Biology Quiz

What is the function of the image

• heredity

• plant cell wall structure

• quick energy

• long term storage

Glycogen is a

• polysaccharide

• monomer

• protein

Hydrogen peroxide -> water + oxygen

Think I start with one substrate and finish with two products.

Which of the following diagrams best represents the enzyme-substrate complex formation over time?

• Diagram a.

• Diagram b.

• Diagram c.

• Diagram d.

Tags

NGSS.HS-PS1-5

How should the pancreas be stored.

• The pancreas should be stored at 65°C or greater in order to ensure that all pancreatic proteins are denatured during the transport.

• The pancreas should be stored at 50°C in order to ensure optimal enzymatic activity during transport.

• The pancreas should be stored around 40°C since that is normal human body temperature.

• The pancreas should be stored around 20°C in order to slow down the enzyme activity and prevent further decay.

Tags

NGSS.HS-PS1-5

During an experiment, the amount of substrate is gradually increased while the amount of enzyme is kept the same. Which of the following graphs would best illustrate the results?

• A

• B

• C

• D

Which of the following would best help the researcher determine how well the enzyme is working?

• The researcher should measure the amount of product at the end of the reaction.

• The researcher should measure the amount of enzyme remaining after the reaction.

• The researcher should measure the temperature during the reaction.

• The researcher should measure the amount of substrate at the beginning of the reaction.

Which of the following could cause denaturation of an enzyme?

• Substrate concentration

• A competitive inhibitor

• High temperature

• Low salt concentration

What determines the specificity of an enzyme for its substrate?

• The temperature at which it is operating

• The optimum pH of the enzymes

• The concentration of the substrate

• The structure of the enzyme molecule

What is an active site?

• The part of an enzyme that binds only to the product molecules.

• The sequence of amino acids responsible for the catalytic activity of enzymes.

• The sequence of amino acids responsible for the structure of an enzyme.

• The specific area responsible for the activity of all proteins.

Tags

NGSS.HS-LS1-1

Which of the following arguments provides the BEST explanation of the interaction between an enzyme and its substrate?

• The enzyme has a specific structure that a variety of substrates can bind to.

• The enzymes has a chemical makeup that only one type of substrate is attracted to.

• The enzyme has a specific chemical makeup that pushes away its substrate.

• The enzyme has a specific structure so that only one type of substrate can bind to it.