Importance of Carbon, Hydrogen, Oxygen, and Nitrogen in Life

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What are the primary roles of carbon, hydrogen, oxygen, and nitrogen in life?

Carbon for water formation, hydrogen for energy generation, oxygen for protein building, and nitrogen for molecule stabilization

Carbon for protein building, hydrogen for molecule stabilization, oxygen for energy generation, and nitrogen for water formation

Carbon for molecule stabilization, hydrogen for water formation, oxygen for cell energy, and nitrogen for protein building (correct)

Carbon is needed for cell energy, hydrogen for protein building, oxygen for water formation, and nitrogen for molecule stabilization

How do essential elements differ from trace elements?

Essential elements are not important for cell function, while trace elements are crucial for cell stability

Essential elements are required in small amounts, while trace elements are needed in larger quantities

Essential elements are needed for growth, while trace elements are unnecessary for growth (correct)

Essential elements are found in all living beings, while trace elements are only found in certain organisms

What is the primary role of trace elements in biological systems?

Extract molecules to destabilize cell structures and cause diseases

Generate energy for cells and promote cell growth

Stabilize cell structures and lead to disease prevention (correct)

Have no significant role in biological systems

Which particles make up all atoms?

Protons, neutrons, electrons Signup and view all the answers

What is the charge of protons?

Positive Signup and view all the answers

What is the primary function of oxygen in biological systems?

Generate energy for cells Signup and view all the answers

What does an atom's atomic number represent?

The number of protons in the element Signup and view all the answers

How do isotopes of an element differ from an atom of that same element?

They have different numbers of protons Signup and view all the answers

What is the valence shell of an atom?

The farthest layer from the nucleus Signup and view all the answers

Why are some isotopes important in medicine?

To perform MRIs and PET scans Signup and view all the answers

What does the electronegativity of an element refer to?

The ability to attract electrons Signup and view all the answers

Why are the noble gases considered to be inert?

They are stable and do not react with other elements Signup and view all the answers

How do you determine how many total orbitals are found within an atom when looking at a periodic table of elements?

The first shell can hold a maximum of 2 orbitals Signup and view all the answers

What happens to the electronegativity of elements as you move from left to right across the periodic table?

It increases Signup and view all the answers

What are the two most common types of chemical bonds seen within a molecule?

Ionic and covalent bonds Signup and view all the answers

How does a covalent bond differ from an ionic bond?

A covalent bond involves sharing electrons, whereas an ionic bond involves transferring electrons. Signup and view all the answers

Importance of Carbon, Hydrogen, Oxygen, and Nitrogen in Life

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