Search Results for: maturity
Fruits, Flowers, and Seeds
Flowering plants grow in a wide variety of habitats and environments. They can go from germination of a seed to a mature... 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
Plant cell
Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More
Bryophytes
Bryophytes (nonvascular plants) do not have xylem or phloem. The habitations of this plant group are widely varied and... 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
Cork cambium
Cork Cambium Definition Cork cambium is a secondary meristematic tissue that has a pivotal role in secondary growth in... Read More
Maturation
Definition noun, plural: maturations (1) The process of differentiation (2) The process of becoming... Read More
Parenchyma
Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More
Collenchyma
Definition noun, plural: cholenchymas (botany) A fundamental type of tissue in plants characterized by cells with thicker... Read More
Erythrocyte
Erythrocyte Definition Erythrocytes (red blood cells or RBCs) are the myeloid series of specialized cells that play an... Read More
Definitive host
Different Biological Relationships The biological world is interconnected whether we notice it or not. All the life forms... Read More
Ground tissue
Definition noun, plural: ground tissues (botany) Any of the non-dermal, non-vascular tissue of vascular... Read More
Physical Development in Humans
The Newly Born Child Depending on the nutrients available to the child within pregnancy and the genetic makeup of the... 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
Simple fruit
Definition noun, plural: simple fruits A type of fruit that develops from a single or compound ovary with only one pistil... Read More
T-helper cell
Definition noun, plural: T-helper cells A type of T lymphocyte that assists by activating antigen-presenting leukocytes,... Read More
Cytotoxic T cell
Definition noun, plural: cytotoxic T cells A T cell responsible for inducing death to target cells (e.g. infected somatic... Read More
Memory T cell
Definition noun, plural: memory T cells A long-lived T cell that bears receptors for an antigen during its encounter with a... Read More
Phloem fiber
Definition noun (botany) The elongated sclerenchyma cells in the phloem, and is responsible for providing tension strength... Read More
Protophloem
Definition noun, plural: protophloems The first phloem to develop from the procambium Supplement The phloem is a vascular... Read More
Osteoblast
Definition noun, plural: osteoblasts A type of bone cell that arises from fibroblasts, and upon maturity, becomes associated... Read More
Growth Patterns
When measuring growth, it is more desirable to use dry mass as a reliable indication. However, since you can't just 'suck'... Read More
Ovarian cycle
Definition noun The cycle that depicts the changes in the ovarian follicle happening during a menstrual cycle, and is... Read More
Filarioidea
Definition noun (taxonomy) A superfamily of the phylum Nematoda and is comprised of small, threadlike parasitic nematodes... Read More
Phloem sclerenchyma
Definition noun The sclerenchyma cells in the phloem of many vascular plants, and is responsible for providing mechanical... 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
Indirect life cycle
Definition noun A type of parasitic life cycle wherein the parasite is transmitted indirectly from one host to the next,... 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 element
Definition noun, plural: sieve tube elements A specialized type of sclerenchyma cell that forms a sieve tube of... Read More
Chlorenchyma
Definition noun A parenchyma cell with chloroplasts, and is therefore photosynthetic Supplement Vascular plants are... Read More
Cell Structure
The interior of human cells is divided into the nucleus and the cytoplasm. The nucleus is a spherical or oval-shaped... Read More