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Plant Structure and Function Quiz

front 1 Plant cells with thick walls that provide support to stems and leaves are: schlerenchyma cells parenchyma cells collenchyma cells xylem cells	back 1 collenchyma cells
front 2 Aerial roots are the precursor to prop roots. True False	back 2 True
front 3 A modified stem that has nodes and internodes and grows horizontally underground is called a: rhizome stolon corm tuber	back 3 rhizome
front 4 Leaves found on plants in deserts typically: are large to maximize sun exposure for photosynthesis have a thin cuticle layer as the waxy coating can hold in absorbed heat have a smaller surface area almost always have their stomata open to allow for rapid gas exchange	back 4 have a smaller surface area

front 5 Which of the following is correct? root hairs are extensions of root epidermal cells root hairs increase the surface area of the root root hairs help absorption of water and minerals all of the above are correct	back 5 all of the above are correct
front 6 If you keep fruit in a bag, it may ripen quicker - this is due to abscisic acid formation ethylene gas cytokinins gibberellins	back 6 ethylene gas
front 7 Thorns are modified stems leaves roots branches	back 7 branches
front 8 These structures contain meristematic tissue that contribute to primary growth. apical meristems dermal tissues lateral meristems intercalary meristems	back 8 apical meristems

front 9 A carrot would be an example of a root cap tap root modified stem fibrous root	back 9 tap root
front 10 Plants sense gravity with cytokinins statoliths phytochromes auxins	back 10 statoliths
front 11 A waxy region on the walls of endodermal cells is known as the stele pericycle cuticle Casparian strip	back 11 Casparian strip
front 12 Which of the following is true? Many vegetables we eat are modified epiphytic roots Roots are only found below the soil surface Aerial roots develop from the main trunk of the tree Prop roots develop from branches	back 12 Prop roots develop from branches

front 13 Sunshine mimosa leaves wilt when touched this is due to thigmonastic response thigmomorphogenesis thigmotropism	back 13 thigmonastic response
front 14 Which of the following is false? Negative water potential draws water into the root hairs Cohesion and adhesion draw water up the phloem Transpiration draws water from the leave Water enters the plant through roots hairs	back 14 Cohesion and adhesion draw water up the phloem
front 15 Which of the following describes how plants can tell time? phototropism photosynthesis photoperiodism photojournalism	back 15 photoperiodism
front 16 Carnivorous plants have to supplement their diet by eating insects as the soil they typically grow in lacks phosphorus sulfur carbon nitrogen	back 16 nitrogen

front 17 In a monocot can be identified as the stems will have vascular bundles scattered throughout, and the roots will have a distinct "X" or "Y" shape of arranged vascular bundles True False	back 17 False
front 18 Small hairs on a leaf surface are known as thorns trichomes spikes stipules	back 18 trichomes
front 19 Most photosynthesis occurs in the palisade parenchyma spongy parenchyma upper epidermis cuticle	back 19 palisade parenchyma
front 20 Which two layers in the plant stem are made of parenchyma cells? cortex and pith xylem and phloem schlereid and fibers both vascular bundles	back 20 cortex and pith