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20 questions
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- Multiple ChoicePlease save your changes before editing any questions.
What gas can help fruits to ripen faster?
Oxygen
Nitrogen
Ethylene
Sulfur
- Multiple ChoicePlease save your changes before editing any questions.
A plant's stem grows towards the source of light to it's left. This is known as
phototropism
negative phototropism
positive phototropism
neutral phototropism
- Multiple ChoicePlease save your changes before editing any questions.
What is the side to side oscillating movement of a plant called?
Nutation
Nodding
Twining
Contraction
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What is the growth response that results from the stimulus of gravity?
Gravitropism
Gravitrotism
Gravitational Growth
Nutation
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What is it called when a plants leaves and stems fold in on a regular 24 hour cycle?
Circadian Rhythm
Cardiac Rhythm
Sleep Cycle
Melatonic Rhythm
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What is it called when leaves twist on their petioles in response to illumination to become perpendicular to the light source?
Light tracking
Light Resonance
Solar Tracking
Solar Resonance
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Plants curling around a pole or mailbox is an example of:
Phototropism
Germination
Turgor pressure
Thigmotropism
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This plant's response to touch is ???
Phototropism
Germination
Thigmotropism
Gravitropism/geotropism
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A plant responds to it's environmental temperature. What kind of tropism is this?
Thigmotropism
Traumatropism
Thermotropism
Aerotropism
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What is the term for when day length is directly related to the onset of flowering in plants?
Phototaxic
Photoperiodism
Lightoperiodism
Lightotaxic
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What is dormancy?
A period of growth inactivity
A period of extremely fast growth
When a plant dies
When a plant blooms every year
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Which of these is not one of the six major regions in plant cultivation?
Chinese Region
Baltic Region
North American Region
African Continent
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Which of the following is not native to the African Continent?
Okra
Sorghum
Yam
Walnut
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Which of the following is native to the North American Region?
Sugar Cane
Corn
Vanilla
Sunflower
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In what species are nearly all 1,500 of the members slightly poisonous?
Lauraceae
Papaveraceae
Ranunculaceae
Brassicaceae
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What is the third largest flowering plant family?
Legume
Rose
Buttercup
Spurge
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From what plant family are Scopolamine patches derived from?
Legume
Rose
Nightshade
Carrot
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What plant family is almost completely unknown in their wild state?
Rose
Carrot
Sunflower
Pumpkin
- Multiple ChoicePlease save your changes before editing any questions.
What plant family is vanilla derived from?
Orchid
Legume
Carrot
Rose
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What plant family has been used to derive antiseptics around the work for decades?
Turnip
Rose
Ivy
Mint