Answer: A loss of the ion concentration gradient that drives this process.
Explanation:Ouabain known as g-strophanthin, is a cardiac glycoside that can be medically used to treat hypotension.It acts by nhibiting the sodium - potassium (Na/K-ATPase) by causing a loss of the ion concentration gradient that drives it's process. Originally, it was a toxic plant that was used as an arrow poison in eastern Africa for hunting and warfare. Recently, Ouabain is synthesized by animals and secreted from the adrenal cortex to regulate body osmosis.
Explanation:
Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. In nature, crystals can form when liquid rock, called magma, cools.
Scientists use curiosity, imagination, and previous scientific study to
create research questions and hypotheses to begin their investigations
into natural phenomenon. They use this process which formally is called
the scientific method to carefully construct experiments to guide
investigations of the world around them. Hope this helps!!
Answer:
A4
B1
C3
D2
Explanation:
A4: dispersion forces occur in everything as it is variations in the electron cloud. They are very weak and are the only intermolecular force in a non-polar molecule such as CH4.
B1: Dipole Dipole forces occur between polar molecules. The polarity of the molecule creates a dipole which can attract each other. they are stronger then dispersion forces. CBr2Cl2 is a polar molecule.
C3: hydrogen bonding is a special type of dipole-dipole force and are pretty strong. They can only occur between H-N, H-O, and H-F bonds. NH3 has N-H bonds.
D2: ion dipole forces occur between a polar molecule and ions. They mainly occur when charged species (ions) are in a polar solvent but there are likely less common examples.
I hope this helps. Let me know if anything is unclear.
