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Electron Transport Chain

Electron Transport Chain

Assessment

Flashcard

•

Science

•

6th - 8th Grade

•

Hard

Created by

Barbara White

FREE Resource

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14 questions

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1.

FLASHCARD QUESTION

Front

Electron Transport Chain (ETC) Noun

[uh-lek-tron trans-port cheyn]

Back

Electron Transport Chain (ETC)


A series of protein complexes in the inner mitochondrial membrane that transfers electrons to generate a proton gradient for ATP synthesis.

Example: This diagram shows how electrons (e-) move through proteins in a membrane, pumping protons (H+) to one side to create a gradient that powers ATP synthesis.
Media Image

2.

FLASHCARD QUESTION

Front

ATP (Adenosine Triphosphate) Noun

[uh-den-uh-seen try-fos-feyt]

Back

ATP (Adenosine Triphosphate)


The main energy-carrying molecule used to power cellular processes, produced in large amounts during the electron transport chain.

Example: This diagram shows the structure of ATP, made of adenine, ribose, and a triphosphate group, with high-energy bonds that store and release cellular energy.
Media Image

3.

FLASHCARD QUESTION

Front

Mitochondria Noun

[my-toh-kon-dree-uh]

Back

Mitochondria


The organelle where the Krebs cycle and electron transport chain occur, responsible for the majority of cellular ATP production.

Example: This diagram shows a cross-section of a mitochondrion, labeling key parts like the inner and outer membranes, where the electron transport chain occurs.
Media Image

4.

FLASHCARD QUESTION

Front

Cristae Noun

[kris-tee]

Back

Cristae


The folds of the inner mitochondrial membrane, which increase the surface area available for the electron transport chain reactions.

Example: This diagram shows a cross-section of a mitochondrion, pointing out the cristae, which are the inner membrane's folds where the electron transport chain occurs.
Media Image

5.

FLASHCARD QUESTION

Front

Mitochondrial Matrix Noun

[my-toh-kon-dree-uhl mey-triks]

Back

Mitochondrial Matrix


The innermost compartment of the mitochondrion from which protons are pumped during the electron transport chain to create a gradient.

Example: This image shows the mitochondrial matrix, the innermost part of the mitochondrion, which contains enzymes, DNA, and ribosomes needed for energy production.
Media Image

6.

FLASHCARD QUESTION

Front

Intermembrane Space Noun

[in-ter-mem-breyn speys]

Back

Intermembrane Space


The space between the inner and outer mitochondrial membranes where protons accumulate to create an electrochemical gradient for ATP synthesis.

Example: This diagram shows the intermembrane space as the area where protons (H+) are pumped during the electron transport chain, creating a high concentration.
Media Image

7.

FLASHCARD QUESTION

Front

NADH Noun

[en-ey-dee-eych]

Back

NADH


A high-energy electron carrier that donates electrons from glycolysis and the Krebs cycle to the electron transport chain.

Example: This diagram shows the NAD+ cycle, where NAD+ is 'reduced' by gaining electrons and a proton to become the energy-carrying molecule NADH.
Media Image

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