Quiz 1 concepts

Question 1

Refers to when enzymes can hold substrate such that the reactive position of the substrates are closer together

Question 2

The rate of reaction is proportional to the amount of _____ present

Answer 2

enzyme

Question 3

The reaction order in the substrate ________ from the initial concentration to zero

Answer 3

decreases

Question 4

At relatively high substrate concentration, the reaction rate is ___ order

Answer 4

zeroth

Question 5

In the substrate concentration-rate of reaction graph, a plateau happens because ____________

Question 6

A low value of Km indicates that the enzyme has __________ affinity with the substrate

Answer 6

high

Question 7

Specificity is derived from the formation of many ________ interaction between enzyme and its specific substrate molecule

Answer 7

weak

Question 8

In reactions specificity, an enzyme is specific to a particular reaction, but not to __________

Answer 8

substrates and catalyzes only one type of reaction

Question 9

Stereo specificity is also called

Answer 9

optical specificity

Question 10

THe kinetic of allosteric enzymes fit the ________ growth curve

Answer 10

sigmoidal

Question 11

In allosteric enzyme, the rate of reaction ______ -with the presence of competitive inhibition

Answer 11

is not affected

Question 12

In the concerted model, when Kt is infinite, the factor c is 1

Question 13

For a mixed noncompetitive inhibition, KAi is ___________to Kci

Answer 13

equal

Question 14

Uncompetitive inhibition causes ________ in both Vmax and Km

Answer 14

decrease

Question 15

For competitive inhibition, when Km increases, then Vmax ______

Answer 15

is constant

Question 16

For uncompetitive inhibition, the y-intercept is ___________ and the slope is ________

Answer 16

different; same

Question 17

The coefficient of carbon in biomass is always

Answer 17

1

Question 18

In stoichiometry, ________ reactions are associated with NADH generation and utilization

Answer 18

not all

Question 19

The degree of reduction for organic compounds is defined as

Answer 19

available electrons per atom C

Question 20

Provides information on the microbial growth of the cell

Question 21

The degree of reduction of ethanol is

Answer 21

6

Question 22

The number of oxygen molecules per mole of substrate consumed is known as

Answer 22

growth yield coefficient

Question 23

In the absence of product formation, if all available electrons were used for biomass synthesis, the fraction of available electron would be

Answer 23

maximum

Question 24

There is a _______ relationship between the amount of biomass produced and the amount of substrate consumed

Answer 24

linear

Question 25

When the energy yield of a metabolic pathway is known (_____________), the growth yield can be calculated

Answer 25

Nitrogen N moles of atp produced per gram of substrate consumed