AP Biology Notes - Ch. 9 & 10 - Copying someone...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
“Copying someone else’s work in considered plagiarism and an honor code violation. The work completed in this study guide is my own. ” ____________________________ Shreya Maddireddy Carpenter 11.2.09 TEXTBOOK ASSIGNMENT Chapter 9 1. Create a chart to distinguish between fermentation and cellular respiration. Include reactants, products, energy harvest, and location. Cellular Respiration Fermentation most prevalent and efficient catabolic pathway for the production of ATP, in which oxygen is consumed as a reactant along with the organic fuel occurs in cytoplasm and in mitochondria - NAD+: Nicotinamide adenine dinucleotide, a coenzyme present in all cells that helps enzymes transfer electrons during the redox reactions of metabolism catabolic process that makes a limited amount of ATP from glucose without an electron transport chain and that produces a characteristic end product, such as ethyl alcohol or lactic acid occurs outside of mitochondria in cytoplasm enables some cells to produce ATP without the use of oxygen - extension of glycolysis that can generate ATP solely by substrate–level phosphorylation—as long as there is a sufficient supply of NAD + to accept electrons during the oxidation step of glycolysis Catabolic pathways are metabolic pathways that release stored energy by breaking down complex molecules. Fermentation and cellular respiration are examples of catabolic pathways. 2. Using a diagram, explain how ATP is recycled in cells.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3. Write and describe redox reactions; explain how they are involved in energy changes, and the role of coenzymes like NAD+ in these reactions. Redox reactions (oxidation–reduction reaction) are chemical reactions involving the transfer of one or more electrons from one reactant to another; oxidation: loss of electrons from a substance; reduction: addition of electrons to a substance. ATP is produced by substrate–level phosphorylation and NAD + is reduced to NADH by electrons released from the oxidation of the food. Electrons are transferred from substrates to NAD + to form NADH 4. Describe the role of NAD+ and the electron transport chain during respiration. Include the role of electrons in each process. Explain what would happen if the amount of NAD+ was limited. NAD + : Nicotinamide adenine dinucleotide, coenzyme present in all cells that helps enzymes transfer electrons during the redox reactions of metabolism. NAD + acts as an electron ‘carrier’, a coenzyme. Enzymes called ‘dehydrogenases’ remove a pair of hydrogen atoms from the substrate (think of as the removal of two electrons). The enzyme delivers these electrons to NAD + , and then NADH is neutral, and carrying electrons to the electron transport chain where they then make their ‘fall’ towards O 2 , creating ATP. 5.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

AP Biology Notes - Ch. 9 & 10 - Copying someone...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online