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CLEP Natural Science
Study for the CLEP test for Natural Sciences
Question | Answer |
---|---|
Microvilli are? | Filaments to absorb. They also have digestive enzymes. |
What are secretory vesicles? | They are packages packaged by golgi apparatus or endoplasmic reticulum. They carry synthesized substances. |
Network Covalent bonds are? Examples? | Hard, have high boiling points, are bad conductors, and are very strong. Examples: SiC, diamonds, SiO2 |
Metalic bonds are? Examples? | In mercury, copper, etc. D orbital electrons move around making it a good conductor. |
Word for non-vascular plants? Example? | Bryophytes. Mosses. |
Word for flowering plants. | Angiosperms (root and shoot). |
Plants producing seeds without flowers? Example? | Gymnosperms. Conifers. |
Definition of radiation? | Heat traveling away from source through space in waves. |
Plant evolution began with what? | Aerobic prokaryotic cells. |
Where does the transfer of nutrients to a mammal embryo take place? | The placenta. |
Sequence of human evolution? | Australopithecus afarensis (Lucy), Homo Erectus, Cro Magnon (Homo sapiens), Modern Man. |
Sequence of covalent bonds? | First sigma, then pi. |
Equinoxes and Solstices? | Equinoxes are when the sun crosses the celestial equator and solstices are when the sun's ecliptic is farthest away from the celestial equator. |
What do inorganic cofactos do? | They help enzymes with catalysis. |
Keton group? | Double bond between oxygen and carbon. |
Alcohol group? | Carbon single bond to OH. |
Ester group? | Carbon double bond to oxygen. |
Aldehyde group? | Carbon double bonded to oxygen with no other carbons. |
Which came first: eukaryotes or photosynthetic cells? | Photosynthetic cells. |
The process that releases energy for the cell to use is called? | Cellular respiration (aerobic and anaerobic). |
Ohm's Law? | C=V/R, V=CxR, R=V/C |
What do simple machines do? Name five. | They alter the magnitude and direction of a force. Lever, wheel and axle, pulley, inclined plane, screw. |
What does the quantum number n mean? | The shell the electron occupies. 1-7. The higher the number the more energy. |
What does the quantum number l mean? | The subshell the electron occupies; the shape of the orbital. There are four possibilities: s, p, d, f. |
What does the quantum number ml mean? | The orbital position. The orbital with the most negative number is filled first. s: 0>= p: -1,0,1 >= d: -2, -1, 0, 1, 2 >= f: -3,-2,-1,0,1,2,3 >= |
What does the quantum number ms mean? | Each orbital has as many as two electrons, one positive and one negative (+1/2, -1/2). The first ground state in th orbital takes +1/2. |
What is the constant temperature in the change from liquid to solid and back again called? | Heat of fusion. |
What is the alimentary canal? | It is also known as the GI (gastrointestinal tract). Goes from the mouth to the intestines. |
Examples of: Igneous Rock Metamorphic Rock Sedimentary Rock | Granite Marble White Limestone, Sandstone, Cement |
By what does the sun generate energy? | Fusion. |
What keeps body conditions normal? | Homeostatic mechanisms. |
What organisms use photosynthesis? | Autotrophs. |
What does a redshift signify? | It means that a star is moving away from the observer. |
What distinguishes a prokaryote? Example? | Prokaryotes have no nucleus-or-membrane-bound-organelles. Blue-green algae. |
Ordovician Period marked by? | Mass extinctions followed by diversification of species. Also the development of land plants. |
Silurian Period marked by? | Adaptive radiation. |
What is present in reproductive organs at birth? | Primary oocytes. |
Postitron decay? | Proton ----> Neutron Mass number the same, atomic number decreases by 1. |
Beta decay? | Neutron ----> Proton Mass number the same, atomic number increases by 1. |
The Law of Minimums | Shortest supply in ecoystem limits population growth. |
Each quark is called a? How many types? What are they? | Flavor. Six. Up, down, strange, charm, top, bottom. |
Classification from least to most specific? | Kingdom, Phylum, Class, Order, Family, Genus, Species. |
Four Fundamental Forces in order of magnitude? | Strong nuclear, Electromagnetic, Weak nuclear, Gravity. |
Isotonic? | Water pressure is equal inside and outside the cell. |
Define Inertia | The tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external force. |
How do vitamins relate to enzymatic reactions? | Vitamins are organic cofactors. |
Prosthetic groups? | Ions or non-protein molecules that lightly attach to an enzyme to facilitate enzyme reaction. |
How does an alluvial fan differ from a delta? | An alluvial fan is the result of a fast-moving stream out of a mountain canyon, a delta is from a river emptying into a lake or ocean. |
Adiabatic process? Example? | A thermodynamic process that doesn't involve the transfer of heat. Like a window pane with a partition of air between panes that keeps in heat. |
Catabolism? | The breakdown in living organisms of more complex substances into simpler ones together with release of energy. |
Anabolism? | The synthesis in living organisms of more complex substances (e.g., living tissue) from simpler ones together with the storage of energy |
Metabolism? | The organic processes (in a cell or organism) that are necessary for life (catabolism and anabolism). |
Dalton's Law? | Dalton's law (also called Dalton's law of partial pressures) states that the total pressure exerted by a gaseous mixture is equal to the sum of the partial pressures of each individual component in a gas mixture. |
Charles' Law? | Charles's law (also known as the law of volumes) is an experimental gas law which describes how gases tend to expand when heated. |
Boyle's Law? | Boyle's law describes the inversely proportional relationship between the absolute pressure and volume of a gas, if the temperature is kept constant within a closed system. |
Parallax of a star? | It is the angular difference measured when a star is observed once then six months later, ie when the Earth has moved along half a rotation around the Sun. |
First kind of cells to evolve? | Prokarytic cells from Kingdom Monera. |
Name for the visible surface of the sun? | The photosphere. |
Corona? | Ring outside sun's surface that shows during eclipse. |
Properties of dicots? | Two cotyledons per seed, taproot systems, petals in multiples of 4 or 5, network or branching veins, vascular bundles in rings. |
What did the Michelson-Morley experiment demonstrate? | That the speed of light is the same in all directions. |
The law of segregation is? | Genes are separated in gamete formation and randomly brought together in fertilization (in other words, one pair of genes from each parent). |
Formula to change C to F? | C = 5/9(F-32) |
Cathode? Anode? | A cathode is an electrode through which electric current flows out of a polarized electrical device. An anode is an electrode through which electric current flows into a polarized electrical device. |
Minerals are? | Substances that were never part of a living organism and are found in nature. |
Ratio of unit of magnitude and brightness of stars? | 1 unit/2.5 times brightness |
Passive and active transport in cell? | The cell (plasma) membrane. |
Heat of Vaporization, or enthalpy? | Amount of energy needed to turn substance into a gas. |
Heat of fusion? | Amount of energy needed to turn substance from liquid to solid, or vice versa. |
Sharp boundary of an ecosystem? | Ecotone. |
Chondrichthyes? Osteichthyes? | Cartalaginous fish. Bony fish. |