30 results found

Search Results for: negative pressure

Turgor pressure

In biology, turgor pressure definition pertains to the pressure that is exerted by the fluid (e.g. water) against the cell... Read More

Negative pressure

negative pressure pressure less than that of the ambient... Read More

Homeostasis

Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More

Positive feedback

Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More

Cell wall

The cell is the structural, functional, and biological unit of all organisms. It is a membrane-bound structure containing... Read More

Eubacteria

Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single... 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

Negative feedback

Definition noun (1) A feedback in which the system responds to the perturbation in the opposite direction as the... Read More

Stimulus

We can detect hot or cold environments using our sense of temperature. When the temperature is too hot, sweating... Read More

Barophile

Definition noun, plural: barophiles An organism that grows in high-pressure environments Supplement A barophile is an... Read More

Water

Water Definition (1) (biochemistry) A chemical substance, with chemical formula H2O, that is a clear, colorless, odorless,... Read More

Aspirate

Aspirate (Science: procedure) The material that is withdrawn with a negative pressure apparatus... Read More

Middle lamella

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

Secondary cell wall

Definition noun plural: secondary cell walls ˈsɛkənˌdɛɹi sɛl wɔːl The layer of the plant cell wall that forms... Read More

Work

work (Science: chemistry) energy transferred by mechanical means, force acting over a distance. For chemical systems the... 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

Oxygen

Oxygen Definition In biochemistry, oxygen is the colorless, odorless, gaseous element represented by the symbol "O", with... Read More

Protist

Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with the nucleus. However, they are... Read More

Concentration gradient

Concentration gradient definition Concentration gradient refers to the gradual change in the concentration of solutes in a... Read More

Hydrophobic

The fear of mixing or reacting with water under a given set of reaction parameters is often referred to as hydrophobic. In... Read More

Murein

Definition noun A crystal lattice structure in the cell wall of eubacteria formed by the linear chains of two alternating... Read More

Gen-e-sis: The Scientific Quest for Life’s Origins

Gen-e-sis: The Scientific Quest for Life's Origins    ... Read More

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More

Peptidoglycan

Definition noun, plural: peptidoglycans (1) A glycan (a polysaccharide) attached to short cross-linked oligopeptides in the... Read More