'Enzyme molecules' diaporamas de présentation

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Title: The growth curve

05 January 2020. Title: The growth curve. Homework: complete learning package 12. Learning Outcomes. Describe, with the aid of diagrams, and explain the standard growth curve of a microorganism in a closed culture. Standard Growth curve. Lag phase Bacteria adjusting to new conditions

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Plant Nutrition Plant Responses to External Signals

Plant Nutrition Plant Responses to External Signals. Soil. Topsoil: mixture of rock particles and living organisms (how break rock?) Teaspoon of topsoil: 5 billion bacteria, fungi, algae, insects, earthworms, nematodes Humus: decaying organic materials

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ENZYMES

ENZYMES. http://www.kscience.co.uk/animations/model.swf. http://www.kscience.co.uk/animations/ectopeptidase.swf. http://www.kscience.co.uk/animations/enzyme.swf http://www.youtube.com/watch?v=XTUm-75-PL4.

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What is the function of the human liver?

What is the function of the human liver?. Largest gland in the body Filled with enzymes Breaks down old worn out red blood cells Cleans the blood of toxins Can not survive without a liver. Normal Liver. Liver with Cancerous Tumors. Cirrhosis of the Liver (scarring). ENZYMES.

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Enzymes

Enzymes. Definition of an enzyme. Enzyme is protein catalyst (i.e. increase the rate of reactions ) NOT changed during the reaction Enzymes direct all metabolic reactions occurring in the cells. Classification of enzymes. 1- Oxidoreductase :

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Enzymes

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Enzymes

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Operons

Operons. Big picture. Prokaryotic control of genome expression 2 levels of control Change in # of enzyme molecules produced Change in activity of enzymes present Ex: feedback inhibition Genes turned on/off based on metabolic needs: operons Operator + promoter + group of genes

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What are enzymes made of?

What are enzymes made of?. Enzymes are protein molecules , and so are made up of amino acids. These amino acids are joined together in a long chain, which is folded to produce a unique 3D structure. Why are enzymes so specific in their reactions?. Characteristics of enzymes.

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How are enzyme activities affected by temperature and pH ?

How are enzyme activities affected by temperature and pH ?. 1 Temperature. ? Enzyme activity is usually expressed in terms of reaction rate. the rate at which substrates are used up or broken down, or the rate of formation of product(s).

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Title: Industrial Enzymes

05 January 2020. Title: Industrial Enzymes. Homework: learning package 12 due today. Learning Outcomes. (d) describe how enzymes can be immobilised; (e) explain why immobilised enzymes are used in large-scale production. Immobilising enzymes.

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PENTOSE PHOSPHATE SHUNT or HEXOSE MONOPHOSPHATE PATHWAY This pathway consists of two parts:

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LAB Exercise II-12 Enzymes

Lab

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Enzymes in Industry

Enzymes in Industry. describe how enzymes can be immobilised; explain why immobilised enzymes are used in large-scale production; . Enzymes as Catalysts. Enzymes are used to speed up chemical (metabolic) reactions e.g. respiration or photosynthesis- so why use enzymes in industry?

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