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Standard XII

Biology

Active Transport

Premature del...

Question

Premature delivery in women is due to:

increase in concentration of

S O_{2}

in blood

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increase in concentration of

C O

in blood

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increase in concentration of

N O

in blood

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decrease in concentration of

S O_{2}

in blood

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Solution

The correct option is D increase in concentration of $C O$ in blood
The poisoning of carbon dioxide in pregnant women causing fetal death or fetal brain damage. This is thought to be from a large amount of carbon monoxide in the mother's blood. This cause the baby to receive less oxygen. So, it causes premature delivery.

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Similar questions

Q. Increased

S O_{2}

concentration in the air causes

Q. To find out the concentration of

S O_{2}

in the air (in parts per million, i.e., ppm), the data was collected for 30 localities in a certain city and is presented below:

Concentration of $S O_{2}$ (in ppm)	Frequency
0.00-0.04	4
0.04-0.08	9
0.08-0.12	9
0.12-0.16	2
0.16-0.20	4
0.20-0.24	2

Find the mean concentration of

S O_{2}

in the air.

Given below is the concentration of SO₂ in air (in ppm = parts per million) in 30 localities:
$\begin{matrix} S O_{2} concentration (in ppm) & Number of localities 0.00 - 0.04 & 4 0.04 - 0.08 & 9 0.08 - 0.12 & 9 0.12 - 0.16 & 2 0.16 - 0.20 & 4 0.20 - 0.24 & 2 \end{matrix}$
Find the mean of $S O_{2}$ concentration using assumed - mean method.

Q. Given below is the concentration of SO₂ in air(in ppm = parts per million) in 30 localities:

\begin{matrix} S O_{2} concentration (in ppm) & Number of localities 0.00 - 0.04 & 4 0.04 - 0.08 & 9 0.08 - 0.12 & 9 0.12 - 0.16 & 2 0.16 - 0.20 & 4 0.20 - 0.24 & 2 \end{matrix}

Find the mean of

S O_{2}

concentration using assumed - mean method.

Q. To find the concentration of

S O_{2}

in the air (in parts, per
million), the data was collected for 30 localities, in a certain city
and is presented below:

Concentration of $S O_{2}$ (in ppm)	Frequency
0.00-0.04	4
0.04-0.08	9
0.08-0.12	9
0.12-0.16	2
0.16-0.20	4
0.20-0.24	2

Find the mean concentrations of

S O_{2}

in the air.

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