Biology 200 Pre Labs Exam Questions
and Answers
What is the order of the parts of the Cells lab that you will do this week?
Detailed Drawing #2 of a field sample from outside of lab that you will collect -
ANSWER-3rd
What is the order of the parts of the Cells lab that you will do this week?
Measurement Question #2, which will require some cross-teaching with another
student - ANSWER-4th
What is the order of the parts of the Cells lab that you will do this week?
Clean up according to the lab manual instructions - ANSWER-5th
Human vision can distinguish objects down to about a 4th of a millimeter (~250
micrometers). Given this, which of the following are generally visible to the human
eye? - ANSWER-None of the above
You make a slide of one of the cells. You did everything correctly, and you think that
you followed your TA's slide-making instructions perfectly. However, you can't see
anything in the microscope that looks like a cell. Which of the following choices could
be a good next step to try? (Choose all options that might be a good idea to try.) -
ANSWER-- Adjust the iris diaphram
- Switch to a different objective lens
- Remake the slide (sometimes, by luck, you didn't get any of the cells we are looking
for)
- Twist the fine focus knob to bring better focus
- Adjust the oculars so you can see more clearly
- Use the movement knobs to see a different part of the slide
- Use the coarse focus knob to bring better focus
(All answers)
You are observing a slide of green cells under the 4X objective. Each cell covers
approximately 1/8th of the width of your field of view. At least, that is what it seems
like...it is hard to get the sample cells to line up exactly and stop rotating. How large
of a diameter do these cells have? Choose the best answer to report to a colleague.
- ANSWER-Each cell is approximately ~500-600 micrometers in diameter,
accounting for inaccuracies and variability.
Cells are the basic unit of life. In the Cells lab, we'll observe several different kinds of
cells. Which of the following answers are true? (Pick all correct answers for credit) -
ANSWER-- Eukaryotic cells are usually distinguished from prokaryotic cells by
membrane-bound organelles.
, - All cells come from pre-existing cells.
- Cells vary in size across orders of magnitude.
To answer this question, you'll need to look at the Course Policies document
(available on the website).
Match the assignment to the number of points that it is worth for this term of Bio200.
- ANSWER-Exam 2: 100
All exams combined: 400
Clickers: 70
Reading Quizzes: 74
Contribution on the Piazza Discussion Board: not part of grading
Labs: 88
Lab 2: Enzyme Activity
Proteins are formed by linking basic building blocks together. These building blocks
are called 'amino-acids', and there are ~20 different kinds of amino-acids. Each has
a characteristic structure, which you should review in your Freeman textbook.
Once you've done that, put the following parts of the enzyme-forming process in
order as best you can. Like any pre-lab, the purpose of this question is not to give
you a hard exam but rather to guide your reading of the lab report and background
materials.
The earliest step is: - ANSWER-Formation of amino-acid building blocks
Proteins are formed by linking basic building blocks together. These building blocks
are called 'amino-acids', and there are ~20 different kinds of amino-acids. Each has
a characteristic structure, which you should review in your Freeman textbook.
Once you've done that, put the following parts of the enzyme-forming process in
order as best you can. Like any pre-lab, the purpose of this question is not to give
you a hard exam but rather to guide your reading of the lab report and background
materials.
The second step is: - ANSWER-The first part of the protein folds due to side-chain
and backbone interactions
Proteins are formed by linking basic building blocks together. These building blocks
are called 'amino-acids', and there are ~20 different kinds of amino-acids. Each has
a characteristic structure, which you should review in your Freeman textbook.
Once you've done that, put the following parts of the enzyme-forming process in
order as best you can. Like any pre-lab, the purpose of this question is not to give
you a hard exam but rather to guide your reading of the lab report and background
materials.
The third step is: - ANSWER-Joining amino-acids into a polymer like beads on a
string (this order is the 'primary structure')
and Answers
What is the order of the parts of the Cells lab that you will do this week?
Detailed Drawing #2 of a field sample from outside of lab that you will collect -
ANSWER-3rd
What is the order of the parts of the Cells lab that you will do this week?
Measurement Question #2, which will require some cross-teaching with another
student - ANSWER-4th
What is the order of the parts of the Cells lab that you will do this week?
Clean up according to the lab manual instructions - ANSWER-5th
Human vision can distinguish objects down to about a 4th of a millimeter (~250
micrometers). Given this, which of the following are generally visible to the human
eye? - ANSWER-None of the above
You make a slide of one of the cells. You did everything correctly, and you think that
you followed your TA's slide-making instructions perfectly. However, you can't see
anything in the microscope that looks like a cell. Which of the following choices could
be a good next step to try? (Choose all options that might be a good idea to try.) -
ANSWER-- Adjust the iris diaphram
- Switch to a different objective lens
- Remake the slide (sometimes, by luck, you didn't get any of the cells we are looking
for)
- Twist the fine focus knob to bring better focus
- Adjust the oculars so you can see more clearly
- Use the movement knobs to see a different part of the slide
- Use the coarse focus knob to bring better focus
(All answers)
You are observing a slide of green cells under the 4X objective. Each cell covers
approximately 1/8th of the width of your field of view. At least, that is what it seems
like...it is hard to get the sample cells to line up exactly and stop rotating. How large
of a diameter do these cells have? Choose the best answer to report to a colleague.
- ANSWER-Each cell is approximately ~500-600 micrometers in diameter,
accounting for inaccuracies and variability.
Cells are the basic unit of life. In the Cells lab, we'll observe several different kinds of
cells. Which of the following answers are true? (Pick all correct answers for credit) -
ANSWER-- Eukaryotic cells are usually distinguished from prokaryotic cells by
membrane-bound organelles.
, - All cells come from pre-existing cells.
- Cells vary in size across orders of magnitude.
To answer this question, you'll need to look at the Course Policies document
(available on the website).
Match the assignment to the number of points that it is worth for this term of Bio200.
- ANSWER-Exam 2: 100
All exams combined: 400
Clickers: 70
Reading Quizzes: 74
Contribution on the Piazza Discussion Board: not part of grading
Labs: 88
Lab 2: Enzyme Activity
Proteins are formed by linking basic building blocks together. These building blocks
are called 'amino-acids', and there are ~20 different kinds of amino-acids. Each has
a characteristic structure, which you should review in your Freeman textbook.
Once you've done that, put the following parts of the enzyme-forming process in
order as best you can. Like any pre-lab, the purpose of this question is not to give
you a hard exam but rather to guide your reading of the lab report and background
materials.
The earliest step is: - ANSWER-Formation of amino-acid building blocks
Proteins are formed by linking basic building blocks together. These building blocks
are called 'amino-acids', and there are ~20 different kinds of amino-acids. Each has
a characteristic structure, which you should review in your Freeman textbook.
Once you've done that, put the following parts of the enzyme-forming process in
order as best you can. Like any pre-lab, the purpose of this question is not to give
you a hard exam but rather to guide your reading of the lab report and background
materials.
The second step is: - ANSWER-The first part of the protein folds due to side-chain
and backbone interactions
Proteins are formed by linking basic building blocks together. These building blocks
are called 'amino-acids', and there are ~20 different kinds of amino-acids. Each has
a characteristic structure, which you should review in your Freeman textbook.
Once you've done that, put the following parts of the enzyme-forming process in
order as best you can. Like any pre-lab, the purpose of this question is not to give
you a hard exam but rather to guide your reading of the lab report and background
materials.
The third step is: - ANSWER-Joining amino-acids into a polymer like beads on a
string (this order is the 'primary structure')
