PLant Processes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Stomata | openings in leaf through which gases like CO2 and O2 pass
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| Guard Cells | surround the stomata and control their opening and closing based on water level, light conditions, and glucose levels
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| Palisade | upper layer of cells in a leaf, responsible for most of the photosynthesis in the leaf
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| Chloroplasts | organelles in plant cells responsible for photosynthesis
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| Chlorophyll | green pigment in plants and some protists and bacteria responsible for absorbing light energy
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| Photosynthesis | the conversion of light energy into chemical energy (glucose) through the use of carbon dioxide and water
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| Light-dependent Reactions | take place in the presence of light; primarily the splitting of water into hydrogen, which is saved by the plant cell, and oxygen, which is released as oxygen gas
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| Light-independent Reactions | take place with or without light energy; carbon dioxide is converted into glucose with the help of enzymes and addition of hydrogen from light-dependent phase
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| Cellular Respiration | series of chemical reactions that convert chemical energy (stored in glucose) into energy form useful to cells.
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| Internal Stimulus | a factor from the inside which causes some change in the life processes of a creature
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| External Stimulus | a factor from the outside which causes some change in the life processes of a creature
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| Tropism | growth in response to a stimulus
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| Photo | refers to light
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| Thigmo | refers to touch
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| Baro | refers to pressure
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| Gravi | refers to gravity
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| Chemi | refers to chemicals
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| Hormone | a chemical released by a creature which controls a life process
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| Ethylene | * ripens fruit
* slows growth of terminal buds
* controls dropping of leaves and fruit
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| Abscisic Acid | * slows life processes of plant
* prevents bud growth during winter months
* closes stomata on hot summer days
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| Gibberellins | * promotes seed germination
* promotes flowering
* speed up life processes
* promotes elongation of plant cells
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| Ctyokinins | * promote cell division
* promote lateral growth (new branches)
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| Auxin | * causes cell elongation selectively (phototropism)
* collects in the shaded and/or bottom parts of stems/roots
* suppresses lateral growth (branches)
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| Photoperiodism | a plant's response to the amount of daylight it receives
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| Long Day Plants | produce blossoms when there is less than 12 hours of darkness (during the summer months) {Iris, cabbage, lettuce, carrots}
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| Short Day Plants | produce blossoms when there is more than 12 hours of darkness (during spring or autumn months) {sunflowers, cucumbers, sweet potato, tulips}
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| Day Neutral Plants | produce blossoms independent of how many hours of daylight they receive {dandelion, rhubarb, strawberry, kale}
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Created by:
MrGross
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