AP Plant Study Guide-8b - BIOLOGY JUNCTION

Unit 8B – Plants

Know the following:

water potential of a turgid plant cell in pure water
adaptations of hydrophytes
what occurs if guard & surrounding epidermal cells are K+ deficient
how stomata are opened & closed
what must the plant expend for bulk flow of water in the root apoplast
which part of an oat seedling detects the direction of light
effect of gibberellins on the aleurone layer of seeds
how plant hormones determine the bending of plants toward light
what hormone might produce normal growth in a mutant dwarf plant
what can function as a sink in plants
why does photosynthesis decrease in wilting leaves
what are epiphytes
what is chlorosis
what soil characteristics would be the least productive to plant growth
what happens to most water taken up by a plant
how solutes move in plants according to the pressure-flow hypothesis of phloem transport
what causes guttation to occur
why does most of the water in xylem move upward in a tree
what property of water causes cohesion of its molecules
function of companion cells
what 2 elements make up most of the dry weight of plants
what could be the harmful effect of spraying a fungicide on a woodlot
what do carnivorous plants supplement by eating insects
why is nitrogen fixation so important
what would be characteristics of soil well suited for plant growth
what is the function of micronutrients in plants
what elements are micronutrients needed by plants
what elements are macronutrients needed by plants
what is meant by double fertilization
what are some “vegetables” that technically are fruits
why is sexual reproduction an advantage to plants
what is the megaspore mother cell & what does it do
what do male gametophytes produce in plants
name 4 flower parts that are modified leaves
what is the function of a seed’s radicle
what forms pollen on a plant
what do the 2 sperm nuclei fertilize in plants
what causes seed germination
what floral parts are involved in pollination & fertilization
what things can function in signal transduction in plants
what is needed by a short-day plant for it to flower
what type of tropism do vines use to grow toward tropical trees
why do plants use changes in photoperiods instead of air temperature changes to trigger dormancy
what is needed to get poinsettias to bloom early in December
do plant hormones act the same on all root & stem tissues
what hormone is involved in the rapid opening & closing of stomata
what effect do auxins have on stem cuttings that are to be rooted