Physiology

(1) Physiology [ Natural sciences ]
Adjective: Physiologic
Adverb: Physiologically

Dictionary of botanic terminology - index of names


	The physiology is the study of the mechanical, physical, and biochemical functions of living beings and their parts:

Physiology is the branch of biology that deals with the internal processes of living organism, including such functions as metabolism, water movement, nutrient transport, respiration, and reproduction, rather than with their shape or structure; the way a particular body or organism works

Physiology has traditionally been divided into:

Plant physiology and
Animal physiology dealing with vegetable and animal life respectively.

But the principles of physiology are universal, no matter what particular organism is being studied. Physiology has also independent subdivisions such as cell physiology (the functioning of individual cells)
Other branches of scientific study have grown out of physiology research for example biochemistry, Genetics, pharmacology

(2) Physiology [ Biology ]


	The physical and chemical processes or functions of a living organism or its parts or cells that are required for life activities.

Physiologic [ Biology ]


	Related to the functions of the body of an organism. Normal; not pathologic; characteristic of or conforming to the normal functioning or state of the body or a tissue or organ

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Holdfast roots [ Botany ]
Dictionary of botanic terminology - index of names

Some species of climbing plants develop holdfast roots which help to support the vines on trees, walls, and rocks. By forcing their way into minute pores and crevices, they hold the plant firmly in place.

Climbing plants, like the poison ivy (Toxicodendron radicans), Boston ivy (Parthenocissus tricuspidata), and trumpet creeper (Campsis radicans), develop holdfast roots which help to support the vines on trees, walls, and rocks. By forcing their way into minute pores and crevices, they hold the plant firmly in place. Usually the Holdfast roots die at the end of the first season, but in some species they are perennial. In the tropics some of the large climbing plants have hold-fast roots by which they attach themselves, and long, cord-like roots that extend downward through the air and may lengthen and branch for several years until they strike the soil and become absorbent roots.

Major references and further lectures:
1) E. N. Transeau “General Botany” Discovery Publishing House, 1994