47 results found

Search Results for: cell plate

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

Animal cell

An animal cell is the fundamental functional unit of life of animals. It is also the basic unit of reproduction. Animal... 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

Cell plate

Definition noun A disc like structure in the plane of the equator of the spindle that separates the two sets of chromosomes... Read More

Mitosis

Mitosis Definition What is mitosis? In biology, mitosis refers to the cellular process where a single cell divides... Read More

Middle lamella

Definition noun plural: middle lamellae ˈmɪdəl ləˈmɛl.ə A pectin-rich intercellular material that glues the... Read More

Plant

Plant Definition (botany) Any of the eukaryotic organisms of the biological kingdom Plantae, characterized by being... Read More

Centrosome

Centrosome Definition What is a centrosome? The centrosome is considered to be the main microtubule-organizing... Read More

Meiosis and Alternation of Generations

Review of Mitosis: Cell Cycle The cell cycle contains the process in which cells are either dividing or in between... Read More

Animal

Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More

Cytokinesis

Definition noun The division of the cytoplasm and the plasma membrane following the division of the nucleus resulting into... Read More

Homologous chromosome

A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More

Nervous System

    THE is the most complicated and highly organized of the various systems which make up the human body. It is the... 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

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

Charophyta

Charophyta is a taxonomic group (a phylum) comprised of green algae that live predominantly in freshwater habitats. Members... 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

Metaphase plate

Definition noun The plane in the equatorial region of the spindle where chromosomes align during cell division (i.e. mitosis... Read More

Cells know when to separate at mitosis

How do cells know when to separate during mitosis? A molecule called BubR1 was found to regulate the timing of the division... Read More

Muscle cell

Definition noun, plural: muscle cells Any of the long, tubular mature contractile cells that make up the muscle... Read More

Chromosome

Chromosomes Definition noun, plural: chromosomes. Word origin: Greek chroma ("color") + soma ("body"). What are... 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

Lamellae

Definition noun, singular: lamella (general) Thin structures resembling a plate. (cell biology) Intergrana thylakoids, i.e.... Read More

Metaphase

Definition noun The phase following prophase and preceding anaphase of cell divisions (i.e. mitosis and meiosis), and... Read More

Metaphase II

Definition noun The second stage in meiosis II after prophase II, and highlights the alignment of chromosomes along a single... Read More

Miniature end plate potential

miniature end plate potential (Science: physiology) small fluctuations (typically 0.5 mV) in the resting potential of... Read More

Metaphase I

Definition noun The second stage in the first meiotic division after prophase I, and highlights the alignment of paired... Read More

Anaphase

Definition noun The phase following metaphase and preceding telophase of cell divisions (i.e. mitosis and meiosis), and... Read More

Petri dish

Definition noun, plural: Petri dishes A circular dish made of glass or plastic and with a loose-fitting cover, used in... Read More

Muscle

Muscle cells are specialized to generate force and movement. There are three types of muscle tissue: (1) skeletal muscle,... Read More

Filtration

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

Hyaline cartilage

Hyaline Cartilage Definition Before we define hyaline cartilage, let us understand what cartilage is. What is cartilage? Is... Read More

Law of Segregation

Mendel’s Laws of Inheritance The father of genetics, Gregor Mendel, reported his findings in 1860 that were initially... Read More

Spindle fiber

Definition noun, plural: spindle fibers Any of a network of filaments that collectively form a mitotic spindle (in... Read More

Anaphase I

Definition noun The third stage in the first meiotic division after prophase I, and highlights the separation of paired... Read More

Nail matrix

Definition noun The area consisting of mitotically active layer of cells at the base of the fingernail or the toenail and... Read More

Meiotic spindle

Definition noun The collective term for all the spindle fibers that form during meiosis Supplement The spindle apparatus is... Read More

Comb plate

Comb plate (Science: cell biology) large flat organelles formed by the fusion of many cilia. Vertical rows of comb plates... Read More

Inoculation

Inoculation Definition In Immunology, inoculation is defined as the process of introducing an antigenic substance or... 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