plants Flashcards

1
Q

Protist

A

A protist is any eukaryotic organism that is not an animal, plant or fungus. The protists do not form a natural group, or clade, but are often grouped together for convenience, like algae or invertebrates

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2
Q

Heterotroph

A

an organism deriving its nutritional requirements from complex organic substances.

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3
Q

Eukaryote

A

A eukaryote is an organism whose cells have a cell nucleus and other organelles enclosed within membranes. Eukaryotes belong to the domain Eukaryota or Eukarya, and can be unicellular or multicellular organisms.

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4
Q

Decomposer

A

Decomposers are organisms that break down dead or decaying organisms, and in doing so, they carry out the natural process of decomposition.

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5
Q

Parasite

A

In biology, parasitism is a non-mutual relationship between species, where one species, the parasite, benefits at the expense of the other, the host. Traditionally parasite primarily meant an organism visible to the naked eye, or a macroparasite.

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6
Q

Host

A

an animal or plant on or in which a parasite or commensal organism lives.

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7
Q

Fungi

A

A fungus is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.

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8
Q

Spore

A

An endospore is a dormant, tough, and non-reproductive structure produced by certain bacteria from the Firmicute phylum.

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9
Q

Lichen

A

A lichen is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi in a symbiotic relationship. The combined lichen has properties different from those of its component organisms

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10
Q

Nonvascular plant

A

Non-vascular plants are plants without a vascular system consisting of xylem and phloem. Although non-vascular plants lack these particular tissues, many possess simpler tissues that are specialized for internal transport of water.

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11
Q

Vascular plant

A

Vascular plants, also 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.

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12
Q

Gymnosperm

A

The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. The term “gymnosperm” comes from the Greek composite word γυμνόσπερμος, meaning “naked seeds”.

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13
Q

Angiosperm

A

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.

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14
Q

Photosynthesis

A

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms’ activities.

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15
Q

Cellular respiration

A

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

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16
Q

Transpiration

A

Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers.

17
Q

Tropism

A

the turning of all or part of an organism in a particular direction in response to an external stimulus.

18
Q

Gravitropism

A

Gravitropism (also known as geotropism) 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.

19
Q

Phototropism

A

Phototropism is the growth of an organism which responds to a light stimulus. It is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs.

20
Q

Asexual Reproduction

A

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.

21
Q

Toxoplasmosis

A

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.

22
Q

Malaria

A

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.

23
Q

Giardia

A

Giardia infection is an intestinal infection marked by abdominal cramps, bloating, nausea and bouts of watery diarrhea. Giardia infection is caused by a microscopic parasite that is found worldwide, especially in areas with poor sanitation and unsafe water.