If 90 molecules of CO2 are fixed by ribulose bisphosphate (RuBP), how many molecules of phosphoglyceraldehyde (PGAL) will leave the Calvin cycle?
What will be an ideal response?
30
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The tube through which urine leaves the urinary bladder is called the ____
a. collecting duct b. urethra c. renal pelvis d. ureter e. renal vein
What is the immediate result once a signal molecule binds to a receptor protein-tyrosine kinase?
a. receptor dimerization b. receptor trimerization c. receptor denaturation d. receptor polymerization e. receptor hydrolysis
Which of the following statements concerning long-term potentiation is false?
a. It is involved in establishing memory. b. It involves an increased strength of synaptic connections. c. It occurs between two neurons. d. It occurs when action potentials are transmitted for less than one minute. e. It is involved in learning.
When the electrons from reduced cofactors are transferred to oxygen in mitochondria, the process is coupled to the formation of _______ molecules of ATP.
a. 2 b. 10-12 c. 22-24 d. 32-34