production of energy from the web-site open 2.22 production of energy notes and upload to ebackpack
DESCRIPTION
Metabolism Broken into two main types 1.Anabolism Building up of molecules Requires energy 2.Catabolism Breaking down of molecules Releases energyTRANSCRIPT
Production of Energy
From the web-site open 2.22 Production of energy notes
and upload to eBackpack
Cell Metabolism(Physiology)
defined as
all the chemical reactionsor changes within a cell
Metabolism
Broken into two main types1. Anabolism• Building up of molecules • Requires energy 2. Catabolism• Breaking down of molecules• Releases energy
Check: Anabolic or Catabolic?
amino acids join together to make dipeptides:
e.g. NH2CHRCOOH + NH2CHRCOOH =12 NH2CHRCONHCHRCOOH + H2O
anabolic
Check: Anabolic or Catabolic?
The decomposition of hydrogen peroxide into water and oxygen:
2H2O2 =12 2H2O + O2
Catabolic
Check: Anabolic or Catabolic?
The conversion of glucose during respiration to produce carbon dioxide and water.
C6H12O6 + 6O2 =12 6CO2 + 6H2O
Catabolic
Check: Anabolic or Catabolic?
glycerol reacts with fatty acids to make lipids:
e.g. CH2OHCH(OH)CH2OH + C17H35COOH =12 CH2OHCH(OH)CH2OOCC17H35
Anabolic
Metabolism
controlled byEnzymes
Review: Enzymes
Enzymes belong to which group of chemicals?a. lipidsb. carbohydratesc. proteinsd. nucleic acids
Review: Enzymes
Enzymes act as biologicala. catalystsb. inhibitorsc. substratesd. solvents
Review: Enzymes
Enzymes speed up biological reactions bya. lowering the temperature of the reactionb. increasing the temperature of the reactionsc. lowering the activation energy of the reactiond. increasing the activation energy of the reaction
Metabolism
Requires
Chemical energy
Made during cellular respiration (ATP)
Metabolism
follow
Pathways
A sequence of enzymecontrolled reactions
Metabolism
Instructed by
DNA
Cellular Respiration Summary- Glycolysis
Cellular Respiration Summary- Citric Acid Cycle or Kreb’s Cycle
Cellular Respiration Summary- Electron Transport Chain
Glycolysis
ANAEROBIC
Starts with glucose (C6H12O6) Takes place in ( cytosol / mitochondria ) Products are: 2 three carbon pyruvate2 NADH ( energy molecule )2 H2O2 ATP ( energy molecule )
Glycolysis animation
Transition Stage
Is oxygen available?
Yes- Pyruvate is converted to Acetyl-CoA
No- Pyruvate is converted to lactic acid
Citric Acid Cycle (Kreb’s Cycle)
Starts when pyruvate is converted to Acetyl-CoA, then citric acid. Takes place in the ( Cytosol / Mitochondria )
Products are: 6 NADH 2 FADH2 ( energy molecule ) 2 ATP 4 H2O
AEROBIC
Kreb’s cycle animation
Electron Transport Chain(ETC)
Uses H+ from NADH and FADH2 to create a gradient across the membrane Takes place in the ( cytosol / mitochondria ) Products are: H2O 32-34 ATP
AEROBIC
ETC animation
Summary
C6H12O6 + O2 ---- Energy (ATP and heat) + CO2 + H2O
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