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BIOL 135 JCCC Lab Exam 1: Questions With Answers
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BIOL 135 JCCC Lab Exam 1: Questions With Answers
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BIOL 135 JCCC Lab Exam 1: Questions With AnswersWhat metric unit would you use for a fork? Right Ans - cm
What metric unit would you use for the width of a cell nucleus? Right Ans -
mm/micrometer
What metric unit would you use for the width of a pea? Right Ans - mm
What metric unit would you use for the length of a car? Right Ans - meters
What metric unit would you use to measure the height of a fridge? Right
Ans - meter
What is a meniscus? Right Ans - The curved upper surface of a liquid in a
tube
Why has the metric system been adopted by so many countries? Right Ans
- 1. It has a single, basic unit for each type of measurement.
2. Each basic unit can have prefixes that are based on powers of 10, which
makes conversions a lot easier.
Basic metric unit of LENGTH Right Ans - meter (m)
Basic metric unit of VOLUME Right Ans - liter (L)
Basic metric unit of MASS/WEIGHT Right Ans - gram(g)
NOTE Right Ans - 1/1000th of a liter = 1 milliliter = 1 cubic centimeter = 1
cm3 = 1 cc
Basic metric unit of TEMPERATURE Right Ans - Celsius(C)- Water freezes
at 0C and boils at 100C
Convert to Scientific Notation: 186000 Right Ans - 1.86x10^5
Convert the following decimal numbers to exponential numbers: 0.00018
Right Ans - 1.8x10^-4
, Convert the following exponential numbers to decimal numbers: 3.7 x 10^3
Right Ans - 3700
Convert the following exponential numbers to decimal numbers:
4.0103 x 10-1 Right Ans - 0.40103
Convert the following measurements to the indicated unit:
335.9 g = _________________ kg Right Ans - 0.3359kg
Convert the following measurements to the indicated unit: 0.0886 km = ____ m
Right Ans - 88.6m
Convert the following measurements to the indicated unit: 0.00939 mL =
__________________ μl Right Ans - 9.39uL
Convert the following measurements to the indicated unit: 89 mg = ____kg
Right Ans - 8.9x10^-5
Scientific Hypothesis Right Ans - a possible explanation for the question
formed during observation. This should be a broad testable and falsifiable
statement
Scientific Method Right Ans - Observation of a phenomena that lead to a
question about a situation or system
Prediction Right Ans - What should happen in the experiment as a result of
the hypothesis. If/Then format.
independent variable Right Ans - What you manipulate
dependent variable Right Ans - what changes in the reaction due to the
independent variable
control variable Right Ans - what remains the same and does not change
throughout the experiment
Procedure Right Ans - how is an experiment carried out
negative control Right Ans - absence of the independent variable
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