70 results found

Search Results for: xylem

Xylem

Xylem Definition Xylem is defined as a plant tissue that transfers water and nutrients from roots to all over the plant... Read More

Xylem vessel

Definition noun, plural: xylem vessels (botany) One of the tracheary elements of xylem that is characterized by being made... Read More

Secondary xylem

Definition noun, plural: secondary xylems The xylem formed as a result of the secondary growth from the vascular... Read More

Primary xylem

Definition noun, plural: primary xylems The xylem formed during the primary growth from procambium of root and shoot... Read More

Xylem fiber

Definition noun, plural: xylem fibers Any of the fibers made up of dead sclerenchyma cells in between the xylem vessels... Read More

Xylem parenchyma

Definition noun Parenchyma cells in the xylem tissue and are involved mainly in the storage of carbohydrates, oils, and... Read More

Protoxylem

Definition noun The first xylem to develop from the procambium, and characterized by narrow tracheary elements with annular,... Read More

Metaxylem

Definition noun The part of the primary xylem that is last to develop from the procambium, and characterized by weblike or... Read More

Stems

External Form of a Woody Twig A woody twig, or stem, is an axis with leaves attached. The leaves are arranged in various... Read More

Tracheary elements

Definition noun (botany) The principal conductive cells of the xylem associated with the conduction of water and minerals... Read More

Vascular plants

Definition of Vascular plants The term 'vascular' is derived from the Latin word vāsculum, vās, meaning "a container and... Read More

Hardwood

Definition noun (botany) The wood (secondary xylem) of an angiosperm tree Supplement Vascular plants, e.g. gymnosperms and... Read More

Vascular tissue

Definition noun, plural: vascular tissues (botany) A complex permanent tissue involved in the conduction of materials (e.g.... Read More

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

Tracheid

Definition noun, plural: tracheids (botany) A tubular cell in the xylem of vascular plants whose primary function is to... Read More

Roots

Upon seed germination, the embryo root, called the radicle, grows and develops into the first root. The radicle may thicken... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Plant Tissues

Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More

Dendrology

Definition noun The study of wooden plants such as trees and shrubs Supplement Dendrology is the study of wooden plants. It... Read More

Pith

Pith Definition In general, the term "pith" refers to the "soft inner portion" of something. In botany, a pith refers... Read More

Softwood

Definition noun (botany) The wood (secondary xylem) of a gymnosperm tree Supplement Vascular plants (tracheophytes) are... Read More

Cohesion

Cohesion Definition What is cohesion? Cohesion, in science definition, refers to the state of cohering or sticking together... Read More

Plant Water Regulation

A plant requires water as an essential ingredient of photolysis, the photochemical stage of photosynthesis where water is... Read More

Sapwood

Definition noun The white, softer, outermost wood that has not yet become heartwood and is involved in conducting... Read More

Heartwood

Definition noun The central wood in a branch or stem characterized by being composed of dead cells, more resistant to decay,... Read More

Turgor pressure

In biology, turgor pressure pertains to the pressure that is exerted by the fluid (e.g. water) against the cell wall. It is... Read More

Differentiation

Differentiation in biology is the process where less specialized cells undergo changes to develop specialized structures and... Read More

Adhesion

Adhesion Definition Adhesion is the binding or attraction between dissimilar molecules, atoms, surfaces, or substances. The... Read More

Leaf

Leaf Definition (botany) A plant organ that is specialized for photosynthesis. Collectively, it constitutes foliage.... Read More

Sclerenchyma

Definition noun, plural: sclerenchymata, sclerenchymas (botany) A fundamental type of tissue in plants characterized by... Read More

Transport

In biology, transport refers to the act or the means by which a molecule or ion is moved across the cell membrane or via the... Read More

Water in Plants

The movement of molecules, specifically water and any solutes, is vital to understand in light of plant processes. This will... Read More

Seed Plants

There are two main subdivisions of seed plants—the ones without covered seeds, the gymnosperms, and the ones with covered... Read More

Vascular bundle

vascular bundle strand of vascular tissue in a plant, composed of xylem and phloem. A unit strand of the vascular system in... Read More

Tracheophyte

Definition noun, plural: tracheophytes A vascular plant contains the conducting systems which consist of xylem for... Read More

Vascular Plants: Ferns and Relatives

These plants are seedless plants, but unlike the bryophytes, they do have vascular tissue (xylem and phloem). Because of the... Read More

Phloem

Definition noun, plural: phloems A vascular tissue in plants that functions primarily in transporting organic food materials... Read More

Flora

Flora in Roman history refers to flowers. Flora was considered the god of spring for the Roman empire. In ecology, flora is... Read More

Bryophytes

Bryophytes (nonvascular plants) do not have xylem or phloem. The habitations of this plant group are widely varied and... Read More

Procambium

Definition noun, plural: procambia (botany) The primary meristem where the primary vascular tissues develop... Read More