plants Flashcards
Protist
an organism that belongs to the king protista
Heterotroph
are organism that cannot make their on food
Eukaryote
an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus. Eukaryotes include all living organisms other than the eubacteria and archaebacteria.
Decomposer
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Parasite
an organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other’s expense.
Host
an animal or plant on or in which a parasite or commensal organism lives.
Fungi
any of a group of spore-producing organisms feeding on organic matter, including molds, yeast, mushrooms, and toadstools.
Spore
a minute, typically one-celled, reproductive unit capable of giving rise to a new individual without sexual fusion, characteristic of lower plants, fungi, and protozoans.
Lichen
a simple slow-growing plant that typically forms a low crusty, leaflike, or branching growth on rocks, walls, and trees.
Nonvascular plant
Nonvascular Plants Defined. Nonvascular plants belong to the division Bryophyta, which includes mosses, liverworts, and hornworts. These plants have no vascular tissue, so the plants cannot retain water or deliver it to other parts of the plant body.
Vascular plant
a plant that is characterized by the presence of conducting tissue.
Gymnosperm
a plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo.
Angiosperm
a plant that has flowers and produces seeds enclosed within a carpel. The angiosperms are a large group and include herbaceous plants, shrubs, grasses, and most trees.
Giardia
An intestinal infection caused by a giardia parasite.
. Malaria
A disease caused by a plasmodium parasite, transmitted by the bite of infected mosquitoes.
Toxoplasmosis
A disease that results from infection with the Toxoplasma gondii parasite.
Asexual Reproduction
Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.
Phototropism
the orientation of a plant or other organism in response to light, either toward the source of light ( positive phototropism ) or away from it ( negative phototropism ).
Gravitropism
Gravitropism (also known as geotropism) is a coordinated process of differential growth by a plant or fungus in response to gravity pulling on it. It is a general feature of all higher and many lower plants as well as other organisms.
Tropism
the turning of all or part of an organism in a particular direction in response to an external stimulus.
Transpiration
(of a plant or leaf) the exhalation of water vapor through the stomata.
Cellular respiration
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.
Photosynthesis
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
