What two things make up a human being?

What two things make up a human being?

Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus….Elemental composition list.

What is the whole human body made of?

The human body is approximately 99% comprised of just six elements: Oxygen, hydrogen, nitrogen, carbon, calcium, and phosphorus. Another five elements make up about 0.85% of the remaining mass: sulfur, potassium, sodium, chlorine, and magnesium.

What makes up 90% of the human body?

Almost 99% of the human body mass consists of six main elements; namely: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphor; 65–90% of each cell in the body is composed of water, as such, oxygen and hydrogen are among the main constituents of the human body.

What are the 2 most important body parts?

While your heart is a vital organ, the brain (and the nervous system that attaches to the brain) make up the most critical organ system in the human body. The human nervous system is responsible for coordinating every movement and action your body makes.

How human body is formed?

The human body is organized at different levels, starting with the cell. Cells are organized into tissues, and tissues form organs. Organs are organized into organ systems such as the skeletal and muscular systems.

What three elements make up most of the body?

The most abundant elements in the human body are oxygen, carbon and hydrogen.

What elements make up the human body percentages?

Chemists and other researchers have been uncovering their roles in a range of important biological processes. By mass, about 96 percent of our bodies are made of four key elements: oxygen (65 percent), carbon (18.5 percent), hydrogen (9.5 percent) and nitrogen (3.3 percent).

What is the most important part of the human body?

The brain
Anatomy & Function The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings—all the things that make us human.

What are the main parts of the body?

The three main parts of the body are: the head, the trunk and the limbs (extremities). The head is composed of the cranial and facial parts. It contains the brain, the centre of the nervous system.

What are the four most common elements found in the human body?

Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.

What is a substance that makes up most of the human body?

Most of the human body is made up of water , H 2 O, with bone cells being comprised of 31% water and the lungs 83%. 1  Therefore, it isn’t surprising that most of a human body’s mass is oxygen.

What is the most common element in the human body?

In the human body, the most common element by weight is oxygen, followed by carbon and hydrogen, according to HyperPhysics. Hydrogen has a number of key roles in the human body. Hydrogen bonds help give DNA its signature twist, and it helps the stomach and other organs maintain the correct pH, or how acidic or basic it is, Nyman said.

What are the basic elements of the human body?

Therefore, it isn’t surprising that most of a human body’s mass is oxygen. Carbon, the basic unit for organic molecules, comes in second. 99% of the mass of the human body is made up of just six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.