Bio 156 Lesson 5

Front 1

Metabolism

Back 1

The cell’s capacity to aquire energy and use it to build, degrade, store, and release substances in controlled ways.

Front 2

Energy

Back 2

capacity for work

Front 3

Entropy

Back 3

the measure of how much and how far a concentrated form of energy has beed dispersed after an energy change

Front 4

Tell why we, as organized individual organisms, do not
violate the second law of thermodynamics.

Back 4

The collective strength of chemical bonds resists the spontaneious direction of energy flow.

Front 5

Distinguish between potential and kinetic energy.

Back 5

Potential-a capacity for work because of something’s location and the arrangement of its parts.

Kinetic-energy of motion

Front 6

Describe the structure of ATP.

Back 6

5 carbon sugar, adenine base, 3 prosphate groups

Front 7

Explain how ATP functions in the cell.

Back 7

ATP fuctions as the cell’s energy currency.

Front 8

Define the term "phosphorylation

Back 8

Any phosphate group transfer

Front 9

Diagram and describe the ATP - ADP cycle

Back 9

ATP releases a phosphate group resulting in ADP. ADP becomes ATP by binding to an inorganic phosphate, or a phosphate group that was cleaved from another molecule

Front 10

Define the term "activation energy."

Back 10

Amount of energy required to get the reaction going on its own

Front 11

Diagram and explain the induced fit model of enzyme function

Back 11

An enzyme restrains a substrate that almost fits into its active site, and stretches the substrate until it fits

Front 12

Describe the nature of an "active site."

Back 12

Pocket or crevice where a substrate binds and is reacted upon

Front 13

Feedback inhibition as a control of metabolic pathways

Back 13

Allosteric site inclusion, where molecules in high concentration bind with sites and slow reactions. When substrates are in low concentration, the active site is unbound, increasing synthesis rates.

Front 14

5.function and value of coenzymes

Back 14

metal ions or coenzymes shift electron configurations in substrates.

Front 15

What is the difference between exergonic and endergonic reactions? Give an example of each. What is the significance of each type of reaction

Back 15

Anabolic (endergonic), protien construction, catabolic (exergonic), glycolosis

Front 16

State the first law of thermodynamics

Back 16

Energy cannot be created or destroyed

Front 17

State the second law of thermodynamics

Back 17

Energy flows from an area of greater to lesser concentration