Term
| Which characteristic is not shared by ALL living organisms? |
|
Definition
|
|
Term
| The mechanism of ___________________ that is described as the differential contribution of offspring to the next generation by organisms with different physical variations within a population is called __________________. |
|
Definition
| Evolution; natural selection |
|
|
Term
| What is always false about an adaptation? |
|
Definition
| If a trait is adaptive in one environment it is adaptive in all environments. |
|
|
Term
| ____________________ is defined as all of the DNA for a particular individual organism. |
|
Definition
|
|
Term
| What are the levels of organization of living things from largest to smallest? |
|
Definition
| organism, organ system, organ, cell, organelle |
|
|
Term
| The organization of bacterium has...? |
|
Definition
| organelle, cell, and molecule |
|
|
Term
| The advantage of controlled scientific experiments is that... |
|
Definition
| all variables except one are held constant. |
|
|
Term
Put the steps of science method in order.
I. observation
II. draw conclusions
III. formulate a question
IV. experiment or data collection
V. hypothesis |
|
Definition
|
|
Term
| . A ________________________________ is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method, and repeatedly confirmed through observation and experimentation. |
|
Definition
|
|
Term
After making observations and coming up with questions, scientists apply logic in order to propose a possible explanation, which
is called a(n)___________________________ |
|
Definition
|
|
Term
| subatomic particle with a negative charge |
|
Definition
|
|
Term
| subatomic particle with a positive charge |
|
Definition
|
|
Term
| the number of protons that an atom has |
|
Definition
|
|
Term
| two or more atoms that are chemically bonded together |
|
Definition
|
|
Term
| 2 atoms first exchange electron and then form a bond |
|
Definition
|
|
Term
| bond formed when electrons are shared unevenly |
|
Definition
|
|
Term
| a positively or negatively charged particle |
|
Definition
|
|
Term
| the amount of product produced in a given period of time |
|
Definition
|
|
Term
Which of the following is not a molecule?
a. C6H12O6 b. COOH c. H2O d. CO2 e. all of the above are molecules. |
|
Definition
|
|
Term
| Balance the following reaction: N2 + ___H2 → ___NH3 |
|
Definition
|
|
Term
True or False?
P, phosphorus, shares 2 electrons |
|
Definition
|
|
Term
True or False?
C6H12O6 + 6O2 → 6CO2 + 6H2O
The energy for this reaction is →. And equals zero. |
|
Definition
|
|
Term
| How many electrons does an ion of calcium (Ca) ion? |
|
Definition
|
|
Term
| The attraction between the slight negative charge of a nitrogen atom and the slight positive charge on a nearby hydrogen atom is the basis for a ___________________. |
|
Definition
|
|
Term
| What are the formulas for a proton? |
|
Definition
|
|
Term
| describe the following molecule: NaHCO3 |
|
Definition
| an ionic component and a covalent component |
|
|
Term
| types of chemical bonds and interactions from strongest to weakest |
|
Definition
| covalent, ionic, hydrostatic interactions |
|
|
Term
| When MgCl2 is dissolved in water, it will disassociate into… |
|
Definition
|
|
Term
Molecules in the air can mix with water and form an acid. Such solutions can then make their way into lakes and streams via acid rain. What would the effect of such rain be on a small pond?
a. The pH in the pond would increase.
b. The pond would become more acidic.
c. The pH of the pond would decrease.
d. both a and b are correct
e. both b and c are correct |
|
Definition
| e. both b and c are correct |
|
|
Term
| What are the formulas for a proton? |
|
Definition
|
|
Term
| describe the following molecule: NaHCO3 |
|
Definition
| an ionic component and a covalent component |
|
|
Term
| types of chemical bonds and interactions from strongest to weakest |
|
Definition
| covalent, ionic, hydrostatic interactions |
|
|
Term
| When MgCl2 is dissolved in water, it will disassociate into… |
|
Definition
|
|
Term
Molecules in the air can mix with water and form an acid. Such solutions can then make their way into lakes and streams via acid rain. What would the effect of such rain be on a small pond?
a. The pH in the pond would increase.
b. The pond would become more acidic.
c. The pH of the pond would decrease.
d. both a and b are correct
e. both b and c are correct |
|
Definition
| e. both b and c are correct |
|
|
Term
| Covalent bonds in which electrons are shared equally are _________________________ , while covalent bonds that are formed between atoms that share electrons unequally are___________________________. |
|
Definition
| water soluble; water insoluble |
|
|
Term
| When an atom gains or loses ____________________________, an ion is formed. |
|
Definition
|
|
Term
| Water molecules are cohesive due to ___________________. |
|
Definition
| hydrogen bonds between water molecules |
|
|
Term
| In a _____________________________ of sodium chloride, the water is the _____________________________ and the salt is the _________________________________. |
|
Definition
| solution; solvent; solute |
|
|
Term
| What is not a biological polymer? |
|
Definition
|
|
Term
| When 183 glucose form a polymer, _________ bonds hold them together. When the ___________ bond is formed a ________ molecules is removed from between the 2 monomers. This is an example of a _________ reaction. |
|
Definition
| 182; covalent; water; dehydration |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| The ____ the number of double bonds in a fatty acid the ____ the melting temperature of that fatty acid. |
|
Definition
| greater; lower or lower; greater |
|
|
Term
| The supporting material in cell walls, wood, and dietary fiber are examples of what carbohydrate? |
|
Definition
|
|
Term
| The atoms that make up carbohydrates are: |
|
Definition
|
|
Term
True or False?
Fatty Acids are hydrophobic because carbon atoms share electron evenly with other carbon atoms and carbon atoms share electrons evenly with hydrogen atoms. |
|
Definition
|
|
Term
| You look at the label on a container of shortening and see “hydrogenated vegetable oil.” This means that during processing the number of carbon–carbon double bonds in the oil was decreased. What is the result of decreasing the number of double bonds? |
|
Definition
| The oil is now a solid at room temperature |
|
|
Term
| Good sources of carbohydrate are: |
|
Definition
| cereals, fruits, vegetables, and milk |
|
|
