Ch 2 - Plants: Revision Flashcards
What are the most important of God’s provisions for life on earth?
green plants
Who recognized that flowers are organs intricately designed for plant reproduction?
Christian Konrad Sprengel
What was Sprengel’s goal with his botanical studies?
Sprengel’s goal was to bring glory to God for the wise design, purpose, and provision placed into His living creation.
What is the primary purpose of a flower?
The primary purpose of a flower is the reproduction of the plant.
Name the four main parts of a flower.
pistil, stamens, petals, sepals
List and define the three parts of a pistil.
- *stigma** - the sticky bit at the top of the pistil
- *ovary** - the large, rounded bottom of the pistil
- *style** - the stalk that connects the stigma to the ovary
What part of the flower produces pollen?
anther (part of the stamen)
What two processes must occur before a seed can form?
pollination and fertilization
Differentiate between pollination and fertilization.
pollination: transfer of pollen from the anther to the stigma
fertilization: uniting of a sperm cell from a pollen grain with an egg cell in the ovary
What happens once pollination has occurred?
Once a pollen grain attaches to a stigma, a pollen tube begins growing from the pollen’s location on the stigma, through the style, and into the ovary. The sperm cell then travels through the pollen tube to unite with the egg cell.
What structure contains the embryo of a plant?
the seed
Name the three parts of a typical seed.
embryo, endosperm, seed coat
What is the term for the root of an embryo?
radicle
What is the scientific definition of a fruit?
the ripened ovary of a flower
What is the term for the distributing of seeds after they are mature?
dispersal
Differentiate between mechanical dispersal and agent dispersal.
mechanical: ripened fruit bursts open, scattering the seeds
agent: animals, humans, or physical processes like wind and ocean currents scatter the seeds
Name the part of the flower indicated by the number 1.
the petal