CellsNotice that the larger cube has more surface area and more volume but less surface area for each cubic centimeter of volume.
Full article >>>B
cells are not only produced in the
b
one marrow but also mature there.
However, the precursors of T
cells leave the bone marrow and mature in the
t
hymus (which accounts for their designation).
Full article >>>Cells Alive! Very interesting
site with new features each month.
The Nanoworld Image Gallery Lots of interesting pics and links for
microscopes.
History of the Light
Microscope Descriptive title says it all.
Full article >>>Nerve
cells projecting from the motor
cortex to other parts of the brain and
spinal cord. The pyramidal nerve
cells play a key role in performing highly skilled movements.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
Full article >>>All body
cells, except the reproductive
cells.
explained:
Listen to a detailed explanation.
Full article >>>The
migration of different
cell types, such as
leucocytes and tumour
cells, involves cellular strategies to overcome the physical resistance of three-dimensional
tissue networks, ...
Full article >>>Cells in
culture, stained for
keratin (red) and
DNA (green)
The
cell is the structural and functional unit of all living
organisms. Some
organisms, such as
bacteria, are
unicellular, consisting of a single
cell.
Full article >>>Purification of
cells and their parts is achieved in the following ways: ...
Full article >>>Cells derived from fetal
tissue have been used to generate so-called
embryonic
stem cells.
Full article >>>Cells contain a
DNA-activated
protein kinase. It is activated only by
DNA containing free ends, not by intact circular
DNA.
Cells also contain an ADP-ribosylase that is activated by
DNA damage.
Full article >>>Cells with the same
genetic material are observed to behave very differently when confronted with different microenvironments.
Full article >>>Cells: The basic units of life. All living
organisms are a collection of
cells.
Chromosomes: The self-replicating genetic structures of
cells.
Full article >>>cells on the outer surface of the earthworm
intestineSource: Noland, George B. 1983. General
Biology, 11th Edition. St. Louis, MO. C. V. Mosby
What Topic Is Your
BIOLOGY Paper On?
Full article >>>cells: the fundamental units of living things.
cellular respiration: the process by which
animals and other
organisms obtain the energy available in
carbohydrates.
Full article >>>cellsHave a basic knowledge of patterns of
gene expression.
3rd Quarter, January ...
Full article >>>Cells scattered among the
seminiferous tubules of the vertebrate testis that secrete testosterone and other
androgens, the male sex
hormones.
interstitial fluid ...
Full article >>>Cells regulate the activity of genes in part by increasing or decreasing their rate of
transcription.
Full article >>>B
cells: A major
family of small
lymphocytes that are
responsible for
antigen-specific
humoral immunity as part of the adaptive immunity. Their
antigen receptors are surface immunoglobulins (
antibodies).
Full article >>>sex cells gametes. In the male it is the
sperm and in the female it is the
egg.
Full article >>>bone cells The hard, rigid form of connective
tissue constituting most of the
skeleton of
vertebrates; composed chiefly of calcium salts. Also called bone (osseous)
tissue.
Bone os, G. osteon = bone.
Full article >>>Early
cells that serve as the mitotic progenitor of an
organ in
organogenesis.
Related Terms:
Mitosis ...
Full article >>>guard cells -- Pair of
cells which surround a
stomate and regulate its size by altering their shape.
gymnosperm -- n. A
plant that produces seeds, which are not enclosed; includes any
seed plant that does not produce
flowers.
Full article >>>glial cells- supporting
cells of the
nervous system, including oligodendrocytes and astrocytes in the vertebrate central
nervous system and
Schwann cells in the
peripheralnervous system ...
Full article >>>bottle
cells - epithelial
cells found at the initial
site of
gastrulation, lining the initial
archenteron, that temporarily become bottle-shaped; they maintain contact with the outer surface of the
embryo, ...
Full article >>>Clone Cells derived from a single
cell and thus expected to be genetically identical.
Cloning The production of multiple, genetically identical
molecules of
DNA,
cells, or
organisms.
Full article >>>3 108
cells per ml
Mutation rate
10-8
mutations per
gene per individual per generation ...
Full article >>>Somatic cells: Any
cell in the body except
gametes and their precursors.
Full article >>>Eukaryotic
cells (or
eukaryotes):
Organism whose
cells have:
a distinct
nucleus,
multiple
chromosomes, and
a myotic cycle.
This
classification includes
animals,
plants, and
fungi.
Full article >>>Live or fixed
cells are labeled by fluorescent dyes. Individual
cells are sorted based on their fluorescent
markers. Frequently used to for purifying
cells based on
cell surface
protein expressions, and for
cell cycle studies.
Other Resources ...
Full article >>>Pertaining to
cells. Typically used when referring to objects or events within a
cell. ...
Full article >>>A
class of
antibiotics that kills
bacterial
cells.
Bacteriophage (
phage or
phage particle). A
virus that in- fects
bacteria. Altered forms are used as
vectors for
cloning DNA. Bacteriostat.
Full article >>>Amniocentesis -- prenatal diagnosis method using
cells in the
amniotic fluid to determine the number and kind of
chromosomes of the
fetus and, when indicated, perform
biochemical studies. Amniocyte --
cells obtained by amniocentesis.
Full article >>>peroxisome Membrane-bounded
organelle in the
cytoplasm of eukaryotic
cells functioning in the destruction of
proteins and
characterized by peroxide-forming
enzymes. pH The negative logarithm of the hydrogen ion concentration in an aqueous solution.
Full article >>>Mitochondria - genetically independent
organelles that produce energy for the
cells along their many internal folds, called
cristae Mitosis - cellular
division that yields two identical
cells from one
cell through a five-step process ...
Full article >>>Selectable
marker A
gene which is usually constitutively
expressed and allows the
selection of
cells which carry it through growth on a selective medium.
Full article >>>Chromosome: rod-shaped bodies in the nuclei of
cells that consist of a string of genes and maintain the structure or arrangement of the
genetic code (
DNA).
Full article >>>Oncogene: A
gene in a
tumor virus or in
cancerous
cells which, when
transferred into other
cells, can cause
transformation (note that only certain
cells are susceptible to
transformation by any one
oncogene).
Full article >>>CLONE - Describes a large number of
cells,
viruses, or
molecules which are identical and which are derived from a single ancenstral
cell,
virus or
molecule.
Full article >>>The first broad group consists of disciplines that study the basic structures of living systems:
cells, genes etc.
Full article >>>Highly pleiomorphic
organelle of eukaryotic
cells that varies from short rod-like structures present in high number to
long branched structures. Contains
DNA and mito
ribosomes.
Full article >>>An immunoelectron-microscopy procedure in which
cells are chemically fixed and infiltrated with cryoprotectant before they are frozen by being plunged into liquid nitrogen.
Full article >>>Meiosis: the process of
cell division in which a single
cell produces four
daughter cells each of which contains half of the number of
chromosomes of the parent
cell.
Full article >>>[L.
neuralis - nerve]. A group of
cells found at the edges of the
neural plate and lying above the
neural tube after its formation. They migrate throughout the
embryo to form ganglia,
pigment cells, parts of gill arches, etc.
Full article >>>Eukaryote. An
organism whose
cells possess a
nucleus and other membrane-bound
vesicles, including all members of the
protist,
fungi,
plant and
animal kingdoms; and excluding
viruses,
bacteria, and
blue-green algae. See
Prokaryote.
Full article >>>Eukaryote organisms whose
cells have a true
nucleus (eu = good well true; karyon = nut kernel
nucleus)
Euryhaline having a wide range of salt concentration tolerance
(eury = broad wide; halin hali halo = salt the sea) ...
Full article >>>Definition: Radial microtubule arrays in
animal cells which are located around each pair of
centrioles.
From Regina Bailey,
Your Guide to Biology.
FREE Newsletter. Sign Up Now! ...
Full article >>>
Metabolism, Metabolic: Chemical changes that occur in living cells to provide energy for vital activities and to assimilate new material.
Metamorphosis: A change in body form during development of an insect.
Microbial: A microscopic organism; a germ.
Full article >>>
meristem. The collection of cells at the growing point of a plant that are capable of cell division.
metamorphosis. The change in form that takes place as insects grow from immatures to adults.
Full article >>>
1958. Follicular dendritic cells
Number of views: 114
1959. Follicular predominantly small cleaved cell lympho ...
Full article >>>
Diatom. Dominant planktonic algal form with siliceous test, occurring as a single cell or as a chain of cells
Diffusion. The net movement of units of a substance from areas of higher concentration to areas of lower concentration of that substance ...
Full article >>>
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