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