The amount of which of the following elements | vedclass

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(B) In the protoplasm of a living cell, water $(H_2O)$ is the most abundant constituent, accounting for approximately $70-90\%$ of the total weight. S

Vedclass · Accepted Answer

Oxygen

Vedclass · Answer

(B) In the protoplasm of a living cell, water $(H_2O)$ is the most abundant constituent, accounting for approximately $70-90\%$ of the total weight. Since water consists of hydrogen and oxygen, and oxygen atoms are significantly heavier than hydrogen atoms, oxygen constitutes the highest percentage by mass among all elements in the protoplasm. Therefore, oxygen is the most abundant element by mass.

Components	$\%$ of the total cellular mass
$A$. Water	$1. 10-15$
$B$. Proteins	$2. 70-90$
$C$. Carbohydrates	$3. 5-7$
$D$. Lipids	$4. 3$
$E$. Nucleic acids	$5. 2$
$F$. Ions	$6. 1$

The amount of which of the following elements is greatest in protoplasm?

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