Biology I Exam 1 University of Health Sciences and
Pharmacy in St. Louis BIOL 1111 EXAM QUESTIONS
AND 100% VERIFIED ANSWERS
Biology I Exam #1
\Q\.3 main components of nucleotides
1. phosphate group
2. 5-carbon sugar
3. base
\Q\.5 steps of scientific method
1. observation
2. question
3. hypothesis
4. experiment
5. conclusion
,.observation
act of viewing the world around us
.question
made based off of an observation
.hypothesis
a tentative explanation for an observation
.controlled experiment
- test several groups
- introduce a single variable per treatment
- keep conditions as similar as possible from one group to the next
\Q\.conclusion
supports/refutes hypothesis
- more experimentation needed if refuted
\Q\.prediction
a guess of what might happen based on observation-- the outcome you would observe if your
hypothesis was supported
\Q\.theory
a sound explanation of the world supported through continued observation and experiments
over a long period of time
\Q\.double helix
2 strands of complementary nucleotides that coil around each other
- bases point inward
,\Q\.phosphodiester bond
covalent bond that joins nucleotides
- C-O-P-O-C linkage
- sugar-phosphate backbone of DNA strand
- gives strand polarity
- 5' vs. 3'
, \Q\.3 components of a controlled experiment
1. variable
2. test group
3. control group
\Q\.variable
feature of an experiment that is changed from one treatment to the next
\Q\.test group
exposed to variable in an experiment
\Q\.control group
not exposed to the variable in an experiment
\Q\.importance of test group & control group
they allow researchers to determine whether the variable in an experiment has an effect
\Q\.independent variable
Pharmacy in St. Louis BIOL 1111 EXAM QUESTIONS
AND 100% VERIFIED ANSWERS
Biology I Exam #1
\Q\.3 main components of nucleotides
1. phosphate group
2. 5-carbon sugar
3. base
\Q\.5 steps of scientific method
1. observation
2. question
3. hypothesis
4. experiment
5. conclusion
,.observation
act of viewing the world around us
.question
made based off of an observation
.hypothesis
a tentative explanation for an observation
.controlled experiment
- test several groups
- introduce a single variable per treatment
- keep conditions as similar as possible from one group to the next
\Q\.conclusion
supports/refutes hypothesis
- more experimentation needed if refuted
\Q\.prediction
a guess of what might happen based on observation-- the outcome you would observe if your
hypothesis was supported
\Q\.theory
a sound explanation of the world supported through continued observation and experiments
over a long period of time
\Q\.double helix
2 strands of complementary nucleotides that coil around each other
- bases point inward
,\Q\.phosphodiester bond
covalent bond that joins nucleotides
- C-O-P-O-C linkage
- sugar-phosphate backbone of DNA strand
- gives strand polarity
- 5' vs. 3'
, \Q\.3 components of a controlled experiment
1. variable
2. test group
3. control group
\Q\.variable
feature of an experiment that is changed from one treatment to the next
\Q\.test group
exposed to variable in an experiment
\Q\.control group
not exposed to the variable in an experiment
\Q\.importance of test group & control group
they allow researchers to determine whether the variable in an experiment has an effect
\Q\.independent variable
