The first amino acid in most proteins is
a. alanine.
b. isoleucine.
c. leucine.
d. methinonine.
e. phenylalanine.
d
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Based on a variety of experiments, it is known that the rate of photosynthesis is highest when wavelengths of light between 400 and 500 nm are used, and when wavelengths around 700 nm are used. What does this indicate about the relative importance of chlorophyll a and b in photosynthesis?
A. Reflection of light by chlorophyll a and b is essential for the process of photosynthesis
B. Absorption of light by chlorophyll a and b is essential for the process of photosynthesis
C. Transmission of light by chlorophyll a and b is essential for the process of photosynthesis
D. Chlorophyll a and b are much less important than other pigments in the reflection, absorption and transmission of light relevant to photosynthesis
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What do you already know about the role of pigments during photosynthesis? What other information is related to the question?
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Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
If a coding sequence in DNA read CAT, what would the anticodon of the associated tRNA read?
A. CAT D. CAU B. GTA E. GAT C. GUA
Each of the following complexes pumps protons out of the matrix to generate the proton gradient except
A) complex I. B) complex II. C) complex III. D) complex IV. E) coenzyme Q.
Most viruses cannot be seen by light microscopy
Indicate whether the statement is true or false