Biology Final (Plant Reproduction Section)
Extreme environmental conditions such as heat and cold may affect the timing of _____, ending seed dormancy
Germination
The early growth stage of a plant embryo is called A. Fertilization B. Dormancy C. Germination D. Pollination
Germination
The megaspore divides by ____, ____ times resulting in a megagametophyte with ___ cells and ___ nuclei. This is called the ____ sac. One cell will be the ___ cell and one cell will have __ polar nuclei
Mitosis, 4, 7, 8, embryotic, egg, 2
A sperm nucleus moves toward a flower's ovary through a long passageway called a pollen _____
Tube
Which cells signal the pollen tube? A. Egg B. Antipodals C. Synergids D. Polar Nuclei
Synergids
A pollen grain is A. A haploid structure B. A diploid structure C. First a diploid then a haploid structure D. First a haploid then a diploid structure
A haploid structure
What is an endosperm? A. A 3n Cell B. Food rich tissue C. Tissue formed from the second stage of double fertilization D. All of the above
All of the above
In a flower's stamen, the filament is topped by a(an) _____
Anther
In an angiosperm, pollen grains are produced in the A. Stigma B.Filament C. Carpel D. Anther
Anther
A seed with two seed leaves is called a ____
Dicot
A seed that is dispersed to an area far away from the parent plant might face less A. Competition for space B. Chance of self-pollination C. Favorable conditions for germination D. Competition with parent plants
Competition with parent plants
The seed leaves of a flowering plant are known as A. Endosperm B. Carpels C. Radicles D. Cotyledons
Cotyledons
A period during which the embryo of a seed is alive but not growing is A. Fruit production B. Seed production C. Germination D. Dormancy
Dormancy
How many nuclei are contained within an angiosperm embryo sac? A. Two B. Four C. Six D. Eight
Eight
The fusion of two cells is called ______
Fertiliztion
In angiosperms, reproduction takes place in A. Leaves B. Flowers C. Cones D. Pollen
Flowers
A ripened ovary that contains angiosperm seeds is called a(an) A. Embryo B. Seed C. Fruit D. Vegetable
Fruit
The crossing of different varieties of plants is called A. Tissue culture B. Hybridization C. Dicot D. Grafting
Hybridization
Pollen grains are produced by A. Male reproductive structures B. Female reproductive structures C. Ovules D. Flowers
Male reproductive structures
In the pistil, a megasporocyte undergoes _____ to produce one haploid megaspore
Meiosis
A pollen grain landing near an ovule produces A. Gametophyte B. Pollen Tube C. Flower D. Stamen
Pollen Tube
The process in which a single plant produces many offspring genetically identical to itself is called A. Sexual reproduction B. Agriculture C. Dormancy D. Propogation
Propagation
The sterile leaves of a flower are the A. Carpel and stamens B. Filaments and anthers C. Stigma and style D. Sepals and petals
Sepals and petals
In plants, A. Gametes become the gametophyte generation B. Spores become the sporophyte generation C. Sporophyte organisms produce spores D. Both A and B are correct
Sporophyte organisms produce spores
In a coconut, the "milk" is actually A. The seed coat B. The Ovary C. The fruit D. The endosperm
The endosperm
If an egg cell is fertilized by a sperm nucleus, a _____ is produced
Zygote