protist, plant, fungi Flashcards
any of a diverse taxonomic group and especially a kingdom (Protista syn. Protoctista) of eukaryotic organisms that are unicellular and sometimes colonial or less often multicellular and that typically include the protozoans, most algae, and often some fungi (as slime molds)
Protist
an organism deriving its nutritional requirements from complex organic substances.
Heterotroph
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.
Eukaryote
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Decomposer
an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host’s expense.
Parasite
an animal or plant on or in which a parasite or commensal organism lives.
Host
plural form of fungus.
Fungi
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.
Spore
is a composite organism that arises from algae or cyanobacteria (or both) living among filaments of a fungus in a symbiotic relationship. The combined life form has properties that are very different from the properties of its component organisms. Lichens come in many colors, sizes, and forms
Lichen
Simple nonvascular plants Green algae Complex nonvascular plants Bryophyta, mosses Marchantiophyta, liverworts Anthocerotophyta, hornworts
Nonvascular plant
lso known as tracheophytes and also higher plants, form a large group of plants that are defined as those land plants that have lignified tissues for conducting water and minerals throughout the plant
Vascular plant
are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and Gnetales. The term “gymnosperm” comes from the Greek composite word γυμνόσπερμος, meaning “naked seeds”, after the unenclosed condition of their seeds
Gymnosperm
also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants, with about 350,000 species.
Angiosperm
a process used by plants and other organisms to convert light energy, normally from the Sun, into chemical energy that can be later released to fuel the organisms’ activities.
Photosynthesis
is the 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.
Cellular respiration
s the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. Transpiration is essentially evaporation of water from plant leaves.
Transpiration
the turning of all or part of an organism in a particular direction in response to an external stimulus.
Tropism
is a turning or growth movement by a plant or fungus in response to gravity. It is a general feature of all higher and many lower plants as well as other organisms.
Gravitropism
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 ).
Phototropism
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.
Asexual Reproduction
a disease caused by toxoplasmas, transmitted chiefly through undercooked meat, or in soil or cat feces. Symptoms generally pass unremarked in adults, but infection can be dangerous to unborn children.
Toxoplasmosis
an intermittent and remittent fever caused by a protozoan parasite that invades the red blood cells. The parasite is transmitted by mosquitoes in many tropical and subtropical regions.
Malaria
is a genus of anaerobic flagellated protozoan parasites of the phylum Sarcomastigophora that colonise and reproduce in the small intestines of several vertebrates, causing giardiasis
Giardia