| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| In 1779 Dutch scientist Jan Ingenhousz published his discovery of this process in green plants | photosynthesis | $200 | J | LESSER-KNOWN SCIENTISTS | 2012-01-27 | #6300 | |
| Melvin Calvin won a 1961 Nobel Prize for his study of this biological process in plants | photosynthesis | $400 | DJ | SCIENTISTS | 1991-09-25 | #1623 |