BIO1140-2024-Midterm-Marking scheme-Section C
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BIO1140-2024-Midterm-Marking scheme-SECTION C 20 MCQ (20 marks) and 5 SAQ (14 marks) MCQ1.
The method of scientific inquiry that draws conclusions from careful observations to formulate a tentative answer is known as which of the following? A. predictive science B.
deductive reasoning C.
inductive reasoning D.
quantitative science E.
qualitative science Correct Answer: C MCQ2.
The vast majority of molecular interactions are: A.
transient B.
permanent C.
of extremely high affinity D.
of strong affinity Correct Answer: A MCQ3.
What unit of length would you generally use to give the measurement of a typical human cell? A.
Centimeters B.
Nanometers C.
Millimeters. D.
Micrometers. E.
Meters Correct answer: D MCQ4.
Molecules that have high affinity for each other will: A.
remain bound to each other for a relatively long amount of time. B.
remain bound to each other for a relatively short amount of time. C.
not bind to each other. D.
covalently attach to each other once they bind. E.
Bind to each other permanently. Correct Answer: A
BIO1140-2024-Midterm-Marking scheme-SECTION C MCQ5.
A water sample from a hot thermal vent contained a single-celled organism that lacked a nucleus. What is its most likely classification? A.
Eukarya B.
Archaea C.
Animalia D.
Protista E.
Fungi Correct Answer: B MCQ6.
Which of the following statements about the evolution of present-day organisms are true? I.
Eukaryotes preceded prokaryotes. II.
Eukaryotes arose from eubacteria long after archaebacteria and eubacteria had diverged from each other. III.
Eukaryotes acquired chloroplasts before they acquired mitochondria. IV.
Eukaryotes acquired mitochondria before the acquired chloroplasts. V.
Endoplasmic reticulum was created by membrane infoldings. A.
IV, V B.
II, III C.
I, III D.
III, V E.
II, IV Correct Answer: A MCQ7.
Which of the following statements about mutations are true? I.
Mutations are always harmful to an organism. II.
Mutations are always beneficial to an organism. III.
Mutations are essential for evolution to occur. IV.
Mutations always lead to evolution. V.
Mutations occur naturally. A.
I, III, IV, V B.
II, III, IV, V C.
III, V D.
III, IV E.
II, V Correct Answer: C
BIO1140-2024-Midterm-Marking scheme-SECTION C MCQ8.
All DNA in a cell constitute its ____________. A.
Genetics B.
Genome C.
Gene D.
Biology E.
Energy Correct Answer: B MCQ9.
The lipid bilayer is held together mainly by: A.
Covalent bonding between membrane lipids. B.
Hydrogen-bonding between the phospholipid tails. C.
Repulsion between the phospholipid tails and water. D.
Covalent bonding between the ends of phospholipid tails in opposite layers. E.
Hydrogen-bonding between the head groups of phospholipids Correct Answer: C MCQ10.
Which of the following movements can a membrane protein make by lateral diffusion through the lipid bilayer? A.
Movement from the apical plasma membrane to the basal plasma membrane in a gut epithelial cell. B.
Movement from the outer nuclear membrane to the inner nuclear membrane. C.
Movement from the outer mitochondrial membrane to the inner mitochondrial membrane, D.
Movement from the outer nuclear membrane to the endoplasmic reticulum E.
Non of the above. Correct Answer: D. MCQ11.
In a typical animal cell, which of the following types of transport occur through a channel protein? A.
Movement of amino acids into a cell. B.
Movement of Na+ out of a cell. C.
Movement of Na+ into a cell. D.
Movement of glucose into a starved cell. E.
Movement of glucose out of a starved cell. Correct Answer: C.
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Related Questions
What is falsification?
Lütfen birini seçin:
O A. Manipulating research process or changing/omitting data
O B. Acting to prevent others from completing their work
O C. Providing false information concerning a formal academic exercise
O D. Making up data or results without performing any experiments
O E. Assuming somebody else's identity with intent to provide an advantage
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Multiple Choices. Direction: WRITE THE WORD OF the correct answer.
A. Read the description of Jose's science investigatory below. Then Answer the questions
that follow. Write the word/s of the correct answer.
Jose investigated the fungicidal ability of akapulko leaf extracts to kill the fungus that causes athlete's
foot. To extract the antifungal chemicals in the akapulko leaves, he used different liquids such as distilled
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also recommended that more study be done on other disease-causing fungi.
Jose further improved on his science investigatory project by quantifying the effectiveness of
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Why is a variable included in an experiment?
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Differentiate discovery-based from hypothesis-driven science?
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1. compare findings to previous research
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A. Data Collection Process
B. Research Design
C. Composition of the sample
D. Research Instrument2. The researcher chose samples based on convenience or by snowball sampling technique. As a researcher, you know that this can cause bias because one of the sources of bias related to this is?
A. Selection of individual subjects
B. Attitudes or motivation of the researcher
C. Sample
D. Composition of the sample3. The researcher directs the study by grouping the subjects according to the control and experimental group. This is called:
A. Randomization
B. Bias
C. Manipulation
D. Control
4. The researcher controls the treatment or intervention of the research by giving specific different interventions to the control and experimental group This is called?
A. Control
B. Randomization
C. Bias
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Match the outcomes to whether they are obtained from manipulative experiments or
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1
2
2
Inference of causality
Tests for patterns and
possible processes under
natural conditions
Tests of causes that are
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1. Manipulative experiments
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6. Why should the science teacher be mindful of the history of science and
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7. Describe the scientific community (include characteristics of scientific
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8. Why will you say that science is a social product?
9. Explain the term integrated science.
10. State the rationale for the teaching of integrated science.
11. Justify the teaching of integrated science in relation to…
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(1 question with multiple steps please answer)
Identify the component characteristics of a scientific investigation
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The societal implications of a study and suggestions for future research strategies would be found in the
section of a scientific report.
introduction
discussion
O literature cited
O materials and methods
results
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INSTRUCTION: Classify the following researches based on the different types of Research. (no need for explanation)
As of objectives:
1 - Descriptive
2 - Correlational
3 - Exploratory
4 - Explanatory
A.Wealthy people are less likely to be patient
B. Observation of ants in the forest.
C. The impact of the inclusion of a school transport on the punctuality levels of the students is studied
D. A particular orthopedic surgeon has the highest success rate for performing knee surgeries. A lot of other hospitals or doctors have taken up this case to understand and benchmark the method in which this surgeon does the procedure to increase their success rate.
E. A study interested in why certain groups of trees are dying, while others of the same type and in the same location are thriving, can observe the trees and their surrounding environment to come to a preliminary decision.
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I answered with a and c but keep getting told its the wrong answer.
Which of the following is not a component of effective experimental designs in the early stages of a scientific study?
Select one or more:
a. small sample sizes
b. experimental groups taking a placebo
c. double blind experiments
d. short duration
e. animal models
f. repetitive testing
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Was the reported study data in this exercise qualitative or quantitative? Explain your answer by referencing the definitions of each data type.
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C. To justify the chosen research topic
D. To serve as reference in developing the hypothesis2. The difference between facts and theory is that theory is
A. more complex
B. Less broad
C. more concrete
D. less concrete3. In preparing your research proposal you know that the four major section are the following except:
A. Introduction
B. Summary
C. Conclusion
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8
A science is defined by
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a. its depth of knowledge.
b. its concern with solving real-life practical problems.
c. its popularity among the general public.
d. its approach to dealing with evidence.
e. A and B
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Lütfen birini seçin:
O A. Indexing of references between publications.
O B. Stating that a published article is no longer a valid source of knowledge.
O C. Intentional misrepresentation of results by making up data.
O D. Failure to account for measurement error.
O E. A list of corrected errors in a book or a journal.
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a. Abstract
b. Introduction
c.Materials and Methods
d. Results
e.Discussion
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1. What are the necessary
components of a good hypothesis?
2. How does a hypothesis differ from
a theory?
3. What are the common features of
Experimental Design?
4. What is a peer reviewed journal
publication and why is it important?
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The 'control group' is an essential component of an experiment. This is because
1. A control group allows one to determine if a particular result is due to the experimental variable.
2. No, it's not essential in experimentation. A control group is not always necessary it depends on the experiment.
3. A control group allows for multiple variables to be tested at the same time.
4. A control group is required for the development of a prediction.
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month, the student measures the height of the plants again.
Height At
End (cm)
Amount of
Amount of
Height at
Start (cm)
Water Weekly Sunlight Daily
(L)
(hrs)
Plant 1
0.7
8.
Plant 2
0.1
8
Plant 3
0.5
8.
6.5
Plant 4
0.3
85
8
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4.
5.
1. True positive; Sensitivity: True negative ;
2. S-CVI: .90 or higher : I-CVI;,
3. Nominal; Categories:
6.
Predictive validity; future:
Ranks
past: Prospective ; future
; Concurrent validity
; rows and columns : Textual form; statements with numerals
7. Systematic Review; experimental research:
experimental research
; experimental and non-
3. Multiple Qualitative studies; Meta-synthesis: Multiple Quantitative studies;
Most number of responses:
: Central position; Median
Comparison of more than two groups with one independent variable; ANOVA: Comparison of more than two
groups with two or more independent variables; Factorial ANOVA
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a.
RCTs can be expensive, which can make it difficult if funding is limited
b.
RCTs can be time-consuming, and it may take months and sometimes years to obtain final results
c.
For certain research questions and/or certain types of exposure variables, it may not be ethical to conduct an RCT
d.
RCTs are less valid than observational analytical study designs
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