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Life: The Science of Biology, Tenth Edition
Sadava • Hillis • Heller • Berenbaum
Chapter 1: Studying Life
TEST FILE QUESTIONS
(By Richard Shingles)
Multiple Choice
1. The basic structural and physiological unit of all living organisms is the
a. aggregate.
b. organelle.
c. organism.
d. membrane.
e. cell.
Answer: e
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 1. Remembering
2. A cell
a. can be composed of many types of tissues.
b. is found only in plants and animals.
c. is the smallest entity studied by biologists.
d. may be a distinct entity or a building block of a more complex organism.
e. All of the above
Answer: d
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 2. Understanding
3. The Curiosity rover is currently searching for signs of life on Mars. What kind of
evidence would most likely indicate the presence of living organisms on Mars?
a. Fossilized prokaryotic cells
b. Different nucleic acids and amino acids than those found on Earth
c. Fatty acid molecules
d. Complex molecules containing genetic information
e. Simple organic molecules
Answer: d
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 5. Evaluating
4. Which of the following is not true of life?
a. Life has a common ancestry.
© 2014 Sinauer Associates, Inc.
,b. Life is made up of living organisms.
c. Living organisms are all descended from a common origin.
d. Life has multiple origins.
e. Life has striking similarities across gene sequences.
Answer: d
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 2. Understanding
5. Earth is approximately _______ years old.
a. 5.5 million
b. 40–50 million
c. 4.5 billion
d. 5 trillion
e. 40 trillion
Answer: c
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 1. Remembering
6. There has been life on Earth for approximately _______ years.
a. 10 thousand
b. 4 million
c. 100 million
d. 1 billion
e. 4 billion
Answer: e
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 1. Remembering
7. The oldest rocks on Earth are approximately _______ years old.
a. 4,000‒5,000
b. 400,000‒500,000
c. 2–3 million
d. 4–5 billion
e. 8 billion
Answer: d
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 2. Understanding
8. The seed of a desert plant may be dormant for many years without growing, but is still
considered to be alive because it
a. is always converting molecules.
b. possesses heritable information.
c. is always regulating its internal environment.
d. is reproducing.
e. is extracting energy from its environment.
Answer: b
© 2014 Sinauer Associates, Inc.
, Textbook Reference: 1.1
What Is Biology?
Bloom’s Category: 2. Understanding
9. Which of the following statements about viruses is true?
a. They do not mutate and evolve.
b. They do not contain genetic information.
c. They carry out physiological functions on their own.
d. Their existence depends on cells.
e. Biologists do not consider viruses to be part of life.
Answer: d
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 4. Analyzing
10. The critical step for the evolution of life was the
a. formation of fatty acids.
b. formation of simple molecules.
c. appearance of proteins that could replicate themselves.
d. appearance of nucleic acids that could replicate themselves.
e. synthesis of proteins.
Answer: d
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 2. Understanding
11. Cellular structure occurs due to
a. an aggregation of cells.
b. the synthesis of proteins with stable shapes.
c. the enclosure of biological molecules by a membrane.
d. complex proteins being dissolved in water.
e. the formation of reactants and products.
Answer: c
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 2. Understanding
12. To fuel cellular metabolism, early prokaryotes
a. took in small molecules directly from the environment.
b. fed on other prokaryotes.
c. converted oxygen into biological energy.
d. transformed the energy of sunlight into biological energy.
e. Both a and d
Answer: a
Textbook Reference: 1.1 What Is Biology?
Bloom’s Category: 2. Understanding
13. The chemical formula for oxygen gas is
a. O.
b. O2.
© 2014 Sinauer Associates, Inc.
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