BIO Test 3

What is special about fermentation?

• It is a catabolic pathway

• It occurs without the use of oxygen

• It can degrade different types of organic molecules

• It uses enzymes to break down sugar

Which of the following are correctly paired together?

• Reducing agent is electron donor

• Reducing agent is electron acceptor

• Oxidizing agent is electron donor

• Oxidizing agent is proton acceptor

Which of the following is NOT true?

• NAD+ is a coenzyme

• NAD+ can easily cycle between oxidized and reduced states

• Electrons lose most of their potential energy going from glucose to NAD+

• Energy is released when NADH transfers electrons down the energy gradient to oxygen

How many net ATP are produced during glycolysis?

• 4

• 1

• 6

• 2

What is the main product of glycolysis?

• 2 ATP

• 2 NADH

• 4 ATP

• 2 Pyruvate molecules

What does the citric acid cycle produce PER acetyl group?

• 6 NADH, 2 FADH2, 2 GTP

• 3 NADH, 2 FADH2, 2 GTP

• 3 NADH, 1 FADH2, 1 GTP

• 6 NADH, 2 FADH2, 1 GTP

The hydrogen proton gradient formed by the ETC is called the "proton _________ force"