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Why are lipophilic viruses easier to kill?
Lipophilic viruses require the lipid (fatty) envelope to remain active ("live"*), and the fatty layer can be destroyed by alcohol. Non-lipophilic viruses do not require this fatty envelope, and the protein layer (capsid) is more resistant to alcohol. *Note: viruses are not actually alive, they are only genetic codes with 1 or 2 (lipophilic) protective layers. Biologists call "live" viruses *active* and "dead" viruses *inactive* or *inactivated*.
How does thyroxine pass through the plasma membranes?
diffusion. it is lipophilic and is able to pass through the PM. thyroxine is not water soluble and is the reason why it requires a carrier protein (albumin) for circulation.
Why is Xenon lipophilic?
Yes. Xenon is lipophilic and exhibits affinity for cavities in macromolecular interiors. Xenon's lipophilic behavior has been shown from its partition with long-chain hydrocarbons and from its in vitro and in vivo partition with fatty tissue.
What secretes glucocorticoids and mineralocoricoids?
Some of the steroid hormones are produced by the adrenal cortex. Steroid hormones are soluble in lipids. Steroid hormones travel in the blood attached to the carrier proteins.
Thyroid hormone is the only major lipophilic hormone that is not synthesized from cholesterol?
Thyroid hormone is actually synthesized from the amino acid tyrosine. It is produced in the thyroid gland by the addition of iodine to tyrosine molecules, and then combined to form the hormones T3 (triiodothyronine) and T4 (thyroxine). These hormones are released into the bloodstream and can act on target cells throughout the body.
What hormones can enter the target cell and bind to receptors in the nucleus?
steriod hormones - since they are lipophilic and fusses with the membrane to enter teh cell.
Is a steroid hydrophobic or hydrophilic or amphipathic?
Yes. However, more to the point is that steroid hormones are lipophilic.
Why are lipophilic viruses easier to kill?
Lipophilic viruses require the lipid (fatty) envelope to remain active ("live"*), and the fatty layer can be destroyed by alcohol. Non-lipophilic viruses do not require this fatty envelope, and the protein layer (capsid) is more resistant to alcohol. *Note: viruses are not actually alive, they are only genetic codes with 1 or 2 (lipophilic) protective layers. Biologists call "live" viruses *active* and "dead" viruses *inactive* or *inactivated*.
What hormone can enter the target cell and bind to receptors in the nucleus?
steriod hormones - since they are lipophilic and fusses with the membrane to enter teh cell.
Are hormones the carrier of inherited information?
No, DNA is
What is lipophilic?
Lipophilic is a substance that dissolves in or mix consistently with lipids.
Is an ionized drug more lipophilic or less lipophilic?
An unionized drug tends to be lipophilic (and hence, would be hydrophobic). Thus, an ionized drug on the other hand would be lipophobic (i.e. the opposite of lipophilic), lipid-hating.
How does thyroxine pass through the plasma membranes?
diffusion. it is lipophilic and is able to pass through the PM. thyroxine is not water soluble and is the reason why it requires a carrier protein (albumin) for circulation.
What is the nature of solute?
the nature of interaction depends on whether they are lipophilic or hydrophilic. if both are hydorphilic ionic interaction, both lipophilic hydrogen bonding. ionic if lipophilic-hydrophilic.
What process changes the shape of transport proteins when a particle binds with it?
Carrier Proteins. Some don't require ATP (Facillitated transport) and some do require ATP (Active transport) to change shape.
Steroid hormones enter the bloodstream by diffusion and?
Steroid Hormones only enter the bloodstream by diffusion. If you are a student taking anatomy/phyiso 2 and refering to this question: All steroid hormones are derived from (cholesterol). Which steroid hormone is produced is determined by the (enzymes) present in the cell. The common precursor molecule for all steroid hormones is (pregnenolone). Steroid hormones enter the blood stream by (diffusion) and (do) require a carrier. The rate of secretion of steroid hormones is (slower) then catecholemines because steroid hormones are not (stored). Hope that helps-
What is the nature of solute-solvent interaction?
the nature of interaction depends on whether they are lipophilic or hydrophilic. if both are hydorphilic ionic interaction, both lipophilic hydrogen bonding. ionic if lipophilic-hydrophilic.
