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Julli [10]
3 years ago
10

HELP 30 PTS

Biology
2 answers:
Tpy6a [65]3 years ago
8 0

Answer:

B. Anions have more electrons than protons, giving them a negative charge.  

and

D. Cations have more protons than electrons, giving them a positive charge.

Explanation:

Anions have negative charge because electrons give negative charges. On the other hand, cations have positive charges because protons have a positive charge and they have more protons.

loris [4]3 years ago
4 0

B. Anions have more electrons than protons, giving them a negative charge.  

D. Cations have more protons than electrons, giving them a positive charge.

Explanation - Ions are the result of atoms or molecules that lose or gain electrons. If an atom or a molecule is positively charged then it is called as cation and if it has negative charge then it is called as anion.

Cations have positive charge because the atom has lost its electron while anions have negative charge because the atom has gained the electron. The number of protons is more than the electron in cations and less in anions.  

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Read 2 more answers
When a singly ionized potassium ion moves through a channel in the membrane passing from the outside to the inside, what is the
Korolek [52]

The magnitude of the work done by the electric field of the membrane is <u>W = 1.28 × 10⁻²⁰ Joules</u>.

We start with the necessity to take into account a value for the voltage present there in order to solve this problem by first considering that the membranes have two layers, one internal and one external, each responsible for producing a potential difference between the two levels.

As a result, in order to find a solution, it is necessary to take into account the potential difference between the two surfaces. In this instance, we'll assume a particular value for the load, but the recipient is free to substitute a different value if they prefer.

The product of the potential difference and the charge is used to define the work that an electric field performs. The charge of the potassium ion will be equal to that of its electron, so,

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Then the Work would be:

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v = Potential difference

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The 80mV potential difference we will have is quantified as follows:

W = (80mV (1V/1000mV))( 1.6 × 10⁻¹⁹ C)

W = 1.28 × 10⁻²⁰ Joules is the amount of work that the membrane's electric field has produced.

Find more on work done at : brainly.com/question/25573309

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