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38 Cards in this Set
- Front
- Back
why do aspens quake |
form and function |
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sugar maple |
sap used to make maple syrup. |
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aloe vera |
aloe vera sap is used in products used for soothing, moisturizing and healing. aloe vera gel (not from vascular aloe tissue) is also used in yogurts, beverages and desserts. |
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where are chlorophyll like pigments located? |
inflonded regions of plasma membrane |
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Ifphotosynthesizing green algae are provided with CO2 containing heavy oxygen(18O), subsequent analysis will show that 18O is absent from which of thefollowing molecules produced by the algae? |
o2 |
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Whichof the following are products of the light reactions of photosynthesis that areutilized in the Calvin cycle? |
ATP and NADPH |
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where does calvin cycle take place |
stroma of chloroplast |
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a plant has a unique photosynthetic pigment. the leaves of this plant appear to be reddish yellow. what wavelengths of visible light are being absorbed by this pigment? |
blue and violet |
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Inthe thylakoidmembranes, what is the main role of the pigment molecules in a light-harvestingcomplex? |
transfer light energy to the reaction enter chlorophyll |
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when oxygen is released as a result of photosynthesis, it is a direct by-product of |
splitting water molecules |
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what is primary function of cyclic electron flow? |
to produce additional ATP |
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what does chemiosmotic process in chloroplasts involve |
establishment of a proton gradient across thylaoid membrane |
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cellular respiration is ____ and photosynthesis is ______ . |
catabolic. anabolic |
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where are molecules of electron transport chain associated with photophosphorylation located in plant cells? |
thylakoid membranes of chloroplasts |
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reduction of oxygen to form water occurs during |
cellular respiration only |
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what is relationship between wavelength of light and quantity of energy per photon |
they are inversely related |
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primary function of calvin cycle |
produce simple sugars from carbon dioxide |
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where do enxymatic reactions of calvin cycle take place |
stroma of chloroplast |
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reactions that consume co2 take place in |
calvin cycle only |
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what colors of light are least effective in driving photoynthesis |
green and yellow |
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flow of electrons during photosynthesis |
h2o -> NADPH -> calvin cycle |
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distinction btwn autotophs and heterotrophs |
autotrophs, but not hetertrophs can nourish themselves beginning with co2 and other nutrients that are inorganic |
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what doesnt occur during calvin cycle |
release of oxygen |
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photophosphorylation is most similar to |
oxidatative phosphorylatino in cellular respiration |
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what is driven by light energy |
removal of electrons from chlorophyll molecules |
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shoots and roots |
shoots take in: co2, sunlight. out: o2, h2o --- Roots take in h2o, nutrients, o2. out: co2 |
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phylotaxy |
arrangement of leaves on stem |
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____ intake and restriction of _____ ____ are vital to phyllotaxy. |
co2 - water loss. |
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what is a vascular plant? |
Vascularplantshavevascular tissues which distribute resources through the plant. Vascular transport allows for larger plants. Vascular plants include trees, flowers,grasses and vines. Vascular plants have a root system, ashoot system and a vascular system. Roots are simple tissues that are derivedfrom the stem of the plant. Roots anchor the plant in the ground and transportminerals and water into the plant. |
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what are xylem and phloem |
vascular tissue that transport fluid and nutrients internally. The xylem isrigid tissue that transports water throughout the plant. Xylem tissuecan be found throughout the plant, in the roots, stem and leaves. The phloemtransports photosynthetic products from where they are made to where they arestored. Phloem bring minerals upthrough the roots and the byproducts of photosynthesis down tomove them throughout the plant. |
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what is turgor pressure |
maintains stiffness of plant tissue |
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osmosis |
Water moves from regions of higherconcentration to regions of lower concentrations.MPa is a unit of pressure with which wemeasure water potential. Mpa ofpure water in an open container at sea level and room temp is0. |
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water potential |
Water potential is the measure of potential energy in water and drives the movement of water throughplants. solutes and pressure affect water ptential |
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water potential equation |
water potential = solute potential + pressure potential |
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aquaporins |
transport proteins that facilitate the movement of water molecules across plant plasma membranes |
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bulk flow |
movement of liquid in response to pressure gradients, is independent of solute concentrations |
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______ drives the transport of water and minerals from roots to shoots via the ____. |
transpiration - xylem |
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x |
x |