Plant secondary compounds are chemicals that
(a) have no known metabolic function in the plant.
(b) are required for enzyme function.
(c) are generally carbohydrates or proteins.
(d) are important in cell division.
(a) have no known metabolic function in the plant.
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When Calvin injected 14C labeled CO2 into cultures of green algae, what led him to conclude that rubisco adds CO2 to ribulose bisphosphate in the Calvin cycle?
A. Radioactivity appeared last in ribulose bisphosphate. B. Radioactivity first appeared in glucose. C. Radioactivity first appeared in ribulose bisphosphate. D. Radioactivity appeared last in glucose. E. Radioactivity first appeared in 3-phosphoglycerate. F. Radioactivity appeared last in 3-phosphoglycerate
Which procedure is the least-invasive method of assessing fetal health while development is still occurring?
A. amniocentesis B. chorionic villus sampling C. karyotyping D. ultrasound
Anaerobic respiration produces a maximum of ________ ATP per glucose
A) 0 B) 2 C) 10 D) 38
In yeast, heterochromatin formation and transcriptional repression can be facilitated by transcripts of
a. telomeric simple sequence satellites. b. intronic sequences. c. histone genes. d. centromeric simple sequence satellites. e. nested genes.