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Allushta [10]
3 years ago
13

why is it important that ions being transported across a cell membrane be shielded from the interior of the lipid bilayer

Biology
1 answer:
Degger [83]3 years ago
6 0

The answer is The ions are protected inside the lipid bilayer so that it is not pushed back to a more polar environment.

The lipid bilayer is mainly composed of lipids (phospholipids and cholesterol), and is also composed of proteins such as transporters.

The ions (which are polar) can not cross directly through the lipids because they will repel them due to their apolarity. On the other hand they can easily pass through protein channels that will protect them during their passage (the proteins are more polar than lipids).

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Alinara [238K]
The CPT code that is reported for this service is 50500.
The CPT (Current Procedural Terminology) code 50500 as maintained by American Medical Association is a medical procedural code under the range of Repair Procedures on the Kidney. It is an open procedure suture of a kidney wound laceration. 
4 0
3 years ago
Is a high pressure system good?
irakobra [83]

Answer:

Yes

Explanation:

subsidence will dry out an air mass by adiabatic or compression heating.

<h2><u><em>hope this helped you</em></u></h2><h2><u><em>please mark me as brainiest</em></u></h2>
5 0
2 years ago
Question 6 (1 mark)
Andrej [43]

Answer:

option A

Explanation:

Energy gotten from the prey will be transferred up to the food chain.

so directly or indirect, all other members of the food depend on this energy

8 0
3 years ago
Day 1: 4 km Day 2: 10 km Day 3: 12 km Day 4: 12 km Day 5: 18 km Day 6: 24 km
yKpoI14uk [10]

Answer:

In order to find average speed during each interval, we need to divide the distance during those intervals with the period of time. So, for the first interval (day 0 to day 2) hawksbill started from 0 and reached 10 kilometers by the end of the second day. That means that it crossed 10 kilometers in 2 days, so the average speed is 10/2 which is 5 km/day. Similarly, we can calculate speed for other intervals:

• day 2 - day 3: it went from 10 to 12 km in one day, which means it crossed 2 km in one day, so the average speed is 2/1 = 2 km/day

• day 3 - day 4: at the end of the third day it reached 12 km and at the end of the day 4 it remained at 12 km. That means the hawksbill wasn't moving in that interval so the speed was 0

• day 4 - day 5: it went from 12 km to 18 km, which means it crossed 18-12=6 km in one day, so the average speed is 6/1=6 km/day

• day 5 - day 6: it went from 18 to 24 km, which means it crossed 24-18=6 km in one day, so the speed was 6/1=6 km/day

So, to summarize, during the first interval turtle was moving with average speed of 5 km/day, then 2 km/day, in the third interval it wasn't moving and in the last two intervals, it moved in average speed of 6 km/day.

6 0
3 years ago
In the reaction ______ H2 + N2 ----&gt; 2 NH3, what coefficient should be placed in front of H2 to balance the reaction?
schepotkina [342]

2NH3 is equivalent to N2 + H6 since the 2 at the beginning gets distributed to both atoms. Knowing this you can rewite the equation as

H2 + N2 = H6 + N2

The N2 can cancel out leaving

H2 = H6

You now have to ask ‘2 times what equals 6?’ The answer is obviously 3 at this point.


Answer: C. 3


5 0
3 years ago
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