Lipid-soluble hormones pass through the cell membrane and directly interact with the cell's DNA, while water-soluble hormones bind to surface receptors, triggering intracellular signaling pathways.
In the field of Biology, the principal difference between lipid-soluble and water-soluble hormones lies in their mechanism of action. Lipid-soluble hormones, like steroid hormones, can easily pass through the cell membrane and interact directly with the cell's DNA to influence gene transcription. On the other hand, water-soluble hormones cannot cross the cell membrane due to their polarity. Instead, these hormones (such as peptides and amines) bind to receptors located on the cell's surface, triggering a series of intracellular events or signaling pathways that lead to a cellular response.In contrast, water-soluble hormones cannot passively cross the cell membrane due to their hydrophilic nature. They bind to specific receptors on the cell surface, triggering a cascade of intracellular signaling events through secondary messengers, such as cAMP or calcium ions. These signaling pathways ultimately result in the desired cellular response.
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Answer:
its caused by the convection of air masses with differences in densities mainly due to their differences in temperatures.
-Hops
- Use 6.022x1023 for avogadro’s number
- Ignore sig figs and do not round the final answer.
- Keep it to 1 decimal place.
Answer:
a) 13.2 moles
b) 79.33 grams of
Explanation:
First, we'll need to balance the equation
→
There are 2 (O) on the left and only one on the right, so we'll add a 2 coefficient to the right.
→
Now there are 4 (H) on the right and only 2 on the left, so we'll add a 2 coefficient to the () on the left.
→
The equation is now balanced.
a) This can be solved with a simple mole ratio.
4.6 moles ×
= 13.2 moles
b) This problem is solved the same way!
2.2 moles ×
= 2.2 moles
However, this problem wants the mass of , not the moles.
The molecular weight of is the weight of 4 (H) molecules and 2 (O) molecules (found on the periodic table). So,
4(1.008) + 2(15.999) = 36.03 g/mol
2.2 moles ×
= 79.33 grams of
The given question is incomplete. But the complete question is this:
A mixture of and
is passed over a nickel catalyst at 1000 K. The emerging gas is collected in a 5.00-L flask and is found to contain 8.62 g of CO, 2.60 g of
, 43.0 g of
, and 48.4 g of
. Assuming that equilibrium has been reached, calculate
for the reaction.
Explanation:
As the given reaction is as follows.
And, we know that
No. of moles =
Therefore, calculate the moles as follows.
Moles of =
= 2.6808 mol
Moles of =
= 2.6866 mol
Moles of CO =
= 0.307747 mol
Moles of =
= 1.2897 mol
As, we know that
Concentration =
Given volume = 5 L
Hence, calculate the concentration of given species as follows.
Conc. of
= 0.5361
Conc. of
= 0.5373
Conc. of CO =
= 0.06155
and, Conc. of
= 0.2579
Now, expression for equilibrium constant for the given reaction is as follows.
Now, putting the given values into the above formula as follows.
Also, we know that
Consider the equation
Calculate change in moles of gas as follows.
change in gas moles (dn) = 1 + 3 - 1 - 1
dn = 2
As,
It is given that,
T = 1000 K, R = 0.0821
So,
= 24.70
Thus, we can conclude that value of for the reaction is 24.70.