Enzymes+edit

Enzymes+edit - Chapter 2 Lecture Outline Energy and Enzymes...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 2 Lecture Outline Energy and Enzymes
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 Energy in Living Systems Metabolism is the sum of all chemical reactions in the body (catabolism & anabolism) . Metabolism transfers energy and follows the laws of thermodynamics.
Background image of page 2
Thermodynamics All chemical reactions require energy to occur. Amount of energy varies with the amount of bonds broken and formed. Catalyst is a chemical that helps chemical reactions occur with less energy. Enzymes are biological catalysts. 3
Background image of page 3

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

View Full DocumentRight Arrow Icon
4 Using Energy from Food Energy transfer in non-living systems can be explosive: CH 4 + O 2 CO 2 + 2 H 2 O + energy methane oxygen gas carbon dioxide water heat Energy transfer in cells must be controlled Reactions of cellular respiration performed in a series of steps
Background image of page 4
5 Reactions and Enzymes All chemical reactions need a “jump start ” in order to proceed Energy needed to jump start a reaction is called activation energy
Background image of page 5

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

View Full DocumentRight Arrow Icon
6 Enzymes Work by lowering the activation energy
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 24

Enzymes+edit - Chapter 2 Lecture Outline Energy and Enzymes...

This preview shows document pages 1 - 7. Sign up to view the full document.

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