During photorespiration, the phosphoglycolate (PGO) produced by RuBP oxygenation is eventually converted to PGA; 75% of the carbon in PGO is recovered. How many molecules of PGO are required to generate two molecules of PGA through this route?
A. five
B. four
C. three
D. two
E. one
B
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What separates the strands of DNA in the polymerase chain reaction (PCR) technique?
A. Centrifuge B. Heat C. Restriction enzymes D. Helicase
Organisms living in deep-sea hydrothermal vents do not need light to obtain their energy
Indicate whether the statement is true or false
What is a symptom of Cushing's disease?
a. loss of ability to cope with stress b. mild infection c. abnormally large face and hands d. fat deposition around the trunk e. intellectual disability
Diffusion occurs because
A. Molecules constantly move and collide with each other B. Cellular energy forces molecules to collide with each other C. Molecules are attracted to one another D. Cellular energy pumps molecules across the cell membrane