The reason that deciduous leaves turn bright colors of red and yellow in the fall is
What will be an ideal response?
when chlorophyll breaks down, the remaining pigments other than green will show through
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The figure below shows a three-dimensional model of the enzyme lysozyme and a map of the location of the important binding and catalytic amino acids that participate at the active site
Why are the amino acids of an enzyme that participate in substrate binding and in catalytic activity widely separated on the polypeptide chain, rather than being close together in the primary sequence? What will be an ideal response?
If you were to extract all of the proteins from a leaf and measure the composition of rubisco, you would find that it
comprises about ____% of the total leaf protein.
a. 10 b. 25 c. 50 d. 75 e. 90
The Earth has experienced ____ major mass
extinctions during its history.
a. 3 b. 5 c. 8 d. 12 e. 15
As osteocytes become enclosed in small chambers called lacunae, they still can communicate via ________
Fill in the blank(s) with correct word