Electron Transport Chain

The electron transport chain is the _______________ step of cellular respiration.

• First

• Second

• Third

• Fourth

Tags

NGSS.HS-LS1-7

Electron transport chain is the part of cellular respiration where the most ____________ is/are generated.

• Electron carriers

• NADH/FADH₂

• O₂

• ATP

Tags

NGSS.HS-LS1-7

The main purpose of the electron transport chain is to

• create an electron gradient to power ATP synthesis

• add hydrogen to NAD+ so it can return to the Krebs Cycle

• create a hydrogen ion gradient to power ATP synthesis

• rid the body of oxygen and create water

NADH and FADH₂ are considered...

• electron carriers

• proton creators

• ATP synthase

• electron transport proteins

Tags

NGSS.HS-LS1-7

In the ETC, hydrogen ions are pumped from the __________ to the ___________.

• matrix; intermembrane space

• intermembrane space; matrix

• matrix; cytoplasm

• intermembrane; cytoplasm

Tags

NGSS.HS-LS2-3

In the electron transport chain, Oxygen acts as...

• a carrier of electrons, passing electrons down the chain

• a reducing agent

• the terminal electron acceptor

• a coenzyme

Tags

NGSS.HS-LS1-7

The effect of increased levels of hydrogen ions in the intermembrane space of the mitochondria is

• Increase ATP production

• Decreased levels of oxidative phosphorylation

• Increased levels of water in intermembrane space

• Decreased levels of chemiosmosis

Tags

NGSS.HS-LS1-7

As electrons travel down the electron transport chain, they release

• ADP

• Energy to pump protons

• ATP

• Hydrogen ion

Tags

NGSS.HS-LS1-7

A poison which inhibits the activity of any cytochrome (protein complex) in the ETC will result in the following reaction:

• Excess ATP

• oxygen production

• Insufficient ATP

• water synthesis

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

ATP synthesis by ATP synthase is driven by

• the proton motive force

• electron movement

• NADH movement

• FADH₂ movement

Tags

NGSS.HS-LS1-7