Bio lab Midterm.
What are the magnification powers of the objective lenses on the microscopes? Select one: a. 10X, 50X, 100X b. 4X, 10X, 40X c. 4X, 20X, 100X d. 2X, 10X, 50X
4X, 10X, 40X
a concentration gradient is best described as a. A difference in concentration of a substance between two areas b. the random motion of molecules c. the movement of molecules from an are of high to an area of low concentration d. the color change created as molecules go from hot to cold
A difference in concentration of a substance between two areas
Which of the following are helpful in finding appropriate references for your lab report? a. Google Scholar b. Library searchable databases c. A librarian d. All of the above
All of the above
All of the following are true except ___. a. Refer to the graph within the Results section b. The graph should follow the Results section c. Always interpret the data at the end of the Results section d. The axes of the graph must be labeled and include the units of measurement e. All of the above
Always interpret the data at the end of the Results section
All of the following are true except ___. a. Refer to the graph within the Results section b. The graph should follow the Results section c. Always interpret the data at the end of the Results section d. The axes of the graph must be labeled and include the units of measurement e. All of the above
Always interpret the data at the end of the Results section
All of the following are true except ___. a. Refer to the graph within the Results section Incorrect b. The graph should follow the Results section c. Always interpret the data at the end of the Results section d. The axes of the graph must be labeled and include the units of measurement e. All of the above
Always interpret the data at the end of the Results section
Which solution in this week's experiment contained the highest concentration of sugar? A B C
B
This sentence should be included in which section? - The increase in hormone production in fish has been linked to several pollutants (Smith 1998). a. Introduction b. Materials and Methods c. Results d. Discussion e. Both A and D
Both A and D
the random motion of molecules due to molecular energy is called: a. Brownian motion b. electrostatic motion c. spontaneous motion
Brownian motion
The SLU Writing Center is located in ____. a. Biology Bldg., room. 210 Incorrect b. D. Vickers Hall, room 383 c. D. Vickers Hall, room 104 d. First Floor of the Library
D. Vickers Hall, room 383
The Results section of the lab report should not___. a. Summarize the data by describing initial and final measurements b. Use averages or percents to summarize data c. Describe trends within data d. Describe every data point recorded during the experiment e. All of the above
Describe every data point recorded during the experiment
All are true regarding the Introduction except ___. a. States the problem b. States the question to be answered c. Describes experimental setup d. States the purpose of the experiment
Describes experimental setup
All are true of the Discussion section except___. a. Relates results of experiment to background information b. Explains how experiment was conducted c. Includes a conclusion on the null hypothesis d. All are correct
Explains how experiment was conducted
What is the purpose of the Discussion section? a. Identifies the subject area of interest b. Reports results that will support the answer to the question or problem c. Explains how the experiment was conducted d. Interprets the results and explains what happened in the experiment
Explains how the experiment was conducted
Which of the following are appropriate sources to cite in your lab report? Select one: a. Encyclopedia b. Dictionary c. Lab manual d. Wikipedia e. Both C and D
Lab manual
Which of the following is the best written sentence? a. Squirrels aren't choosy when it comes to nuts. b. Most squirrels don't like millet, but do enjoy sunflower seeds. c. Most squirrels enjoy sunflower seeds, but aren't fond of millet. d. Most squirrels prefer sunflower seeds over millet seeds.
Most squirrels prefer sunflower seeds over millet seeds.
Which of the following is the best written sentence that includes the information below taken from an article written by Dr. Costanza, but avoids plagiarism? -A decade of research from Sunshine Health Clinic has shown that 20 minutes of exercise a day can decrease cholesterol and promote weight loss. a. "The Sunshine Health Clinic has shown that 20 minutes of exercise a day can decrease cholesterol and promote weight loss." b. Research has shown that exercising 20 minutes a day can help an individual lower their cholesterol and lose weight (Costanza 2010). c. "The Sunshine Health Clinic has shown that 20 minutes of exercise a day can decrease cholesterol and promote weight loss." (Costanza 2010). d. None are correct
Research has shown that exercising 20 minutes a day can help an individual lower their cholesterol and lose weight (Costanza 2010).
A cell containing a high concentration of solute is submerged in fresh water. Which of the following will happen? a. Water will move into the cell b. Water will move out of the cell c. The cell will shrink d. Solute will move into the cell
Water will move into the cell
Which of the following is not one of the three components of cell theory? a. all cells are prokaryotic or eukaryotic b. cells are the basic unit of life c. cells arise from other cells d. all living things are composed of cells
all cells are prokaryotic or eukaryotic
Plagiarism is _____. a. considered cheating b. a violation of the honors code of the university c. grounds for receiving zero credit for an assignment d. the use of another person's work represented as your own e. all of the above
all of the above
Which of the following are helpful in finding appropriate references for your lab report? a. Google Scholar b. Library searchable databases c. A librarian d. All of the above
all of the above
proteins are made up of multiple _____ joined by peptide bonds. a. monosaccharides b. amino acids c. polymers d. sugars
amino acids
what element is at the center of organic molecules? a. carbon b. carbon dioxide c. hydrogen
carbon
As magnification increases, depth of field ______________. a. decreases b. increases c. stays the same
decreases
As magnification increases, field of view ______________. a. stays the same b. Increases c. decreases
decreases
Which type of reasoning uses previous generalizations to draw conclusions? (For example, concluding that algae, which shares many characteristics with plants, must also be made up of cells.) a. deductive b. reductive c. inductive
deductive
The thickness of a specimen that can be viewed with one plane of focus (like a single page in a book) a. magnification b. resolution c. field of view d. depth of field
depth of field
which of the following are not macromolecules? a. proteins b. disaccharides c. starches
disaccharides
starches' main function is? a. insulation b. carrying genetic information c. energy storage
energy storage
which of the following are all examples of lipids: a. vitiaman A, veg oil, nucleic acids b. veg oil, wax, cellulose c. phospholipids, amino acids, chloesterol d. fat, cholesterol, vitamin A
fat, cholesterol, vitamin A
The area that can be seen when looking through the microscope is the a. magnification b. resolution c. field of view d. depth of field
field of view
A brief description of the graph placed below the figure is known as the ____.
figure legend
A brief description of the graph placed below the figure is known as the ____. a. X- Axis b. Y-Axis c. Figure legend d. Literature Cited
figure legend
which organelle specializes in distributing secretory proteins? a. golgi apparatus b. ribosome c. mitochondrion d. lysosome
golgi apparatus
Long quotations ___.
have no place in a lab report.
A cell containing a high concentration of solute is submerged in fresh water. The interior of the cell is described as: a. Hypotonic b. Hypertonic c. Isotonic d. Salty
hypertonic
As magnification increases, resolution ______________. a. increases b. decreases c. stays the same
increases
What kind of reasoning uses observations to make generalizations about natural phenomena? (for example, looking at a slice of a plant under a microscope, seeing the block-like shapes making up the tissue, and concluding that this plant is made up of cells.) a. reductive b. inductive c. deductive
inductive
Name the independent variable in the following null hypothesis: The color of ink has no effect on termites following the line or not. a. termites following or not following the line b. ink color c. type of paper
ink color
What is the first step of the scientific method? a. draw conclusions b. perform an experiment c. make observations d. form a hypothesis
make observations
The use of third person past tense is____. a. optional b. awkward and misleading c. never appropriate d. mandatory with the possible exception of the Discussion section
mandatory with the possible exception of the Discussion section
which is a characteristic that prokaryotic cells do not have and that all eukaryotic cells do? a. plasma membrane b. membrane bound nucleus c. genetic material d. cell wall
membrane bound nucleus
which is not one of the three characteristics of all cells? a. plasma membrane b. membrane bound nucleus c. genetic material d. abiility to perform chemical reactions
membrane bound nucleus Correct
this large molecule is made up of many repeating units: a. monosaccharide b. micromolecule c. macromolecule d. macrosaccharide
micromolecule
which organelle speciealizes in energy production? a. golgi apparatus b. ribosome c. mitochondrion d. lysosome
mitochondrion
polysaccharides are made up on multiple____ a. lipids b. starches. c. monosaccharides d. macromolecules
monosaccharides
Total magnification is calculated by Select one: a. multiplying the power of the objective lens by two. b. multiplying the powers of the ocular and objective lenses c. adding the powers of the ocular and objective lenses d. multiplying the powers of the objective lenses together
multiplying the powers of the ocular and objective lenses
Citations in the text of the lab report ____. a. do not need to be included in the Literature Cited section. b. must include the page number. c. are optional. d. are only necessary if the Literature Cited is omitted e. must also appear in the Literature Cited section.
must also appear in the Literature Cited section.
Which of the following writing styles are acceptable to use in preparing your lab report? a. APA b. MLA c. NSF d. None of the above
none of the above
The Literature Cited section can be written using the following writing styles: Select one: a. APA b. MLA c. NSF d. None of the above ( follow the handout)
none of the above (follow the handout)
What kind of hypothesis states that the experimental treatment (the independent variable) will have no effect on the outcome of the experiment (the dependent variable)? a. dependent b. independent c. null d. alternative
null
What kind of hypothesis states that the experimental treatment (the independent variable) will have no effect on the outcome of the experiment (the dependent variable)? a. dependent b. independent c. null d. alternative
null
In the Ant-B-Gone experiment, what was the dependent variable? a. whether or not pesticide was used b. the control c. number of dead ants
number of dead ants
The lens above the stage, that you put the specimen directly under, is the ______ lens. a. magnifying b. reductive c. ocular d. objective
objective
The lens you put your eyes up to is the ___________ lens. a. reductive b. ocular c. objective d. magnifying Feedback
ocular
Which of the following markings did the termites pay the least attention to? a. pencil b. blue pen c. black pen
pencil
Which of the following markings did the termites pay the least attention to? a. pencil b. blue pen c. black pen
pencil
multiple, monomers, when joined form? a. monsaccharides b. polymers c. lipids d. amino acids
polymers
which of the following is a eukaryotic group? a. Protista b. Bacteria c. Archaea
protista
The minimum distance between two objects at which they appear separate. a. resolution b. field of view c. magnification d. depth of field
resolution
which organelle is responsible for protein synthesis? a. golgi apparatus b. ribosome c. mitochondrion d. lysosome
ribosome
molecules dissolved in water are referred to as a. solvent b. solute c. tonics d. quarks
solute
glucose, frutose, lactose, and sucrose are all: a.macromolecules b. sugars
sugars
which of the following are the factors that affect diffusion rates? a. temperature, steepness of concentration gradient, and the size of the molecules diffusing b. temperature, steepness of concentration gradient, and electrostatic repulsion c. Steepness of concentration gradient, size of molecules diffusing, and ratio of lipids to carbohydrates
temperature, steepness of concentration gradient, and the size of the molecules diffusing
Name the dependent variable in the following null hypothesis: The color of ink has no effect on termites following the line or not. a. Ink color b. type of paper c. termites following the line or not
termites following the line or not
Which of the following does not belong in the Discussion section? Select one: a. The results of this experiment suggest Miracle Grow fertilizer is the best plant food. b. The average height of tomato plants treated with Miracle Grow fertilizer was 177cm. c. Tomato plants grow best in Miracle Grow due to the balanced concentration of the fertilizer. d. All of the above belong in the Discussion e. both B and C do not belong in the Discussion
the average height of tomato plants treated with miracle grow fertilizer was 177cm.
In the Ant-B-Gone experiment, what would you call the ant mounds that were sprayed with water but not treated with pesticide? a. the control b. the independent variable c. the dependent variable
the control
In the Ant-B-Gone experiment, what would you call the ant mounds that were sprayed with water but not treated with pesticide? a. the control b. the independent variable c. the dependent variable
the control
Osmosis refers specifically to a. the diffusion of water molecules across a membrane b. the diffusion of water molecules across a void c. the movement of a cell from wet to dry areas d. the diffusion of oxygen across a membrane
the diffusion of water molecules across a membrane
diffusion is best described as: a. the random motion of molecules b. the movement of molecules from an area of low to an area of high concentration c. the movement of molecules from an are of high to an area of low concentration d. a difference in the concentration of a substance between two areas
the movement of molecules from an are of high to an area of low concentration
Graphs are produced ____. Select one: a. with colored pencils b. by the SLU Writing Center c. using a computer program d. for the entire class by the instructor
using a computer program
a control present in all of the experiments last week was: a. water b. starch solution c. egg white d. glucose soultion
water
In the Ant-B-Gone experiment, what was the independent variable? a. whether or not pesticide was used b. number of dead ants c. the control
whether or not pesticide was used