Plant Life Cycle
This life cycle is unique to the kingdom Plantae and changes between a gametophyte and sporophyte cycle
what is Alternation of Generations
modern plants are thought to share a common ancestor with this green algae
what is charophyte
this is the name for the embryonic shoot which grows tall in order to support the leaves with access to as much sunlight as possible
what is the hypcotyl
these seeds are produced by gymnosperms and are not protected in a fruit
what are naked seeds
this stem cross section is very randomized in ground tissue
what is a monocot stem
This part of the life cycle is dominant in gymnosperms
what is the sporophyte?
this is the oldest known group of land plants and arose about 450 million years ago
what are bryophytes
The pepo belongs to this category of fruit
what is a simple fruit
the seeds of gymnosperms are often dispersed by this technique
what is wind dispersal
this structure contains the ovules
what is the ovary
This generation of the life cycle is haploid and forms male and female gametes
what is the gametophyte
this characteristic of phylum Chlorophyta indicates they share a common ancestor with land plants
what are chloroplasts
this category of fruit splits open to release seeds when they are mature
what is a dry dehiscent fruit
this group of plants is only second to insects in level of diversity
what are angiosperms
this structure encompases the pistil, style, and ovary
what is the carpel
this is the process by which haploid spores are created from diploid sporophytes
what is meiosis
the lack of these structures in seedless non-vascular plants leads them to absorb water directly through the surface
what are true leaves?
this type of fruit has the pericarp soft at maturity
what is a fleshy fruit
angiosperms divide into these two categories based on different characteristics found in the plant
what are monocots and dicots
this is the female structure of the plant
what is the archegonia
these cells protect the gamete
what are gametangia cells
this is the phylum which Marchantia belongs
what is Hepatophyta
in this category, each carpel of the fruit splits away and curls back from the central axis
what are geraniums
this structure encompasses the male gamete
what is a pollen grain
this structure contains the pollen sacs within the anther
what is the microsporangia