Exam 2 Form B Answers are bolded 1 Garden beans and many other eudicots have a hypocotyl hook during germination Which of the following is a false statement concerning the hypocotyls and or the hypocotyl hook a It is the first structure to emerge from a eudicot seed b It pulls the cotyledons up through the soil c It straightens when exposed to light d Its emergence through the soil protects the shoot tip e It is the region just below the cotyledons 2 What is typically the result of double fertilization in angiosperms a The endosperm develops into a diploid nutrient tissue b A triploid zygote is formed c Both a diploid embryo and triploid endosperm are formed d Two embryos develop in every seed e The fertilized antipodal cells develop into the seed coat 3 Which of the following is not a derived feature of angiosperms that distinguishes them from gymnosperms a sperm delivery without water b double fertilization c endosperm d sieve tube elements e vessels 4 Which of the following statements about fruits is false a Fruits form from microsporangia and integuments b Most fruits have seeds inside them c Green beans corn tomatoes and wheat are all fruits d Fruits aid in the dispersal of seeds e During fruit development the wall of the ovary becomes the pericarp 5 In some angiosperms other floral parts contribute to what is commonly called the fruit Which of the following fruits is derived mostly from an enlarged receptacle a pea b raspberry c apple d pineapple e peach 6 A flower that has red petals produces copious nectar but lacks scent would most likely be pollinated by a bees 1 b wasps c birds d moths e beetles 7 Which of the following statements regarding flowering plants is false a The sporophyte is the dominant generation b Female gametophytes develop from megaspores within the carpels c Pollination is the placing of pollen on the stigma of a carpel d The food storing endosperm is derived from the cell that contains two polar nuclei and one sperm nucleus e Flowers produce fruits within the ovules 8 All of the following are associated with eudicots except a scattered vascular bundles in stem cross section b netted leaf venation c taproot d flower parts in multiples of 4 or 5 e pollen grain with three openings 9 Which of the following is the correct order of floral organs from the outside to the inside of a complete flower a petals sepals stamens carpels b sepals stamens petals carpels c spores gametes zygote embryo d sepals petals stamens carpels e male gametophyte female gametophyte sepals petals 10 Most of the water and minerals taken up from the soil by a plant are absorbed by a storage roots b tap roots c sections of the root that have secondary xylem d root hairs e the thick parts of the root near the base of the stem 11 Root function includes a selective solute uptake b anchorage c water absorption d gas exchange e all of the above 12 Seed germination in monocots and eudicots always begins with a emergence of the radicle 2 b imbibition of water c emergence of the hypocotyl hook d rupture of the coleoptile e rupture of the coleorhiza 13 A tuber and a rhizome are types of stems even though they are underground structures because they a are typically green and photosynthetic b have nodes from which stems and leaves can emerge c grow in a vertical direction d absorb water nutrients from the soil e store carbohydrate 14 A vessel element would most likely lose its protoplast in which zone of growth in the root a apical meristem b root cap c zone of cell division d zone of elongation e zone of differentiation 15 Lateral or branch roots originate from the a collenchyma b endodermis c epidermis d pericycle e apical meristem 16 Which of the following is not part of the bark of an older tree a cork b lenticels c cork cambium d vascular cambium e secondary phloem 17 Wood consists of a bark b cork c secondary phloem d secondary xylem e periderm 18 Which of the following is a true statement a Flowers may have secondary growth b Secondary growth is a common feature of eudicot leaves 3 c Secondary growth is produced by both the vascular cambium and the cork cambium d Primary growth and secondary growth alternate in the life cycle of a plant e Plants with secondary growth are typically the smallest ones in an ecosystem 19 Heartwood and sapwood consist of a bark b periderm c secondary xylem d secondary phloem e cork 20 The youngest part of a woody plant can be found at a the shoot tips and root tips b the shoot base c the root base d the heartwood e the outermost layer of cork 21 Active transport involves all of the following except the a diffusion of solute through the lipid bilayer of a membrane b pumping of solutes across the membrane c hydrolysis of ATP d transport of solute against a concentration gradient e a specific transport protein in the membrane 22 Which of the following is not a function of the plasma membrane proton H pump a assists in the opening of the stomates b formation of ATP c assists in the uptake of cations such as K d assists in the co transport of anions such as NO3 e acidifies the cell wall 23 Which of the following would be least likely to affect osmosis in plants a proton pumps in the cell membrane b a difference in solute concentrations between the cell environment c receptor proteins in the cell membrane d aquaporins e a difference in water potential between the cell environment 24 Which of the following statements about xylem is incorrect a It conducts sap upward b It conducts sap within dead cells 4 c It transports mainly sugars and amino acids d It has a lower water potential than the soil e No energy input from the plant is required for xylem transport 25 Which of the following statements is false about bulk flow a It is driven primarily by pressure potential b It is more effective than diffusion over distances greater than 100 m c It is dependent on a difference in pressure potential at the source and the sink d It is dependent on the force of gravity on a column of water e It may be the result of either positive or negative pressure potential 26 What is the main cause of guttation in plants a root pressure b transpiration c pressure flow in phloem d plant injury e condensation of atmospheric water 27 Arrange the following five events in an order that explains the mass flow of materials in the phloem 1 Water diffuses into the sieve tubes 2 Leaf cells produce sugar by photosynthesis 3 Solutes are actively transported into sieve tubes 4 Sugar is transported