Chemicals of Life

A function of a lipid (fat) is________________.

• Short term energy

• Energy storage

• Structures and enzymes

• Hereditary information

__________________ may be fats, oils, or waxes. 

• Lipids
• Carbohydrates
• Proteins
• Nucleic Acids 

This molecule is found in cell membranes forming a bilayer

• Protein
• Phospolipid
• Carbohydrate 
• Nucleic acid 

Organic molecules are from living things and always contain the _____________ atom.

• Iron
• Carbon
• Potassium
• Nitrogen 

Tags

NGSS.HS-LS1-6

Of the elements essential to life, _____________________ is a central element in a living organisms organic compounds. 

• Carbon
• Oxygen
• Nitrogen
• Hydrogen

Tags

NGSS.HS-LS1-6

Water is the most abundant molecule found in living organisms.  Most mammals, in fact are approximately 70% water by weight.  About two-thirds of this water is present inside cells.  The other one-third is present outside cells (e.g., in blood plasma or other body fluids).  Why is water so important to cells?

• Water is stored in the cells to be used when the organism gets thirsty.
• Almost all the chemical reactions in life processes occur in solutions with water.
• Water determines which proteins are translated from the cellular DNA.
• The main structural component found in plasma membranes and cell walls is water.

Tags

NGSS.HS-LS1-3

a sugar or starch, which organisms use for energy

• carbohydrate
• fat
• protein
• DNA

a water-insoluble chemical that stores large amounts of energy

• fat
• mineral
• protein
• carbohydrate

smaller molecules that link together to form proteins

• amino acid
• lipid
• enzyme
• nucleic acid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

formed when two or more elements combine chemically

• compound
• element
• atom
• isotope

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5