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3 years ago

Is your prediction supported by the membrane potential chart?

Biology

1 answer:

NNADVOKAT [17]3 years ago

6 0

Answer:

The membrane potential of a resting neuron is primarily determined by the movement of K+start text, K, end text, start superscript, plus, end superscript ions across the membrane. ... Zero voltage across the membrane, as measured by a voltmeter with one electrode inside and one electrode outside the cell.

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An animal has a diploid chromosome number of 60. Suppose that the first meiotic division of a germ cell is normal, but a single

ella [17]

Answer:

Two gametes end up with 30 chromosomes, one gamete will have 31 and one will have 29.

Explanation:

During meiosis, a single diploid cell divides into four haploid cells with half the chromosome number than the parent cell.

During meiosis I, homologous chromosomes separate and the chromosome number in the two daughter cells goes down by half. During meiosis II, the "sister" chromatids separate, and the chromosome number in the respective daughter cells remains the same.

Non-disjunction of a single dyad in meiosis II causes that one of the daughter cells will have an extra chromosome, and another will be lacking one. The two other gametes will be normal.

I drew a simple example of what would happen during meiosis of a 2n=4 cell if there was non-disjunction in a single dyad during meiosis II.

5 0

3 years ago

What is the ratio of H to O atoms in all carbohydrates and water?

slavikrds [6]

(sucrose) H22 : O11 = 2 : 1

4 0

4 years ago

The most common danger related to the destruction of CD4 T cells is

miss Akunina [59]

Answer:

AIDS

Explanation:

AIDS is the most common infectious disease causing lymphocytopenia, which arises from destruction of CD4+ T cells infected with HIV.

4 0

3 years ago

In a population of 1000 individuals, 500 new individuals were born and 200 individuals died over the course of 1 year. Which equ

blagie [28]

(Initial individuals + newborn individuals) - dead individuals = total individuals

Growth rate = (total individuals/initial individuals) * 100

Population growth rate = new percentage minus 100%

Calculations

(1000 + 500) - 200 = 1500 - 200 = 1300

Growth rate = (1300/ 1000) * 100

= 1.3 * 100

= 130%

Population growth rate = 130% - 100%

= 30% per year if it is uniform

3 0

3 years ago

Read 2 more answers

When your cells use fat for energy, the fatty acids are broken up into molecules of acetyl COA. Predict how many ATP can be made

IgorC [24]

Answer:

12 molecules of ATP can be made from one molecule of acetyl CoA.

Explanation:

If one molecule of acetyl CoA enter TCA cycle then it result in the formation of 3 molecules of NADH,1 molecule of FADH2 and 1 molecule of GTP that is equivalent to 1 molecule of ATP.

Now the reducing equivalent such as NADH and FADH2 enters electron transport chain and get oxidized to regenerate NAD+ and FAD along with ATP. 1 molecule of NADH produces 3 molecules of ATP whereas 1 molecule of FADH2 produces 2 molecules of ATP.

So that net gain of ATP is given below

3 molecules of NADH = 9 molecules of ATP

1 molecule of FADH2 =2 molecules of ATP

1 molecule of GTP = 1 molecule of ATP

As a result total 12 molecules of ATP is by the oxidation of 1 Acetyl CoA by TCA cycle .

7 0

3 years ago