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Botanical Terms -active site
The part of an *enzyme molecule that binds it to the *substrate or substrates to form an enzyme–substrate complex. The conformation is not absolute and may alter according to reaction conditions.
The part of an *enzyme molecule that binds it to the *substrate or substrates to form an enzyme–substrate complex. The conformation is not absolute and may alter according to reaction conditions.
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Botanical Terms - adaptive pathway
a sequence of tiny adaptive steps as opposed to one big one that allows one to pass an environmental and adaptive threshold and enter a new adaptive zone. Small adjustments add up over time to make the organism essentially pre-adapted to the new environment
a sequence of tiny adaptive steps as opposed to one big one that allows one to pass an environmental and adaptive threshold and enter a new adaptive zone. Small adjustments add up over time to make the organism essentially pre-adapted to the new environment
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Botanical Terms -Actinostele
a *monostele form of *protostele where the *xylem's cross-section is lobed or star-shaped
a *monostele form of *protostele where the *xylem's cross-section is lobed or star-shaped
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Botanical Terms – Actinostrobus
Actinostrobus (family *Cupressaceae, section *Coniferophyta)
a genus of two species of trees found as *emergents on sands and heaths in the south and west of Australia, native to the region's southwest. The swamp cypress, or A. pyramidalis, is a pyramid-shaped conifer that can grow to a height of 4 m. Its dense, vivid green foliage reaches the ground. It is raised.
Actinostrobus (family *Cupressaceae, section *Coniferophyta)
a genus of two species of trees found as *emergents on sands and heaths in the south and west of Australia, native to the region's southwest. The swamp cypress, or A. pyramidalis, is a pyramid-shaped conifer that can grow to a height of 4 m. Its dense, vivid green foliage reaches the ground. It is raised.
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Botanical Terms - Actinotus (*Apiaceae family)
a genus believed to have connected the evolution of cosmopolitan genera to indigenous Australian Apiaceae genera. Often called "flannel flowers," the majority of the genus's species are *biennial herbs that grow in arid and low-fertility locations. Australia is home to 17 species, while New Zealand is home to one
a genus believed to have connected the evolution of cosmopolitan genera to indigenous Australian Apiaceae genera. Often called "flannel flowers," the majority of the genus's species are *biennial herbs that grow in arid and low-fertility locations. Australia is home to 17 species, while New Zealand is home to one
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Botanical Terms - action spectrum
a graph showing how well certain light wavelengths support a particular photoresponse, such as *photosynthesis or *phototropism
a graph showing how well certain light wavelengths support a particular photoresponse, such as *photosynthesis or *phototropism
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Botanical Terms -activation energy (energy of activation)
The energy that must be delivered to a system in order to increase the incidence within it of reactive molecules, thus initiating a reaction. The fact that *enzymes significantly reduce the activation energy of numerous metabolic processes is a crucial characteristic.
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The energy that must be delivered to a system in order to increase the incidence within it of reactive molecules, thus initiating a reaction. The fact that *enzymes significantly reduce the activation energy of numerous metabolic processes is a crucial characteristic.
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Botanical Terms - Activator
An ion of metal that works with an enzyme or its substrate to initiate a chemical reaction.
An ion of metal that works with an enzyme or its substrate to initiate a chemical reaction.
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Botanical Terms - adaptive breakthrough
A shift in the course of evolution brought about by the adoption of a unique adaptation that allows a population or taxon to shift from one compatible zone to another. Such movements could, at their most extreme, be from air to land or from sea to land.
A shift in the course of evolution brought about by the adoption of a unique adaptation that allows a population or taxon to shift from one compatible zone to another. Such movements could, at their most extreme, be from air to land or from sea to land.
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Botanical Terms -adaptation
that which an organism can use to its full potential in a particular environmental zone while also fitting it generally.
that which an organism can use to its full potential in a particular environmental zone while also fitting it generally.
