1 / 16

ATP and energy release

ATP and energy release. Higher Human Biology. Lesson Aims. To compare aerobic and anaerobic respiration To learn about structure and function of ATP To learn about the three stages of respiration. Metabolism. Metabolism - all chemical reactions that occur in cells

juana
Download Presentation

ATP and energy release

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ATP and energy release Higher Human Biology

  2. Lesson Aims • To compare aerobic and anaerobic respiration • To learn about structure and function of ATP • To learn about the three stages of respiration

  3. Metabolism • Metabolism - all chemical reactions that occur in cells • Catabolism – produces energy when bonds between atoms in our food are broken • Anabolism – requires energy to make new bonds building up molecules

  4. Aerobic Respiration • Organisms break down organic materials through the process of aerobic cellular respiration.  • The goal of this process is to break down organic material and harness the released energy in the form of ATP, the universal currency of biological energy. 

  5. Anaerobic Respiration • A few organisms can live without oxygen (anaerobically).  These organisms are capable of metabolizing organic material, but their ATP yield is much lower than that found in aerobic respiration.

  6. ATP and ADP Adenosine diphosphate Adenosine triphosphate

  7. Respiration 3 stages: • Glycolysis • Kreb’s cycle • Cytochrome system

  8. 2 ATP O2 36 ATP HYDROGEN CO2 ATP TOTAL GLYCOLYSIS = 2 CYTOCHROME SYSTEM = 36 TOTAL = 38 GLUCOSE C6H12O6 PYRUVIC ACID CYTOPLASM GLYCOLYSIS OCCURS HERE MITOCHONDRION AEROBIC RESPIRATION OCCURS HERE ACETYL- CoA H2O KREBS CYCLE CYTOCHROME SYSTEM

  9. Glycolysis • Anaerobic • Takes place in cytoplasm • Breakdown of glucose (6C) • Produces 2 molecules of pyruvic acid (3C) • Net gain of 2 ATP • Hydrogen released is transferred to Cytochrome system by NAD • If no oxygen present, pyruvic acid converted to lactic acid

  10. Glycolysis

  11. Mitochondrion

  12. Kreb’s Cycle • Aerobic • Takes place in matrix of mitchondria • Also called TCA or Citric acid cycle • Pyruvic acid diffuses into matrix and is broken down into Acetyl CoA (2C) • Acetyl CoA binds with 4C molecule to give citric acid • Citric acid broken down into 4C molecule by series of enzyme-controlled reactions • Produces CO2 • Hydrogen released is transferred to Cytochrome system by NAD

  13. Kreb’s Cycle

  14. Cytochrome System • Takes place on cristae of mitochondria • Also called electron transfer chain • Hydrogen passed along chain • 36 ATP produced • Oxygen is final hydrogen acceptor releasing water

  15. Cytochrome System

  16. The Facts You Need To Know • page 2-3 • from “respiration occurs in….” • to “if oxygen is available…”

More Related