biology pgs. 36-39 (3.2)

study this for the reading quiz tmr

fruit

ripened ovary of a flower

flowering

**fill in the blank**

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fruits function as the seed-bearing structures of __________ plants

fruit

refers only to sweet, matured ovaries, such as peaches, apples, and orange

vegetable

applied to those fruits that are not necessarily sweet, such as peas, beans, and tomatoes

fruit

**fill in the blank**

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any ripened ovary is called a ______ whether it is sweet or not and whether it is edible by humans or not

pollination

transfer of pollen from an anther to the stigma of a pistil

fertilization

occurs when pollen fuses with the ovules

self-pollination

when pollination occurs within the same flower

cross-pollination

occurs when the pollen from an anther of one plant is transferred to a stigma of a flower on another plant

Creator

**fill in the blank**

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the wide variety of ways in which pollination is ensured in flowering plants shows the ingenuity and provident care of the _________

nectar

a sweet-tasting, watery liquid produced by plants

carrion flowers

have a red-and-white mottled coloring that gives them the appearance of raw meat

yucca flowers

pollinated only by yucca moths and fig flowers by fig wasps

orchids

pollinated only by a certain type of moth

morgan’s sphinx moth

has a proboscis (sucking mouthpart) as long as the nectar tube

hay fever

an allergic reaction that happens when pollen is inhaled; also called allergic rhinitis

hay fever

symptoms of this allergic reaction include runny nose; itchy, watery eyes; and sneezing

histamine

**fill in the blank**

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the symptoms of hay fever are triggered when pollen within the respiratory system causes the release of a *chemical messenger* called _________

antihistamines

drugs taken to reduce the level of histamine

ragweed

a common member of the composite family that triggers hay fever

fertilization

process in which a sperm cell fuses with an egg cell to form a new organism

blueprint

**fill in the blank**

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the new plant receives a “________” for growth from the sperm cell and egg cell that unite to form it

gametes

the sperm cell and egg cell; reproductive cells

sexual reproduction

reproduction in which sperm and egg unite

pollination and fertilization

**fill in the blank**

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the formation of fruits is usually triggered by _________ and __________

hormones

chemicals produced in plants or animals to control or stimulate specific processes

ripening

growing larger and developing into a fruit

abscission layer

forms in the stalk of the fruit and begins to cut the fruit from the stem