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Lab Practical BIO 150 Questions with complete solution 2024
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Lab Practical BIO 150 Questions with complete solution 2024
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Lab Practical BIO 150 Questions withcomplete solution (13 pgs)
A formal process of inquiry that consists of a series of steps that provide a
loose guideline for scientific investigations. - correct answer ✔Scientific
Method
A testable explanation for a set of observations based on the available data
and guided by inductive reasoning. - correct answer ✔Hypothesis
In deductive reasoning, a forecast that follows logically from a hypothesis. -
correct answer ✔Prediction
A set of subjects that has (or receives) the specific factor being tested in a
controlled experiment. - correct answer ✔Experimental Group
In a controlled experiment, a set of subjects that lacks (or does not receive)
the specific factor being tested. - correct answer ✔control group
A factor whose value is manipulated or changed during an experiment to
reveal possible effects on another factor. - correct answer ✔independent
variable
A factor whose value is measured during an experiment or other test to see
whether it is influenced by changes in another factor. - correct answer
✔dependent variable
The factors that do not vary in an experiment. - correct answer ✔controlled
variables
, the results of an experiment - correct answer ✔must be two of these
The data in the table below come from an experiment using mice to test what
factors have an effect on airway inflammation.
what is the independent variable being tested? - correct answer ✔amount of
fiber in diet
-control group 4%, experiment group .3% ( the variable being changed to
reveal possible effects of other variables)
micropipette reading vertically - correct answer ✔5.2;52;520
In the case of toxic substances, the standard measurement of toxicity is
known as a LD50, the lethal dose causing the death of ________% of the
organisms exposed to the substance. - correct answer ✔50
identify functional group of molecule
R-OOH - correct answer ✔carboxyl
A polymer of many amino acids linked together by peptide bonds and a
biologically functional molecule consisting of one or more amino acid strands
folded and coiled into a specific three-dimensional structure. - correct answer
✔Polypeptide (Protein)
Any of a group of large biological molecules, including fats, phospholipids, and
steroids, that mix poorly, if at all, with water. - correct answer ✔lipid
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