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Cambell Bio Ch 1 > Practice Test 1 > Flashcards

Practice Test 1 Flashcards

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Biology 101 flashcards
1
Q

Which of the following would be a characteristic of life?

A

a)Acquires energy

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2
Q

Water has a high heat of vaporization largely because

A

c) Hydrogen bonds form between the hydrogen atoms of one water molecule and the oxygen atoms of other water molecules

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3
Q

What is a hypothesis?

A

a) a testable question

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4
Q

The middle electron shell of an atom that has three full shells contains__electrons

A

b) 8

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5
Q

What is the basic difference between covalent and ionic bonds?

A

b) In covalent bonding, the partners share a pair(s) of electrons; in an ionic bond, one partner captures an electron from the other

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6
Q

The most basic independent unit of life is the

A

b) Cell

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7
Q

The bonds that are broken when water vaporized are

A

c) Hydrogen bonds between water molecules

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8
Q

Why does ice float on water?

A

c) Hydrogen bonds keep the molecules of ice farther apart than in liquid water

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9
Q

Sugars dissolve in water. This property is called

A

b) Hydrophilia

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10
Q

The level of organization that includes cells of similar structure and function would be a(n)

A

b) Tissue

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11
Q

After formulating a hypothesis, a scientist

A

b) Tests the hypothesis

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12
Q

The Gaia hypothesis states that

A

d) The earth is one huge ecosystem and environmental problems should be addressed with this in mind

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13
Q

According to the 2nd Law of Thermodynamics, energy transformations usually lose energy in what form?

A

a) Heat

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14
Q

Bioformatics is

A

a) The use of software that extracts information from high-throughput technology

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15
Q

“Life on this planet is mostly made up of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. Therefore, when looking for life on other planets, we should search for these same molecules.” This is an example of

A

a) a hasty generalization
b) an inductively valid argument
c) a conclusion based on biased statistics
* *d) all of the above

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16
Q

“Geneology replaces cosmogeny” is the description of whose contribution to philosophy?

A

b) Hesiod

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17
Q

What is “aer”?

A

a) A mist that changes properties corresponding to density

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18
Q

An artist’s paining of a vase is a poor and imperfect reflection of another poor and imperfect reflection. This is an example of whose philosophy?

A

b) plato

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19
Q

In order to understand the chemicals basis of inheritance, one must understand the molecular structure of DNA. This is an example of the application of ___to the study of biology.

A

d) reductionism

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20
Q

Once labor begins in childbirth, contractions increase in intensity and frequency until delivery. The increasing labor contractions of childbirth are an example of

A

c) positive feedback

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21
Q

Which branch of biology is concerned with the naming and classifying of organisms?

A

e) taxonomy

22
Q

Prokaryotes are classified as belonging to two different domains. What are the domains?

A

c) Bacteria and Aechaea

23
Q

All the organisms on your campus make up a?

A

c) a community

24
Q

Which of the following is an example of qualitative data?

seconds

A

c) The fish swam in a zigzag motion

25
Q

Which of the following statements is false?

A

c) Protons and electrons are electrically charged particles. Protons have one unit of negative charge, and electrons have one unit of positive charge.

26
Q

Each element is unique and different from other elements because of the number of protons in the nuclei of its atoms. Which of the following indicates the number of protons in an atom’s nucleus?

A

b) atomic number

27
Q

The mass number of an element can be easily approximated by adding together the number of ___ in an atom of that element.

A

d) protons and neutrons

28
Q

Which of the following sequences represents the hierarchy of biological organization from the least to the most complex level?

A

d) molecule, cell, organ system, population, ecosystem, biosphere

29
Q

What is the maximum number of electrons in the 1s orbital of an atom?

A

b) 2

30
Q

What results from an unequal sharing of electrons between atoms?

A

a) a polar covalent bond

31
Q

The ionic bond of sodium chloride is formed when

A

a) chlorine gains an electron from sodium

32
Q

Why is the Tennessee Valley known as the “valley of sickness”?

A

d) Biodiversity is so great that the likelihood of an individual being allergic to something local is high

33
Q

Which of the following is an example of an organ system?

A

c) a nervous system

34
Q

Which of the following is an example of a population?

A

d) King snakes in Madison County

35
Q

Which of the following is not an example of an ecosystem?

a) a fruit fly
b) a rotting log
c) planet Earth
d) the Amazon River basin

A

a) a fruit fly

36
Q

A vulture is a

A

b) consumer

37
Q

What does a photosynthetic autotroph convert into food?

A

b) light

38
Q

A catabolic reaction

A

a) decomposes

39
Q

The genetic code

A

c) is universal and well understood

40
Q

A metabolic reaction that digests or decomposes is said to be

A

c) Catabolic

41
Q

Who is generally credited with the first description of scientific method?

A

b) Aristotle

42
Q

“All cats in my neighborhood are white, and all cats in Alabama would be white except that undetectable alien beings have cleverly introduced cats of other colors to fool us into thinking that cats come in many colors. “ Why is this NOT a hypothesis?

A

d) it is not testable

43
Q

What do scientists use in reporting data in order to reduce experimental bias?

A

a) Objective methods

44
Q

Ghostbusting by means of handheld electromagnetic radiation detectors, computer-controlled cameras, sophisticated thermometers and recording of low-frequency sound waves is

A

d) a pseudoscience

45
Q

An atom

A

d) Is the smallest unit to retain the properties of an element

46
Q

95% of the human body is composed of elements found in the following mnemonic:

a) SHNOPS
b) CHOMPS
c) CHNOPS
d) SCHNAPPS

A

c) CHNOPS

47
Q

What type of bond is formed by the sharing of electrons to complete the valence shell?

A

c) Covalent

48
Q

Which of the subatomic particles contributes almost no weight to an atom?

A

d) Electrons at various energy levels

49
Q

Radioactive elements differ in their?

A

c) Number of neutrons

50
Q

An atom that has two electrons in the outer shell, such as calcium, would most likely

A

c) Lose these two electrons and become a positively charged ion

Cambell Bio Ch 1 (6 decks)

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