaryotic |
| mutations in human DNA originate in the____ and is expressed in the ____ | genotype, phenotype |
| what is the powerhouses of cells in heterotrophs | mitochondria |
| the rough surface on ER is due to | ribosomes |
| the smooth surface on smooth ER is due to | lack of ribosomes |
| Covalent bond is the____ of electrons while ionic bond are the ... electrons to complete valence structure. | sharing, donating and accepting |
| mutations along ___ cells are passed on to future generations. | germ |
| DNA codons in genes encode_____, which comprise ____. | Amino-acids, proteins |
| during cell replication polymerase enzyme duplicates... | DNA |
| Meiosis occur in ___ cells only. | germ cells |
| Define: Kinetic energy | energy of motion |
| potential energy | the ability of a system to do work due to its position or internal structure |
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