BIOCHEM 2EE3 Lecture Notes - Lecture 4: Phagocytosis, Humoral Immunity, Antigen

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blackherring683

7 Mar 2018

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Gibbs free energy of activation (g ): equal to the di erence in free energy between the transition state and substrate (s) Gibbs free energy change ( g): the free energy di erence between (s) substrate and (p) product indicates if reaction is energetically favourable or not but doesn"t tell anything about rate of rxn rate of rxn government by g . Gibbs free energy equation: g = h - t s. Enzymes as catalysts hydrolysis of an ester by oh ion = enzyme catalysis. C=o bond substrate upon binding is pushed to t in order to be more complementary to the ts shape and not initial substrate shape. Antibody: a y shaped protein molecule produced by b-cells whose function is to recognize and bind to speci c antigens. Antigen: a substance that elicits an immune response (i. e. production of antibodies) Anatomical barriers - ex. skin, mucous membranes and stomach acid.

Related Questions

The Gibbs free energy of activation (ÎG+)(delta G dagger) is Gibbs free energy diagram.png the difference between the uncatalyzed transition state and the products the difference between the substrate/reactants and the transition state the difference between the substrate/reactants and products the difference between the catalyzed transition state and the products the difference between the products and the transition state

A) the difference between the uncatalyzed transition state and the products

B) the difference between the substrate/reactants and the transition state

C) the difference between the substrate/reactants and products

D) the difference between the catalyzed transition state and the products

E) the difference between the products and the transition state

Which of the following is FALSE with respect to coupledreactions?

	they occur in ALL cells (bacteria, plants, animals, etc.)
	enzymes are typically involved
	endergonic reactions power exergonic reactions
	the coupled reaction has a ?G value that is negative
	none of the above (i.e., all of the above are TRUE)

Which of the following reactions is LEAST likely to bespontaneous? One with a:

	very large increase in entropy and a very large decrease inenthalpy
	very large increase in entropy and a very small increase inenthalpy
	very small decrease in entropy and a very large decrease inenthalpy
	very small increase in entropy and a very small decrease inenthalpy
	very small decrease in entropy and a very small increase inenthalpy

Energy of activation refers to the:

A)	?G of a reaction
B)	difference in energy between the transition state and theproduct
C)	difference in energy between substrate and product
D)	net change in free energy
E)	energy input needed to reach the transition state

Homeostasis refers to maintaining a relatively constantenvironment, and is achieved to a large extent by how enzymes areregulated. For example, when the end product of a pathway regulatesan enzyme that acts early in the same pathway, the effect is mostoften:

	stimulation if an anabolic pathway, and inhibition if acatabolic pathway
	inhibition if an anabolic pathway, and stimulation if acatabolic pathway
	stimulation, whether an anabolic or catabolic pathway
	inhibition, whether an anabolic or catabolic pathway

Enzymes function by:

	decreasing the free energy level of the reactants
	decreasing the free energy level of the transition state
	increasing the free energy level of the reactants
	changing delta G from positive to negative
	changing delta G from negative to positive
	increasing the free energy level of the products
	decreasing the free energy level of the products

6.	When carbohydrates are oxidized, the C

ivorylion772

Hi, Can someone please answer me questions 8 and 9. Thank you very much!

BIOCHEM 2EE3 Lecture Notes - Lecture 4: Phagocytosis, Humoral Immunity, Antigen

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