Biology EOC Review Chapter 2 Chemistry of Life

This graph shows the activity at different pH. What can you conclude from these data?

• amylase breaks down in neutral pH environments.
• amylase functions best around pH 7.
• amylase functions best around pH 2.
• amylase is not affected by pH

Proteins are long molecules that are built from various combinations of...

• carbohydrates
• nucleic acids
• lipids
• amino acids

Tags

NGSS.HS-LS1-1

The diagram shows how an enzyme binds to a substrate during a chemical reaction. When the reaction is complete, the....

• enzyme's shape will be different
• surrounding temperature will have increased
• hydrogen ion concentration will have decreased
• substrate will be a different molecule

Tags

NGSS.HS-PS1-2

An animal's stomach contains enzymes that break down food into smaller molecules that the animal's cells can use. Enzymes perform this function by...

• speeding up the chemical reactions
• increasing the temperature
• changing the ionic concentration
• lowering the pH

The primary function of DNA is to...

• provide energy for a cell
• transmit messages between cells
• translate the codes in RNA
• store information for building proteins

Tags

NGSS.HS-LS1-1

Which phrase best descries a polymer?

• individual parts of a large molecule
• information coded in RNA
• molecule made of many small molecules
• individual amino acids