Search Results for: secondary cell wall
Secondary cell wall
Definition noun plural: secondary cell walls ˈsɛkənˌdɛɹi sɛl wɔːl The layer of the plant cell wall that forms... Read More
Primary cell wall
Definition noun plural: primary cell walls ˈpɹaɪməɹi sɛl wɔːl The layer of the plant cell wall that forms prior to... 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
Middle lamella
Definition noun plural: middle lamellae ˈmɪdəl ləˈmɛl.ə A pectin-rich intercellular material that glues the... 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
Plant Cells vs. Animal Cells
Plant Cells Most cells are not visible with the naked eye. However, with microscopes of various types, plant cells can be... Read More
Parenchyma
Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More
Living things
Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More
Eukaryotic cells
Eukaryotic Cells Definition What is a eukaryotic cell? Eukaryotic cells refer to the cells of (or derived from) eukaryotes,... 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
Active transport
Active transport is a type of cellular transport in which substances (e.g. ions, glucose, and amino acids) are transported... Read More
Bast fiber
Definition noun (botany) The durable, nonliving sclerenchyma fiber in the phloem, providing support to the... Read More
Ground tissue
Definition noun, plural: ground tissues (botany) Any of the non-dermal, non-vascular tissue of vascular... Read More
Collenchyma
Definition noun, plural: cholenchymas (botany) A fundamental type of tissue in plants characterized by cells with thicker... 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
Phloem fiber
Definition noun (botany) The elongated sclerenchyma cells in the phloem, and is responsible for providing tension strength... Read More
Secondary xylem
Definition noun, plural: secondary xylems The xylem formed as a result of the secondary growth from the vascular... Read More
Human Reproduction
Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More
Sclerenchyma
Definition noun, plural: sclerenchymata, sclerenchymas (botany) A fundamental type of tissue in plants characterized by... Read More
Polypeptide
Polypeptide Definition Biology What are polypeptides? A polypeptide is defined as a polymer of amino acids joined together... Read More
Primary meristem
Definition noun, plural: primary meristems (''botany') A type of meristem that is involved in the primary growth and thus... Read More
Phloem sclerenchyma
Definition noun The sclerenchyma cells in the phloem of many vascular plants, and is responsible for providing mechanical... Read More
Spermatogenesis
Spermatogenesis Definition Spermatogenesis is the biological process of producing sperm cells. It occurs in the male gonad... Read More
Chlorenchyma
Definition noun A parenchyma cell with chloroplasts, and is therefore photosynthetic Supplement Vascular plants are... Read More
Golgi apparatus
Golgi Apparatus Definition The Golgi apparatus is a membrane-bound organelle in eukaryotic cells. It plays a crucial role... Read More
Myocardium
Myocardium Definition What is the myocardium of the heart? It is the muscular middle layer of the heart that is... Read More
Cyanobacteria
Cyanobacteria Definition Cyanobacteria is a group of photosynthetic bacteria widely distributed in various aquatic habitats... 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
Y chromosome
Y chromosome Definition The Y chromosome constitutes one member of the pair of sex chromosomes within an organism, a common... 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
Spermiogenesis
Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More