Chapter Questions
___________ is the arrival of pollen on a receptive stigma.
An animal pollinator may receive _________ when it visits a flower of a coevolved plant (choose all that apply).a. pollenb. nectarc. pesticidesd. fruit
In flowers, a __________ contains one or more ovaries.a. pollen sacb. carpelc. receptacled. sepal
In flowers, the structures that produce male and female gametophytes are called ___________ and ____________.a. pollen grains; flowersb. stamens; carpelsc. anthers; stigmad. megaspores; microspores
Meiosis of cells in pollen sacs forms haploid _________.a. megasporesb. microsporesc. stamensd. sporophytes
True or false? All flowers are pollinated by bees.
The three main parts of a mature seed are ______________.a. pollen grain, egg, and seed coatb. embryo, endosperm, and seed coatc. megaspores, microspores, and ovule
The seed coat forms from the ____________.a. integumentsb. coleoptilec. endospermd. sepals
Seeds are mature ________ ; fruits are mature ________.a. ovaries; ovulesb. ovules; stamensc. ovules; ovariesd. stamens; ovaries
Dixie Bee prepares a plate of fruits for a party and cuts open a cantaloupe (Cucumis melo). A tough outer rind and soft fleshy tissue enclose many seeds (left) Knowing her friends will ask her what kind of fleshy fruit this is, she panics, runs to her biology book, and opens it to Table 29.2 in Section 29.7. What does she find out?
Cotyledons develop as part of ______________.a. carpelsb. accessory fruitsc. embryo sporophytesd. flowers
Exposure to _________ can trigger seed germination.a. lightb. coldc. smoked. all can be triggers
A new plant forms from a stem that broke off of the parent plant. This is an example of ______________.a. nodal cloningb. exocytosisc. asexual reproductiond. tissue culture propagation
Banana plants produce seedless fruit because they are ___________.a. triploidb. monocotsc. propagated by graftingd. treated with colchicine
Match the terms with the most suitable description._____ovule_____receptacle _____double fertilization_____anther _____plumule _____mature femalegametophyte _____mature malegametophytea. pollen tube together with its contentsb. consists of seven cells, one with two nucleic. after fertilization, develops into a seedd. embryonic shoote. pollen sacs insidef. swollen stem; base of flowerg. formation of zygote and first cell of endosperm