Molecules of Life

The type of polysaccharide which serves as a strengthening tissue in the cell wall of plants is 

• cellulose
• glucose
• lactose
• fructose

Carbohydrates are made of... 

• C H O
• C H O N
• C H O N P
• C H O N S

Glucose is a _____.

• carbohydrate
• lipid
• protein 
• nucleic acid

Proteins are composed of what smaller building blocks?

• amino acids
• nucleic acids
• fatty acids
• nucleotides

Tags

NGSS.HS-LS1-1

Also known as simple sugars, these are the monomers of carbohydrates.

• lipids
• nucleotide
• monosaccharide
• monomer

Building blocks of polymers.

• monomer
• polypeptide
• monosaccharide
• glycerol

Water is classified as an inorganic compound because it

• does not contain carbon
• does not contain nitrogen
• contains hydrogen
• contains oxygen

Tags

NGSS.HS-ESS2-5

Which statement describes all enzymes?

• They control the transport of materials.
• They provide energy for chemical reactions.
• They affect the rate of chemical reactions.
• They absorb oxygen from the environment.

Tags

NGSS.HS-PS1-2

In the reaction illustrated in the diagram below, which structure represents the enzyme?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-2

In which type of molecule is the ratio of hydrogen to oxygen usually 2 to 1?

• lipid
• protein
• carbohydrate
• glycerol