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Plant Reproduction and Development

Across
A plant _____________ is an extracellular signaling molecule that exerts its effects at very low concentrations
Fruits that develop as a unit from several individually pollinated flowers (pineapple)
Means of inducing a cutting to fuse with and become supported by another plant, often, the stem of a desired plant is grafted onto the roots of another
A plant hormone that promotes growth, involved in polarity and tissue patterning in the embryo
Nutritive tissue in the seeds of flowering plants
Part of the stamen that produces pollen grains
Apical __________ is an effect in which a lengthening shoot time inhibits the growth of lateral buds
Is an agricultural application in which some plants can form from cuttings, may be as simple as jamming a broken stem into the soil, harnessing the root - and shoot- forming ability of nodes on a stem
Type of flower that has sepals, petals, stamens, and carpels
Term used to describe many flowers
A pollination _________ transfers anther to sigma, can be an animal or environmental agent such as wind
Immature male gemetophyte of a seed plant is called a pollen _____
A plant hormone that promotes growth in all flowering plants. Causes stem to lengthen between the nodes by inducing cell division and elongation
Mode of fertilization in flowering plants in which one sperm cell fuses with the egg, and a second sperm cell fuses with the endosperm mother cell
Process by which a plant sheds leaves or other parts
Promotes growth in all flowering plants, causes stem to lengthen between the nodes by inducing cell division and elongation, induces hydrolysis of starch in seeds
Upper part of a carpel; adapted to receive pollen
Specialized reproductive structure of a flowering plant
Type of flower that lacks one or more structures
Fruits derived from one ovary or a few fused ovaries (cherries)
Fruits in which fleshy tissue derived from th receptacle enclosed a core derived from the ovary wall (apples and pears)
Period of temporary suspended metabolism
Unit of a flower's corolla; often showy and conspicuous
Fruits derived from separate ovaries of one flower that mature as a cluster (blackberries)
Type of flowers that are radially symmetric
Most flowering plants can reproduce _________, as when new roots and shoots grow from extensions or pieces of a parent plant
Down
Regulates germination, growth, seasonal abscission, ripening, and stress responses
Of a seed-bearing plant, a structure in which a female gametophyte forms
Acorns, pea ponds, grains, sunflowers, maples and strawberries are _____ fruits
Organisms such as birds or insects disperse seeds by being _________
To resume metabolic activity after dormancy
Fruits have only the ovary wall and its contents (orange)
Dispersal by ________ occurs in seeds that are light weight, with breeze-catching specializations
Type of flowers that are not radially symmetric
The embryonic shoot and root are separated by a tiny section of embryonic stem called
A plant hormone that affects meristem cell division and differentiation. stimulates development of lateral buds
Arrival of pollen on a receptive stigma, is essential to sexual reproduction in flowering plants
Cherries, almonds, olives, and blackberries are _______ fruits
A sweet fluid exuded by some flowers that attracts animal pollinator
Fruits that have tissues derived form other floral parts: petals, sepals, stamens, or receptacle that expanded along with the developing ovary (apple)
Floral reproductive organ that consists of an anther and, in most species, a filament
Floral reproductive organ that produces the female gametophyte; consists of an ovary, stigma, and often a style
The enlarged base of a carpel, inside which one or more ovules form
Fleshy fruit produced form one ovary (grapes, tomatoes, citrus fruits, pumkins, watermellons, and cucumbers)