24 results found

Search Results for: sieve cell

Sieve cell

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

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

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

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

Sieve-tube element

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

Plant Cell Defense

Hydrogen Peroxide Plants release hydrogen peroxide in response to the presence of a fungal invasion, which attacks by... 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

Filtration

Filtration Definition What is filtration? Filtration is separating a solid from a fluid through a porous material that... Read More

Element

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

Bast fiber

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

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... 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 fiber

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

The consequences of antibiotic use in horticulture

Leading articles Frederick R. Falkiner* Department of Clinical Microbiology, Trinity College, Dublin; Central Pathology... Read More

Tracheophyte

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

Phloem

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

Ethmoid air cells

Definition noun The numerous tiny-walled, fluid-filled cells that lie in the ethmoid bone of the skull (i.e. specifically... Read More

Protophloem

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

Vascular tissue

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