Proteins and Enzymes

The building blocks of proteins are

• nucleotides

• monosaccharides

• lipids

• amino acids

Tags

NGSS.HS-LS1-6

A catalyst is a chemical that

• blocks a chemical reaction from occurring

• slows down a chemical reaction

• speeds up the rate of a chemical reaction

• has no effect on a chemical reaction

Tags

NGSS.HS-PS1-5

An example of a catalyst is a(an)

• hormone

• monosaccharide

• enzyme

• lipid

A denatured protein is one...

(Check all that apply)

• whose shape has changed due to the effects of temperature or pH

• which is broken down into its building blocks

• which may no longer function

• which is combined with other proteins to make a peptide

The active site of an enzyme is the region that...

(Check all that apply)

• changes after the chemical reaction is completed

• can bind to any substrate

• binds to a specific substrate

• may change due to denaturing

Object C in this image is know as the

• enzyme

• substrate

• enzyme-substrate complex

• product

One enzyme molecule can catalyze many substrate molecules because

• more enzyme molecules are created during the reaction

• the enzyme molecule is not used up during the reaction

• the enzyme breaks apart and then reforms after the reaction

• none of the above

Catalase helps break down hydrogen peroxide (H2O2) into water and oxygen. What is the substrate in this reaction?

• catalase

• hydrogen peroxide

• water

• oxygen

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Click on the true statement about this reaction.

• "A" represents the products, "C" is the enzyme and "E" is the substrate.

• "A" represents the substrate, "C" is the enzyme and "E" are the products.

• "A" represents the substrate, "C" is the enzyme-substrate complex, and "E" are the products.

• "B" represents the substrate, "A" represents the enzyme and "D" is the product.

Tags

NGSS.HS-PS1-2

LCT is the gene that codes for

• making the sugar lactose

• making all digestive enzymes

• making the enzyme lactase

• the control of lactase production