Caffeine is an inhibitor of phosphodiesterase. Therefore, the cells of a person who has recently consumed coffee would have increased levels of which of the following molecules?

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#Question id: 2084

#2. Cellular Organization

Which two organelles are responsible for producing phospholipids and sphingolipids?

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#Question id: 5529

#5. Developmental Biology

In humans, organogenesis in the embryo is basically accomplished by the end of which period of the pregnancy?

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#Question id: 10274

#6. System Physiology – Plant

In plastids, a partial glycolysis occurs that produces metabolites for plastidial biosynthetic reactions, which of the following is not synthesized in the plastid?

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#Question id: 10313

#6. System Physiology – Plant

Which of the following enzyme are found in the inner membrane of mitochondria?

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#Question id: 15778

#5. Developmental Biology

Stem cell regulation is highly influenced by the microenvironment that surrounds a stem cell and is known as the