Transcript In Class Questions

Clicker Questions
What Year in School are you?
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A. Freshman
B. Sophomore
C. Junior
D. Senior
E. Something else
Where Do You Live?
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A. On campus
B. in the DeKalb-Sycamore area
C. in Chicago or the suburbs
D. Elsewhere
What Grade Do You Expect in this
class?
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A. A
B. B
C. C
D. D
E. F
Which of these is a plant?
• A. It has 4 legs, has fur, and eats dog food
• B. It is green, rooted in the ground, and has
leaves.
1. When did domesticated plants
and agriculture first appear?
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A.
B.
C.
D.
E.
4.6 billion years ago
65 million years ago
100,000 years ago
10,000 years ago
500 years ago
2. Which of these structures is
found in plant cells but not animal
cells?
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A. Nucleus
B. cell membrane
C. cell wall
D. Cytoplasm
3. Which of these got its start by
the process of endosymbiosis?
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A.
B.
C.
D.
E.
Life
The nucleus
Cell walls
Chloroplast
Fungi
4. Which of these plants does NOT
have a vascular system?
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A. angiosperms
B. bryophytes
C. gymnosperms
D. ferns
5. What is the function of phloem?
• A. To conduct water and minerals up from the
roots
• B. to allow gas exchange in the leaves
• C. to produce pollen
• D. to conduct sugars from the leaves to other
parts of the plant
• E. to nurture the seed as it develops
6. What does “diploid” mean?
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A. Flowering plant
B. mosses, liverworts, and hornworts
C. two copies of every gene
D. domesticated plant
E. the geological age before the dinosaurs
7. What is an imperfect flower?
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A. a flower that has 4 petals instead of 5
B. a flower that is not useful for reproduction
C. a flower that can’t develop into a fruit
D. a flower that is the wrong color
E. a flower that has either male or female
reproductive structures but not both
8. What is endosperm?
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A. male reproductive cells
B. female reproductive cells
C. reproductive organs in ferns and horsetails
D. nutritive tissue for seeds
E. tubes for conducting fluids in plants
9. What kind of flowers does maize
have?
• A. perfect
• B. imperfect, on the same plant
• C. Imperfect, with the different sexes on
different plants
• D. maize doesn’t have flowers
10. Which cereal grain contains
gluten?
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A. wheat
B. maize
C. rice
D. oats
E. barley
11. Leavened bread contains:
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A. yeast
B. milk
C. sesame seeds
D. rye flour
E. eggs
12. Where was rice domesticated?
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A. North America
B. South America
C. near the Mediterranean Sea
D. India
E. China
13. Why is Malt used in brewing
beer?
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A. It adds a bitter taste that people like
B. It converts sugar into ethanol
C. It prevents spoilage by killing bacteria
D. It converts starch into sugar
E. It improves the color of the beer
14. Where were soybeans
domesticated?
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A. USA
B. South America
C. Europe
D. China
E. Africa
15. Legume fruits contain large
amounts of protein because:
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A. they carry out photosynthesis
B. they eat insects
C. they only grow for one season
D. they contain root nodules with nitrogenfixing bacteria
• E. they are parasitic
16. Peanut fruits:
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A. are produced only every other year
B. contain no seeds
C. contain no embryo
D. develop underground
E. peanuts don't make fruits
17. The Old World consists of these
continents:
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A. Europe, Asia, and Africa
B. North and South America
C. Europe and North America
D. Africa only
E. Europe and Asia
18. The storage organ of the potato is a
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A. stolon
B. bulb
C. corm
D. tuber
E. taproot
19. Yams contain:
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A. poisonous cyanogenic glucosides
B. fungal pathogens
C. large amounts of protein
D. hallucinogenic drugs
E. steroid hormones
20. Before Columbus, sweet potatoes
were found in:
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A. Africa
B. Asia
C. South America and Polynesia
D. North America
E. throughout the Old World
21. Which of these is NOT a method of
vegetative propagation?
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A. grafting
B. tissue culture
C. stem cuttings
D. seeds
E. stolons
22. Getting from diploid to haploid
involves:
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A. meiosis
B. fertilization
C. tissue culture
D. grafting
E. pollination
23. In genetics, both copies of a
gene are identical in a:
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A. heterozygote
B. homozygote
C. hemizygote
D. diploid
E. haploid
24. The phenotype of an organism
is:
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A. its genetic constitution
B. how many sets of chromosomes it has
C. whether it has undergone meiosis
D. its physical appearance
E. the type of cell it has
25. A plant species name with an
‘x’ in it, like Citrus x paradisi, is a:
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A. polyploid
B. cereal grain
C. hybrid between two species
D. domesticated species
E. genetically modified organism
26. DNA ligase is an enzyme that:
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A. cuts DNA at specific sites
B. attaches two pieces of DNA together
C. digests DNA into its components
D. synthesizes new DNA molecules
E. helps DNA get inside the cell during the
process of transformation
27. The macromolecule that
requires large amounts of nitrogen
is:
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A. carbohydrates
B. lipids
C. proteins
D. nucleic acids
E. secondary metabolites
28. Polar compounds:
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A. are hydrophilic and dissolve in water
B. are hydrophobic and dissolve in water
C. are hydrophilic and don't dissolve in water
D. are hydrophobic and don't dissolve in water
E. none of the above
29. Cell membranes are primarily
composed of:
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A. carbohydrates
B. lipids
C. proteins
D. nucleic acids
E. secondary metabolites
30. Sugar cane is native to:
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A. China
B. India
C. the Caribbean region
D. New Guinea
E. Africa
31. In 1763, the French considered the sugargrowing Caribbean islands of Guadeloupe and
Martinique more valuable than:
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A. Louisiana
B. North Africa
C. Canada
D. Paris
E. France
32. The main method involved in
purifying sugar is
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A. winnowing
B. crystallization
C. extraction with solvents
D. fermentation
E. distillation
33. Coffee is native to:
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A. Europe
B. Asia
C. Africa
D. North America
E. South America
34. The beverage known as coffee is made
from what part of the coffee plant?
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A. seeds
B. whole fruit
C. leaves
D. stems
E. roots
35. The reason why tea replaced coffee as
a major crop in Sri Lanka (Ceylon) is:
• A. tea was more profitable
• B. people stopped drinking coffee
• C. climate change made it harder to grow
coffee
• D. the coffee crop was wiped out by a fungal
pathogen
• E. politicians forbade the growing of coffee
36. Tea is made from which part of
the tea plant:
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A. leaves
B. roots
C. seeds
D. whole fruits
E. stems
37. Cocoa butter is extracted form
the raw chocolate liquor by:
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A. chemical solvents
B. roasting it
C. allowing it to ferment
D. pressing it
E. boiling it in water
38. The purpose of fermenting
freshly picked cacao beans is to:
• A. remove poisons
• B. remove bacteria, dirt, and other
contaminants
• C. convert sugars into alcohol
• D. enhance the chocolate flavor
• E. increase the caffeine content
39. Where do bast fibers come
from?
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A. seed coverings
B. xylem
C. phloem
D. roots
E. leaves
40. What process does the cotton
gin perform?
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A. planting cotton seeds
B. harvesting cotton bolls
C. separating seeds from the fibers
D. spinning fiber into yarn
E. weaving cotton cloth
41. What plant does linen come
from?
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A. wheat
B. cotton
C. flax
D. sugar cane
E. rose
42. Vulcanizing rubber turns it into a stable
and useful product. Vulcanizing involves
heating raw rubber with:
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A. nitrogen
B. hydrogen
C. organic compounds
D. sulfur
E. water
43. Wood is composed of which
type of plant cell:
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A. xylem
B. phloem
C. meristems
D. carpels
E. stamens
44. Paper is sized to make it:
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A. less absorbent
B. more absorbent
C. whiter
D. flatter
E. properly shaped
45. Knots in wood are caused by:
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A. insect damage
B. a fungal disease
C. branches growing out of the main trunk
D. grafting
E. variations in growth rate during each year
46. Lignin in wood provides:
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A. compressive strength
B. tensile strength
C. growth rings
D. fibers used to make paper
E. knots
47. The advantage of a charcoal
fire over a wood fire is that:
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A. charcoal is cheaper
B. charcoal uses less oxygen to burn
C. charcoal burns hotter than wood
D. charcoal produces better tasting food
E. charcoal is stronger than wood
48. Determinate plants (as
opposed to indeterminate):
• A. develop all their fruits at the same time
• B. germinate their seeds at a specific
temperature
• C. germinate at a specific day length
• D. ripen their fruits only when treated with
plant hormones
• E. grow in much drier climates than
indeterminate
49. How does ethylene gas affect
tomatoes?
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A. prevents them from rotting
B. prevents flowering
C. encourages flowering
D. prevents ripening
E. encourages ripening
50. Most apple trees are grafted.
Why?
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A. to create genetic diversity
B. to maintain genetic uniformity
C. to find new varieties
D. to maintain the health of the tree
E. to make harvesting the apples easier
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51. Broccoli, cauliflower, turnips, and
kale are all members of which plant
family:
A. rose
B. mustard
C. carrot
D. citrus
E. nightshade
52. Parthenocarpy is a useful
phenomenon in some crop plants that:
• A. causes fruit to develop without fertilization
• B. causes all fruit to be set at the same time
• C. causes fruit to ripen after they have been
picked
• D. prevents flowers from wilting
• E. causes seeds to germinate
53. In traditional farming in the American
Southwest, corn and beans are grown alongside:
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A. melons
B. squash
C. bananas
D. guayule
E. tomatoes
54. Anecdotal evidence is:
• A. evidence based on controlled experiments
• B. evidence based on controlled, double-blind
experiments
• C. evidence based on ancient wisdom
• D. evidence based on a small number of
direct observations
55. The placebo effect is:
• A. the patient improves when given an effective drug
• B. the patient does NOT improve when given an
effective drug
• C. the patient improves when given a ineffective
treatment that mimics the real treatment
• D. The patient fails to improve when given an
ineffective treatment
• E. the patient dies
56. The Doctrine of Signatures says
that:
• A. Medical doctors must sign the prescriptions they
write
• B. Medicinal plants resemble the organ they heal
• C. Useful medical knowledge is preserved in books
written by doctors from ancient times
• D. Organic chemistry produces more effective drugs
than plants do
• E. Movements of the plants and stars influence our
health
57. The active principles in
medicinal plants are usually:
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A. proteins
B. carbohydrates
C. nucleic acids
D. lipids
E. secondary metabolites
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58. The painkilling compound aspirin
was derived from which of these
plants:
A. vanilla
B. wormwood
C.foxglove
D. willow
E cinchona tree
59. Malaria is caused by:
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A. polluted air
B. a fungal pathogen
C. bacteria
D. mosquitos
E. Plasmodium parasite
60. Digoxin, the active principle in
foxglove, cures dropsy by:
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A. causing the heart to pump harder
B. increasing the blood pressure
C. decreasing blood pressure
D. stimulating the nervous system
E. inducing vomiting
61. The rat poison warfarin works
by:
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A. inhibiting the central nervous system
B. inducing uncontrolled diarrhea
C. preventing the cells from making ATP
D. disabling the kidneys
E. preventing blood clotting
62. Ephedra, the source of
ephedrine, is what kind of plant:
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A. moss
B. mustard family
C. nightshade family
D. gymnosperm
E. deciduous tree
63. A synapse is:
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A. a nerve cell
B. a chemical that transmits nerve impulses
C. the connection between two nerve cells
D. a chemical compound that produces
euphoria
• E. a plant native to China
64. Tobacco is native to:
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A. The Americas
B. China
C. the Mediterranean region
D. Africa
E. India
65. Nicotine is produced in which
part of the plant:
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A. flowers
B. leaves
C. fruits
D. stems
E. roots
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66. Endorphins are compounds produced
in the human body that mimic the action
of:
A. tobacco
B. marijuana
C. mescaline
D. opium
E. cocaine
67. Marijuana is native to:
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A. Africa
B. the Mediterranean region
C. central Asia and China
D. North America
E. Australia
68. What Kind of Plant Produces
Mescaline?
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A.
B.
C.
D.
E.
conifer
Member of the nightshade family
monocot
cactus
moss
69. Khat is native to:
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A. Africa
B. China
C. South America
D. Europe
E. New Guinea
70. What is a labrusca grape?
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A. grapes used for eating, not wine making
B. grapes used to make red wine
C. grapes used to make white wine
D. grapes native to North America
E. grapes native to Europe and Asia
71. White wine is made by
• A. removing the grape skins before
fermentation
• B. using green grapes
• C. bleaching the wine after fermentation
• D. using labrusca grapes
• E. filtering the grape juice before fermentation
72. The highest possible alcohol
concentration is:
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A. 10 proof
B. 86 proof
C. 100 proof
D. 200 proof
E. 1000 proof
73. Bourbon whiskey is made from:
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A. corn
B. wheat
C. rice
D. molasses
E. potatoes
74. Our sense of smell recognizes which
aspect of odorant molecules:
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A. their size
B. their overall shape
C. the shape of specific parts of the molecule
D. their vibrational frequency
E. it’s unknown
75. Enfleurage is a way of extracting
essential oils from flowers that involves:
• A. soaking the flower petals in chemical
solvents
• B. distilling the oils
• C. squeezing the flowers to express the oils
• D. covering the flowers in cold fat
• E. boiling the flowers in water
76. Frankincense is native to:
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A. South America
B. Europe
C. Arabia
D. Southeast Asia
E. China
77. Which plant family do basil,
sage, and rosemary belong to?
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A. carrot
B. nightshade
C. rose
D. mustard
E. mint
78. What is the current name for
the “Erythraean Sea”?
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A. Mediterranean Sea
B. Black Sea
C. Atlantic Ocean
D. Indian Ocean
E. Baltic Sea
79. Cassia is most closely related
to:
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A. cinnamon
B. carrot
C. pepper
D. nutmeg
E. apple
80. Which two spices come from
the same plant?
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A. pepper and ginger
B. pepper and nutmeg
C. nutmeg and cloves
D. nutmeg and mace
E. cloves and ginger
81. Saffron is a very expensive
spice because:
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A. it comes from an exotic location
B. it is hard to propagate
C. it is a sterile triploid
D. it is also used as a dye
E. it must be harvested by hand
82. The French gardening style
could be described as:
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A. Apollonian: everything ordered and neat
B. Apollonian: displaying disorder and chaos
C. Dionysian: everything ordered and neat
D. Dionysian: displaying disorder and chaos
83. Roses have many petals
because:
• A. they have been treated with plant
hormones
• B. they are hybrids between different species
• C. they are triploid
• D. they are tetraploid
• E. stamens have been converted into petals
84. The “broken” color pattern in tulips
that was so valuable during the Dutch
tulipomania episode was caused by:
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A. genetic mutation
B. hybridization between two species
C. genetic engineering
D. a virus
E. unusual soil conditions
85. An epiphyte is:
• A. the male reproductive organs of
angiosperms
• B. the male reproductive organs of
gymnosperms
• C. a plant that grows off the ground and not in
soil
• D. a plant that lives in water
• E. a plant that reproduces asexually