AP Bio Unit 3 Review

The location where the enzyme and substrate bind is the...

• allosteric site

• inhibition site

• reaction site

• active site

Chemiosmosis is best described as...

• Moving high energy electrons through carrier molecules toward oxygen

• The use of a proton gradient to power ATP Synthase and produce ATP

• The breakdown of pyruvate into electron carrier molecules

• The enzyme that combines ADP and inorganic phosphate to produce ATP

Tags

NGSS.HS-LS1-7

The point of the Krebs Cycle is to...

• Produce high amounts of ATP using a proton gradient

• Move high energy electrons through series of proteins to eventually bind with O₂, creating water and protons

• Break down pyruvate to produce electron carrier molecules, FADH₂ and NADH, as well as CO₂ and ATP as byproducts

• Use ATP and NADPH to produce 6 carbon sugars

Tags

NGSS.HS-LS1-7

What effect does adding an enzyme to a reaction cause?

• increasing the time it takes for the reaction to occur

• increases the activation energy

• decreases the activation energy

• increasing the amount of energy necessary for the reaction

Tags

NGSS.HS-PS1-4

What serves as the final acceptor of the electrons moving down the ETC during cellular respiration?

• sulfur

• carbon dioxide

• ATP

• oxygen

Tags

NGSS.HS-LS1-7

Which of the following is true for anabolic reactions?

• They are spontaneous and breakdown molecules.

• They are nonspontaneous and breakdown molecules.

• They are spontaneous and build molecules.

• They are nonspontaneous and build molecules.

Succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction is inhibited by malonic acid, which resembles succinate but cannot be acted upon by succinate dehydrogenase. Increasing the ratio of succinate to malonic acid reduces the inhibitory effect of malonic acid. What is malonic acid's role with respect to succinate dehydrogenase?

• It is a competitive inhibitor.

• It is an allosteric regulator.

• It is able to bind to succinate.

• It blocks the binding of fumarate.

The place, other than the active site, where activators and inhibitors bind to an enzyme is called the ________ site.

• competitive

• allosteric

• alterior

• rate

Photosynthesis goal is to

• convert light energy into glucose energy

• use light energy to make oxygen gas

• convert sugar energy into ATP

• convert sugar energy into oxygen gas

Tags

NGSS.HS-LS1-5

Rubisco is important in which step of photosynthesis

• energizing the electrons in chlorophyll

• carbon fixation when CO2 is connected to RUBP during calvin cycle

• regeneration phase as RUBP is made during calvin cycle

• reduction of the carbon chain during the calvin cycle