Chemistry of Life

What is the smallest unit of matter that cannot be broken down by chemical means?

• Atom
• Element
• Ion
• Isotope

What are the four elements that all life is made up of?

• Hydrogen, Oxygen, Nitrogen and Carbon
• Helium, Oxygen, Neon and Carbon
• Hydrogen, Titanium, Carbon, Nitrogen
• Oxygen, Chlorine, Iron, Nitrogen

Tags

NGSS.HS-LS1-6

Examples of these biomolecules are DNA and RNA...

• Nucleic Acids
• Carbohydrates
• Lipids
• Proteins

Tags

NGSS.MS-LS3-1

Zane is making a chart of compounds that are found in the human body. What is the most common compound found in the human body?

• H2O   
• CO2
• Sodium Bicarbonate (baking soda)
• NaCl (table Salt)

Tags

NGSS.MS-PS1-1

Carbohydrates are made up of three of the six major molecules found in living things. The general chemical formula for a carbohydrate is CH₂O. Which elements combine to make a carbohydrate?

• copper and cobalt
• chlorine and oxygen
• carbon, helium, and oxygen
• carbon, hydrogen, and oxygen

Tags

NGSS.MS-PS1-1

What are the four main types of molecules found in the cells of living things?

• carbohydrates, lipids, nucleic acids, and proteins
• lipids, nutrients, nucleic acids, and carbon dioxide
• carbon dioxide, hydrogen, oxygen, and various salts
• atoms, molecules, chemical compounds, and carbohydrates

What type of molecule provides immediate energy in cells?  

• lipids
• proteins
• carbohydrates
• nucleic acids

Tags

NGSS.MS-LS1-7

The cells in living things contain four main molecules that allow the cells to function. Which of these molecules cannot mix with water?

• lipids
• proteins
• nucleic acids
• carbohydrates

Tags

NGSS.MS-PS1-1

Animal cells have four main molecules that keep the body healthy. What type of molecule in animal cells provides a “map” for making proteins?

• lipids 
• proteins
• nucleic acids
• carbohydrates

Tags

NGSS.MS-LS3-1

Which of these statements best describes a molecule?

• All molecules must contain carbon and oxygen.
• All molecules must have two different elements.
• All molecules are made up of two or more atoms
• All molecules must have at least three different atoms.

Tags

NGSS.MS-PS1-1