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Definition
the field of view is larger and brighter |
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Term
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Definition
the field of view is smaller and darker |
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Definition
used when focusing the microscope under high power magnification |
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Term
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Definition
adjusts the lighting when using the microscope
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Term
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Definition
The liquid or solution can be replaced by adding a new solution at the side of the cover slip while drawing out the original solution by placing a paper towel at the opposite side of the cover slip. |
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Term
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Definition
Must be prepared to view live specimens under a microscope. A thin specimen is placed on a clean glass slide. A drop of water or stain is added to the specimen. Then, a cover slip is lowered at an angle to prevent air bubbles from forming. |
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Term
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Definition
what is being investigated; written in question form |
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Term
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Definition
a testable, trial explanation about the answer to the problem; a statement written in sentence form |
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Term
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Definition
An experiment must be repeated several times before results are considered valid. A large sample size increases the validity of the data. Multiple setups should be used for each condition and the results averaged. |
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Term
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Definition
Used for comparison. A negative control is not expected to change during an experiment, for example the test tube which contained cream but no lipase showed no color change during the fat hydrolysis experiment. A positivecontrol will show the change expected, for example the test tube with standard DNA turned purple when heated with diphenylamine. The spooled DNA from the onion was compared to it. |
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Term
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Definition
the number known before the experiment begins, such as time in minutes. It is placed on the x-axis. |
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Term
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Definition
used when there are two sets of numerical data |
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Definition
what is measured in the experiment, such as ml. of oxygen gas produced, number of heartbeats, cm of stem growth. It is placed on the y-axis. |
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Term
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Definition
Include the units. Be sure both axes start at zero and are divided into evenly spaced intervals. Use the entire graph grid. |
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Term
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Definition
Be sure both axes start at zero and are divided into evenly spaced intervals. Use the entire graph grid. |
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Term
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Definition
Don’t connect the line to (0,0) unless there is a point located there. Simply connect the points that you plot on the graph. |
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Term
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Definition
Use if one set of data is numerical and one set of data consists of words. Always place the numerical data on the y-axis of the bar graph. |
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Term
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Definition
used for organizing scientific data |
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Term
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Definition
The first column contains numbers that go in increasing or decreasing order. The top of each column must be titled and have the units indicated. |
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Term
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Definition
can be used to determine the acidity or alkalinity (basicity) of a solution |
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Definition
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Definition
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Definition
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Definition
contain a high concentration of H+ ions and a low concentration of OH- ions. |
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Term
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Definition
contain a high concentration of OH- ions and a low concentration of H+ ions |
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Term
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Definition
Only a single condition being investigated in an experiment should differ. Otherwise, conditions in an experiment must be exactly the same for all test tubes or test subjects. |
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Term
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Definition
determined from the data in an experiment and stated as a complete sentence. |
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Term
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Definition
an idea that is supported by the conclusion in an experiment |
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Term
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Definition
adjusts the brightness of a microscope |
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Term
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Definition
an indicator for starch (polysaccharide), amber in color, will turn blue-black or purple of starch is present, also called Lugol’s solution or starch indicator solution |
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Term
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Definition
When an acid is added to a base, the pH will gradually lower until a neutral solution is obtained. A salt and water forms. |
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Term
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Definition
an indicator for sugar; changes from blue to orange, after heating, if sugar is present |
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Term
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Definition
lack a nucleus and other membrane-bound organelles Example: bacteria |
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Term
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Definition
contain a nucleus Examples: protists, fungi, plant and animal cells |
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Term
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Definition
found in autotrophic cells; produce glucose during the process of photosynthesis; contain the light-capturing pigment called chlorophyll; can be seen with a light microscope; appear green because chlorophyll reflects the green wavelength of light |
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Term
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Definition
contained in the nucleus of eukaryotic cells; made up of nucleotides; genetic information which guides the formation of RNA
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Term
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Definition
where aerobic respiration occurs; powerhouses of the cell; produce ATP ( the main energy source for chemical reactions within living cells) |
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Term
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Definition
a selectively permeable boundary around a cell; regulates which molecules pass into and out of the cell; composed of lipid and protein molecules; lipids are arranged in a phospholipid bilayer with their hydrophobic (water-fearing) tails facing inward |
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Term
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Definition
surrounds the cell membrane and is the outer boundary of plant cells |
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Term
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Definition
the movement of molecules from an area of high concentration to an area of low concentration; will occur across a membrane if molecules are small and uncharged; Large molecules: starch, other polysaccharides, lipids; Small molecules: water, glucose, amino acids, glycerol, nucleotides |
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Term
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Definition
the diffusion of water across a cell membrane |
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Term
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Definition
occurs when membrane proteins use ATP energy to carry materials into and out of a cell; the movement of molecules from an area of low concentration to an area of higher concentration; large and charged molecules are moved into cells by active transport; includes phagocytosis |
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Term
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Definition
allows for a fast rate of diffusion into a cell |
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Term
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Definition
protein molecules that catalyze (help) chemical reactions; usually end in ase |
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Term
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Definition
the breaking down of large molecules into smaller molecules with the addition of water |
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Term
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Definition
the combining of small molecules to form a larger molecule with the loss of water |
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Term
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Definition
the building blocks of proteins; contain an amino group (NH2 ) , a carboxyl group (COOH), an R (variable group) and an H attached to a central carbon; there are 20 different kinds |
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Term
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Definition
the field of view is larger and brighter |
|
|
Term
|
Definition
the field of view is smaller and darker |
|
|
Term
|
Definition
used when focusing the microscope under high power magnification |
|
|
Term
|
Definition
adjusts the lighting when using the microscope
|
|
|
Term
|
Definition
The liquid or solution can be replaced by adding a new solution at the side of the cover slip while drawing out the original solution by placing a paper towel at the opposite side of the cover slip. |
|
|
Term
|
Definition
Must be prepared to view live specimens under a microscope. A thin specimen is placed on a clean glass slide. A drop of water or stain is added to the specimen. Then, a cover slip is lowered at an angle to prevent air bubbles from forming. |
|
|
Term
|
Definition
what is being investigated; written in question form |
|
|
Term
|
Definition
a testable, trial explanation about the answer to the problem; a statement written in sentence form |
|
|
Term
|
Definition
An experiment must be repeated several times before results are considered valid. A large sample size increases the validity of the data. Multiple setups should be used for each condition and the results averaged. |
|
|
Term
|
Definition
Used for comparison. A negative control is not expected to change during an experiment, for example the test tube which contained cream but no lipase showed no color change during the fat hydrolysis experiment. A positivecontrol will show the change expected, for example the test tube with standard DNA turned purple when heated with diphenylamine. The spooled DNA from the onion was compared to it. |
|
|
Term
|
Definition
the number known before the experiment begins, such as time in minutes. It is placed on the x-axis. |
|
|
Term
|
Definition
used when there are two sets of numerical data |
|
|
Term
|
Definition
what is measured in the experiment, such as ml. of oxygen gas produced, number of heartbeats, cm of stem growth. It is placed on the y-axis. |
|
|
Term
|
Definition
Include the units. Be sure both axes start at zero and are divided into evenly spaced intervals. Use the entire graph grid. |
|
|
Term
|
Definition
Be sure both axes start at zero and are divided into evenly spaced intervals. Use the entire graph grid. |
|
|
Term
|
Definition
Don’t connect the line to (0,0) unless there is a point located there. Simply connect the points that you plot on the graph. |
|
|
Term
|
Definition
Use if one set of data is numerical and one set of data consists of words. Always place the numerical data on the y-axis of the bar graph. |
|
|
Term
|
Definition
used for organizing scientific data |
|
|
Term
|
Definition
The first column contains numbers that go in increasing or decreasing order. The top of each column must be titled and have the units indicated. |
|
|
Term
|
Definition
can be used to determine the acidity or alkalinity (basicity) of a solution |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
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Term
|
Definition
contain a high concentration of H+ ions and a low concentration of OH- ions. |
|
|
Term
|
Definition
contain a high concentration of OH- ions and a low concentration of H+ ions |
|
|
Term
|
Definition
Only a single condition being investigated in an experiment should differ. Otherwise, conditions in an experiment must be exactly the same for all test tubes or test subjects. |
|
|
Term
|
Definition
determined from the data in an experiment and stated as a complete sentence. |
|
|
Term
|
Definition
an idea that is supported by the conclusion in an experiment |
|
|
Term
|
Definition
adjusts the brightness of a microscope |
|
|
Term
|
Definition
an indicator for starch (polysaccharide), amber in color, will turn blue-black or purple of starch is present, also called Lugol’s solution or starch indicator solution |
|
|
Term
|
Definition
When an acid is added to a base, the pH will gradually lower until a neutral solution is obtained. A salt and water forms. |
|
|
Term
|
Definition
an indicator for sugar; changes from blue to orange, after heating, if sugar is present |
|
|
Term
|
Definition
lack a nucleus and other membrane-bound organelles Example: bacteria |
|
|
Term
|
Definition
contain a nucleus Examples: protists, fungi, plant and animal cells |
|
|
Term
|
Definition
found in autotrophic cells; produce glucose during the process of photosynthesis; contain the light-capturing pigment called chlorophyll; can be seen with a light microscope; appear green because chlorophyll reflects the green wavelength of light |
|
|
Term
|
Definition
contained in the nucleus of eukaryotic cells; made up of nucleotides; genetic information which guides the formation of RNA
|
|
|
Term
|
Definition
where aerobic respiration occurs; powerhouses of the cell; produce ATP ( the main energy source for chemical reactions within living cells) |
|
|
Term
|
Definition
a selectively permeable boundary around a cell; regulates which molecules pass into and out of the cell; composed of lipid and protein molecules; lipids are arranged in a phospholipid bilayer with their hydrophobic (water-fearing) tails facing inward |
|
|
Term
|
Definition
surrounds the cell membrane and is the outer boundary of plant cells |
|
|
Term
|
Definition
the movement of molecules from an area of high concentration to an area of low concentration; will occur across a membrane if molecules are small and uncharged; Large molecules: starch, other polysaccharides, lipids; Small molecules: water, glucose, amino acids, glycerol, nucleotides |
|
|
Term
|
Definition
the diffusion of water across a cell membrane |
|
|
Term
|
Definition
occurs when membrane proteins use ATP energy to carry materials into and out of a cell; the movement of molecules from an area of low concentration to an area of higher concentration; large and charged molecules are moved into cells by active transport; includes phagocytosis |
|
|
Term
|
Definition
allows for a fast rate of diffusion into a cell |
|
|
Term
|
Definition
protein molecules that catalyze (help) chemical reactions; usually end in ase |
|
|
Term
|
Definition
the breaking down of large molecules into smaller molecules with the addition of water |
|
|
Term
|
Definition
the combining of small molecules to form a larger molecule with the loss of water |
|
|
Term
|
Definition
the building blocks of proteins; contain an amino group (NH2 ) , a carboxyl group (COOH), an R (variable group) and an H attached to a central carbon; there are 20 different kinds |
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