The Activation Energy for a Reaction

question 34

Multiple Choice

The activation energy for a reaction

• A)is less when enzymes are present.
• B)allows greater interaction of substrate with the active site.
• C)is needed to begin a reaction.
• D)puts the substrate at its transition state.
• E)is all of these.

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Definitions:

Extracellular Matrix

A sophisticated mesh of proteins and polysaccharides released by cells that offer both structural and biochemical assistance to adjacent cells.

Loose Connective Tissue

Connective tissue that consists of fibroblasts and fibers scattered in a gel-like matrix.

Collagen And Elastin

Essential proteins in connective tissues; collagen provides structural support and strength, while elastin allows tissues to resume shape after stretching or contracting.

Extracellular Matrix

A complicated web of proteins and carbs encases cells, offering both structural and biochemical aid to tissues and organs.