69 results found

Search Results for: phloem

Primary phloem

Definition noun The type of phloem derived from the primary meristem during the development of a vascular... Read More

Secondary phloem

Definition noun The type of phloem derived from the secondary meristems of a vascular plant Supplement The phloem is a... Read More

Phloem fiber

Definition noun (botany) The elongated sclerenchyma cells in the phloem, and is responsible for providing tension strength... Read More

Metaphloem

Definition noun, plural: metaphloems A component of the primary phloem that develops often following the differentiation of... Read More

Phloem sclerenchyma

Definition noun The sclerenchyma cells in the phloem of many vascular plants, and is responsible for providing mechanical... Read More

Phloem

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

Protophloem

Definition noun, plural: protophloems The first phloem to develop from the procambium Supplement The phloem is a vascular... Read More

Phloem parenchyma

Definition noun The parenchyma cells in between the sieve tubes of the phloem, and functions primarily for food... Read More

Xylem

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

Bast fiber

Definition noun (botany) The durable, nonliving sclerenchyma fiber in the phloem, providing support to the... 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

Sieve cell

Definition noun, plural: sieve cells (botany) The main conductive cell in the phloem of the 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

Sieve element

Definition noun (botany) A food-conducting cell in the phloem of vascular plants Supplement The phloem is the vascular... Read More

Companion cell

Definition noun (botany) Any of the metabolically-active parenchyma cells associated with a sieve tube element in the phloem... 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

Sclerenchyma

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

Sieve-tube element

Definition noun, plural: sieve tube elements A specialized type of sclerenchyma cell that forms a sieve tube of... Read More

Bark

Definition noun, plural: barks (botany) The outermost covering of stems and roots of woody plants (especially trees), and is... Read More

Sclereid

Definition noun, plural: sclereids A type of sclerenchyma cell of varying shapes but are typically shorter than sclerenchyma... Read More

Parenchyma

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

Element

Element Definition noun plural: elements el‧e‧ment, ˈel.ɪ.mənt (biochemistry) A substance that cannot be... 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

Sieve tube

Definition noun, plural: sieve tubes (botany) Any of the tubes in the phloem comprised of cells joined end-to-end through... Read More

Procambium

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

Plant cell

A plant cell refers to any cell of a plant. Plant cells are presumed to have evolved from the early green algae and probably... Read More

Tracheophyte

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

Leaf

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

Hardwood

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

Primary xylem

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

Cortex

Definition noun, plural: cortexes, cortices (anatomy) The outer layer or region of a structure or an internal organ (botany)... Read More

Raffinose

Definition noun A trisaccharide formed from the combination of three monomers: galactose, glucose, and fructose, and has a... Read More

Plant sets off “SOS” for plant defense when it gets hurt

When herbivore, such as an insect, nibbles a plant leaf, the plant sets off an "SOS" or distress signal as one of the... Read More