Question

If hydrogen and helium are the most abundant elements in the unoverse , then why are living organisms composed primarily of carbon,oxygen,nitrogen and also hydrogen?

Answer 1

Living organisms are primarily composed of carbon, oxygen, nitrogen, and hydrogen because these elements are necessary for the formation of macromolecules and play key roles in biological processes.

Step-by-step explanation:

The most abundant elements in the universe are hydrogen (H) and helium (He). However, living organisms are primarily composed of carbon (C), oxygen (O), nitrogen (N), and hydrogen (H). This is because these elements are necessary for the formation of macromolecules such as nucleic acids, proteins, carbohydrates, and lipids which are the building blocks of life.

For example, carbon forms the backbone of organic molecules and can form long chains and rings, allowing for the diversity of structures and functions in living organisms. Oxygen is essential for respiration and plays a role in energy production. Nitrogen is a key component of proteins and nucleic acids, including DNA and RNA. And hydrogen is involved in many biological processes, including the formation of water and the transfer of energy.

Although hydrogen is the most abundant element in the universe, it is not as abundant in living organisms as carbon, oxygen, and nitrogen. This is because hydrogen is highly reactive and tends to be bound to other elements, such as oxygen in water or carbon in organic compounds. Therefore, while hydrogen is essential for life, it is not as prevalent in living organisms compared to carbon, oxygen, and nitrogen.

Answer 2

Most of materia isnt life.

Step-by-step explanation:

The living organisms (life) aren't the most abundant thing in universe.

Hydrogen and helium are present in everywhere, but life isn't.

There is no reason to think because we have a lot of a thing, the life must be made for this thing.

The organic life just can exists because some mysterious properties about carbon, that is the basic foundation of life, carbon is a special element, why? We don't know, actually, it's a huge problem for science discover why the carbon can makes life be possible and other elements can't. But we know is this element that makes life possible.

So, note there isn't relation about the quantity of a material in Universe and the life constituition. In addition, look around, organic materials are very rare in Universe, Earth is one in lots of places and in most of this places there isn't sign of life.

Even in Earth the life looks abundant, in Universe it isn't, the same way in Universe the Hydrogen and Helium are abudant, in Earth isn't soo.