Hydrogen bonding is most important in stabilizing the ________ structure of many proteins.
A) primary
B) secondary
C) tertiary
D) quaternary
E) all of the above
B) secondary
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The micronutrient iron is abundant in soil, but often unavailable to plants due to insolubility
Knowing that the reaction Fe(OH)3 + 3 H+ ? Fe3+ + 3 H2O occurs, and assuming all soil samples have the same total amount of iron, which type of soil would you predict to have the highest amount of soluble iron? A) neutral B) acidic C) alkaline D) The amount of iron in soil does not depend on pH.
Ribosomes are most closely associated with ____
a. the Golgi complex b. lysosomes c. mitochondria d. smooth endoplasmic reticulum e. the cytoplasm and rough endoplasmic reticulum
The genetic switch for the infection pathways of lambda phage is controlled by two regulatory proteins: ________ and ________
A) lambda repressor, Cro B) lambda repressor, permease C) excisionase, integrase D) recA, Cro E) lyase, lysogenase
What is the difference between the lymphatic system and the cardiovascular system in humans? Describe the key functions of each system.
What will be an ideal response?