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Molecular Biology
Molecular biology is the study of how molecules (biomolecules such as protein, DNA) communicate in the cell and how the field helps to study them in a external condition.
267 Questions
All major branches of science?
Geology Volcanolgy Seismology Paleontology OCeanography Physical Oceanography Biological Oceanography Geological Oceanography Chemical Oceanography Meterology Astronomy Enviromental Science Ecology Geochemistry Cartography
What does the lipid bilayer molecules do?
The lipid bilayer that forms the cellular membrane forms an effective semi-permeable membrane. The lipid bilayer typically can typically exclude larger molecules based on size (molecular weight) and other molecules based on charge (ions and salts).
An antitemplate is a macromolecule in molecular biology which acts against a template.
Is NOCl ionic or molecular compound?
NOCl is a molecular compound because it is composed of nonmetals (nitrogen, oxygen, and chlorine) and forms covalent bonds.
What determines how much energy is available in a molecule?
This is related to the Gibbs free energy: G = H —TS (where, H is the enthalpy, T is the absolute temperature, and S is the entropy), that is the required indicator of spontaneity for constant temperature and pressure processes. For systems that can only do pressure - volume work (w' = 0), Gibbs free energy equation can be expressed as: DG = DH — TDS = qp — TDS (where, qp is the heat transferred at constant pressure). Now, a spontaneous process is that one with negative DG value and is said to be "exergonic" and it can be utilized to do work. A process that is not spontaneous, that one with positive DG value is called "endergonic" and it must be driven by the input of free energy. Those processes that are at equilibrium (when the forward and the backward reactions are exactly balanced) are characterized by a DG = 0. From above considerations, the endergonic processes that maintain the living state are driven by the exergonic reactions of nutrient oxidation. Living organisms are not at equilibrium. Rather, they require a continuous influx of free energy to maintain order in a universe bent of maximizing disorder. They do so by coupling the exergonic processes required to maintain the living state such as the performance of mechanical work, the active transport of molecules against concentration gradients, and the biosynthesis of complex molecules. The key is to know "how much free energy carry a particular molecule" in order to carry out a work. This can be achieved measuring the "free energy" of a given intermediate molecule whose exergonic consumption drives endergonic processes. In other words, to determine how much "energy" carries a particular molecule, we have to measure its DG value.
Where would one use SYBR Green I dye?
SYBR Green I dye is used in molecular biology. The dye binds to DNA. The dye is safe to use and will show up in DNA for labelling. Similar dyes are SYBR Green II and and SYBR Gold.
Molecular weathering refers to the breakdown of rock and mineral structures at the molecular level due to chemical reactions, such as oxidation or hydration. This process can weaken rocks and minerals, leading to their eventual physical breakdown through mechanical weathering processes.
Do the water molecules collide with food coloring molecules?
Yes, water molecules do collide with food coloring molecules. When food coloring is added to water, the water molecules move and interact with the coloring molecules, leading to diffusion. This process allows the food coloring to spread throughout the water as the molecules intermingle. The collisions between water and food coloring molecules facilitate the mixing and even distribution of color in the liquid.
Is both DNA and RNA involved in the central dogma of biology?
Yes. The central dogma of biology postulates: DNA < > RNA > Proteins
What has the author Donald Francis Hoelzl Wallach written?
Donald Francis Hoelzl Wallach has written:
'The plasma membrane: dynamic perspectives, genetics and pathology' -- subject(s): Cell membranes
'Membrane molecular biology of neoplastic cells' -- subject(s): Cancer cells, Cell membranes
What is the start codon for each?
ATG is the prominent start codon for most of the Eukaryotic proteins, other start codons such as CTG also exist in other species.
What is agglutination in biology?
agglutination is when B-lymphocytes, more specifically plasma B-cells, link antigens together using the binding sites on the antigens. This prepares the antigens for phagocytosis or perforation from a killer T-cell
