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28 Cards in this Set
- Front
- Back
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abscisic acid
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a hormone that inibits plant growth, it causes the guard cells to close the stomata.
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characteristic of xerophyte
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leaves with very small surface area
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Angiosperms: what helps SEED dispersal?
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Mammals
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Transpiration
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loss of water vapour from leaves and stems
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what causes MOVEMENT OF WATER thru the xylem?
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Evaporation of water from leaves
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water in xylem flows up or down?
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UP!
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sugars and amino acids flow up or down in phloem?
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BOTH WAYS!
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treatment most likely lead to germination?
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soaking seeds in a solution of gibberellins
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Order of flowering reproduction?
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pollination, fertilization, seed dispersal
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Transport in XYLEM supported by...
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TRANSPIRATION PULL
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Transport in PHLOEM supported by...
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ACTIVE TRANSLOCATION
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What 2 structures support terrestrial woody plant?
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XYLEM tissue & TURGOR pressure
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What process starts seed germination?
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Absorption of water
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Adhesion
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Binding of different molecules
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Cohesion
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Binding of LIKE molecules
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Monocot- 3 characteristics
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1. vascular bundle spread out
2. flowering parts in 3s 3. parallel leaf veins |
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Dicot- 3 characteristics
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1. vascular bundle RINGED
2. flowering parts in 5s 3. net-like leaf veins |
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Terrestial plants support by...(3)
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1. Thickened cellulose
2. Cell turgor 3. Lignified xylem |
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phytochrome absorbed during 1. daytime and 2. nighttime
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1. Pr
2. Pfr |
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Explain "manipulation of length of darkness"
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Manipulating type of light phytochrome can absorb
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Phototropism
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directional growth in response to the source of light
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Auxin is?
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hormone; growth promoter
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Photosynthesis converts CO2 into...
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Organic compounds for plants
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Cellular respiration converts organic compounds into..
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CO2
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3 factors needed for seed germination
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1. WATER
2. OXYGEN 3. suitable TEMPERATURE |
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Where are male flower gametes?
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POLLEN produced by anthers
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Fertilization is when a ____ is formed by the fusion of a male and female gamete inside the _____.
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ZYGOTE; OVULE
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Pollination is the transfer of _____ from an anther to a _____.
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Pollen; stigma
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