Exam (elaborations)

BLG1501 MULTIPLE CHOICE QUESTIONS AND ANSWERS ON ALL PRESCRIBED CHAPTERS

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Course
BLG1501 - Basic Biology (BLG1501)

Institution
University Of South Africa (Unisa)

Book
Biology

BLG1501- MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS TO MAXIMISE YOUR PREPARATION FOR YOUR UPCOMING BLG1501 EXAMINATION.

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Uploaded on May 11, 2020
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Type Exam (elaborations)
Contains Questions & answers

blg1501
stuvia
biology
biology1501
unisa

Book Title:Biology

Author(s):Neil A. Campbell, Lisa A. Urry

Edition:maart 2014
ISBN:9781292008653
Edition:10

Summary
AP Biology Notes Comprehensive Review of Campbell and 5 Steps to a 5
Summary
Samenvatting Biology: A Global Approach Global Edition Chapter 12, 13, 14, 15, 23, 47
Summary
Samenvatting Biology: A Global Approach Global Edition Chapter 16, 17, 18, 19.1, 19.2, 20

Institution
University of South Africa (Unisa)
Course
BLG1501 - Basic Biology (BLG1501)

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BLG1501
COMPREHENSIVE
MULTIPLE CHOICE QUESTIONS (MCQ)
ALL PRESCRIBED CHAPTERS FOR BLG1501
Biology: A Global Approach, Global Edition, 11 th Edition

HINTS:
➢ Be sure to understand the question.
➢ Come up with your own answer first.
➢ Look and understand why the right answer is right.
-----------------------------------------------------------------------------------------------------------------------

Chaper 1- Introduction: Biology and Its Themes
1. Which of the following is an attribute of living things? (Concept 1.0)
A. They must be dependent on oxygen.
B. They must utilize energy from sunlight, either directly or indirectly.
C. They must be capable of acquiring adaptations through evolution.
D. They must be able to reproduce sexually.

2. Which of the following is NOT an attribute of living things?(Concept 1.0)
A. They convert energy from one form to another.
B. Populations of living things evolve.
C. All living things require oxygen.
D. All living things maintain complexity of order.
3. What is the appropriate term for an interacting group of individuals of a single type occupying a
defined area? (Concept 1.1)
A. ecosystem
B. community
C. species
D. population
4. Emergent properties of living systems are properties that __________.(Concept 1.1)
A. define the cell's surroundings
B. are apparent only when an organism is studied at the molecular level
C. are due to the arrangement and interactions of parts as complexity increases
D. are evident during only one portion of the life cycle of an organism
5. Which of the following statements best describes the phenomenon of "emergence"?
(Concept 1.1)
A. The whole is greater than the sum of the parts.
B. Emergence is best observed only at the microscopic level of biology or the atomic level of chemistry.
C. The sum of the parts is greater than the whole.
D. Only life displays emergence.
6. Which of the following systems does NOT display emergent properties? (Concept 1.1)
A. a calculator
B. a drop of water
C. a colony of bees
D. None of the listed responses is correct.

,7. Which of the following can best be considered a biological system? (Concept 1.1)
A. a pond
B. a single liver cell
C. the biosphere
D. All of the listed responses are correct.
8. In an ecosystem, nutrients __________ and energy __________.(Concept 1.1)
A. are recycled ... flows through
B. flow through ... is recycled
C. are wasted ... is burned
D. are created ... is lost
9. The energy used by most organisms for metabolism and growth ultimately comes from
__________. (Concept 1.1)
A. carbon dioxide
B. decomposition of plants and other organic debris
C. the sun
D. heat
10. Which of the following is the fundamental unit of structure and function in living organisms?
(Concept 1.1)
A. tissue
B. cell
C. organ
D. organelle
11. What is the molecule that is responsible for both the unity and the diversity of life?
(Concept 1.1)
A. protein
B. lipids
C. ribosomes
D. DNA
12. How is the information encoded in DNA actually used by organisms? (Concept 1.1)
A. Proteins are built directly from the information in the DNA.
B. DNA is translated into protein and then transcribed to RNA.
C. The information in DNA is transcribed to RNA and then usually translated into protein.
D. DNA migrates throughout the cell and interacts directly with other molecules in the cytoplasm.
13. Which of the following domains is prokaryotic? (Concept 1.2)
A. Eukarya
B. Protists
C. Fungi
D. Archaea
14. Which type of organisms within the domain Eukarya is composed of organisms that are
generally unicellular (single-celled)? Concept 1.2)
A. protists
B. animals
C. fungi
D. plants
15. Eukaryotic organisms that decompose dead organisms and absorb the nutrients are generally
found in which kingdom? (Concept 1.2)
A. Fungi
B. Bacteria
C. Plantae
D. Archaea
16. Evolution tends to act at which of the following levels? (Concept 1.2)
A. kingdom
B. population
C. species
D. domain

,17. Which of the following observations and inferences led Charles Darwin to his theory of natural
selection as a mechanism for evolution?(Concept 1.2)
A. Individuals with heritable traits best suited to the local environment will generally produce a
disproportionate number of healthy, fertile offspring.
B. Individuals in a population of any species vary in many heritable traits.
C. A population of any species has the potential to produce far more offspring than will survive to produce
offspring of their own.
D. Darwin synthesized his theory of natural selection from all of the listed observations and inferences.
18. With evolution as the core theme of biology, we can explain traits shared by organisms as
evidence of __________ and traits that differ among organisms as evidence of __________.
(Concept 1.2)
A. coincidence ... adaptation
B. systems biology ... reductionism
C. descent from a common ancestor ... adaptation through natural selection
D. descent from a common ancestor ... chance
19. Experimentation is only one part of the process of scientific inquiry, but it is a very important
step because it __________.(Concept 1.3)
A. allows scientists to control all aspects of the system
B. ensures that the variable being tested is measured without error
C. allows rejection of hypotheses
D. ensures that hypotheses can be confirmed with certainty
20. Radon is a radioactive gas that seeps into homes from the soil. It is thought to be a cause of
lung cancer. A research team investigates this hypothesis. The members of the team gather
large amounts of data on basement radon concentrations and lung cancer rates and conclude
that the more radon there is in a home, the more likely are people living in the home to develop
lung cancer. After the study is published, other researchers criticize it by asserting that the
studied neighborhoods with higher radon concentrations also have a higher percentage of
older people and a higher percentage of cigarette smokers than the low-radon neighborhoods.
Both advanced age and cigarette smoking increase the risk of lung cancer. This criticism, if
correct, shows that the radon study suffered from __________.(Concept 1.3)
A. nonsystematic observation and analysis of data
B. uncontrolled variables
C. a lack of replication
D. an untestable hypothesis
21. Which of the following statements most clearly demonstrates inductive reasoning?
(Concept 1.3)
A. A paramecium moves by means of the rhythmic motion of its cilia.
B. If the animals observed require organic molecules as nutrients, then it can be concluded that all animals
require organic molecules as nutrients.
C. Because worms lack bones, they are classified as invertebrates.
D. If all flying animals are birds, then it can be concluded that bats are birds.
22. A team of scientists has devised a new chemical fertilizer that its members believe will increase
crop yields. The team planted three garden plots with corn. The soil was similar in each, and
equal amounts of water were applied to each plot. One plot was treated with a common
commercial fertilizer, another was treated with the new fertilizer, and the third plot was not given
any fertilizer. The experimenters measured yields as bushels of corn from each plot. The plot
that did not receive fertilizer was the __________.(Concept 1.3)
A. experimental plot
B. control plot
C. dependent variable
D. controlled variable
23. A hypothesis must be testable to be scientifically valid. Being testable and falsifiable means
that __________. (Concept 1.3)
A. only a controlled experiment can prove whether the hypothesis is correct or incorrect
B. some conceivable observation or experiment could reveal whether a given hypothesis is incorrect
C. the hypothesis has been proved wrong
D. there must be several options in the hypothesis to choose from, one of which is correct

, 24. At which point in a study is a scientific investigator most likely to use deductive reasoning?
(Concept 1.3)
A. in rephrasing an alternative hypothesis
B. during the formulation of a hypothesis
C. in establishing a test of a hypothesis
D. during initial observation(s)
25. Which of the following is OUTSIDE the realm of scientific inquiry? (Concept 1.3)
A. addressing ethical dilemmas
B. explaining naturally occurring events
C. formulating testable hypotheses in seeking natural causes for natural phenomena
D. determining the physical causes for physical phenomena
26. A company was testing a new drug it thought would help decrease the risk of transmission of
viruses from mother to fetus. In an experiment to test the compound, an investigator gave 400
pregnant female rats a small dose of the experimental drug and inoculated each with a type of
virus known to cause disease in rats. At the same time, 400 other pregnant rats were given only
the virus. Of the rat pups born to the females that received both the virus and the drug, 197
showed no symptoms of the disease; 205 rat pups born to the virus-only females showed
symptoms. From these data, we can best conclude __________.(Concept 1.3)
A. that the drug seems to have little effect on viral transmission at the dosage given
B. nothing, because no independent variable could be identified
C. nothing, because no control group was used in the test of the drug
D. that the drug is effective and testing on humans should begin
27. The best method for determining whether bean plants require sodium is to __________.
(Concept 1.3)
A. grow bean plants with and without sodium
B. measure how fast radioactive sodium enters the plant
C. measure the amount of sodium in a few bean plants
D. look for sodium in leaf tissues using autoradiography
28. Repetition of an experiment _________.(Concept 1.3)
A. should always be done by changing a variable
B. is not necessary if the scientist obtains enough background information
C .is too difficult for researchers doing fieldwork
D. is necessary before concluding that a given set of results is correct
29. Should an experiment test only one variable at a time? Why or why not? (Concept 1.3)
A. As long as the experiment is repeated a sufficient number of times, it does not matter how many
variables are used.
B. Yes, an experiment should test only one variable at a time. That way, the experiment will have to be
performed only once.
C. Yes, an experiment should test only one variable at a time. This ensures that the experimental outcome
is clearly due to one identifiable factor.
D. No, it is not necessary to test only one variable per experiment, especially when time is of the essence.
30. A scientific theory is __________.(Concept 1.3)
A. not correct unless it is several years old
B. a poorly supported idea that has little backing but might be correct
C. a well-supported concept that has broad explanatory power
D. the same thing as a hypothesis

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