Outline the four levels of protein structure that give the protein its three-dimensional shape and determine its function
What will be an ideal response?
The primary structure of a protein is the amino acid sequence of the polypeptide chain. The secondary structure is the pleated or helical structure generated by the formation of bonds between amino acids. The tertiary structure is the three-dimensional structure brought about by folding on itself. The quaternary structure is formed by the interaction of two or more polypeptide chains in a protein.
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Which of the following types of plant hormones is apparently synthesized from carotenoid pigments
inside plastids?
a. salicylic acid b. cytokinins c. abscisic acid d. jasmonates e. brassinosteroids
What factor does not affect deepwater wave production?
a. Gravitational pull of the moon b. Wind speed c. Fetch d. Duration of wind blowing
If fermentation pathways follow glycolysis, ____
a. CO2 will be one of the products as pyruvate is converted to lactate b. the two NADH molecules produced during glycolysis will (depending on the organism) be used to reduce pyruvate to either lactate or ethanol and CO2 c. ATP will be required to convert pyruvate to either lactate or ethanol and CO2 d. oxidative phosphorylation occurs either on the plasma membrane or on derivatives of the plasma membrane e. ATP will be required to convert lactate to pyruvate and CO2
Which chemical may be recycled from ammonia in the soil and then converted to organic proteins in plants?
A) nitrogen B) glucose C) water D) ATP