CHEM 153A
Biochemistry: Introduction to Structure, Enzymes, and Metabolism
Course statistics
- Predicted GPA
- 3.31
- n = 6,595 · 12 terms · ± 0.007
- A range
- 55%
- of letter grades
- Taken P/NP
- 0%
- 55% of those passed
- D / F / W
- 5.0%
- incl. withdrawals
Sections in Fall 2026
Not offered in Fall 2026.
Enrollment history
Final enrollment per term, averaged across that term's sections. Four years deep, summer excluded. Per-section live curves are on each section page.
- 27722W
- 25122S
- 18122F
- 28123W
- 31823S
- 22223F
- 35024W
- 35024S
- 20424F
- 29825W
- 33525S
Peak 350
Most recent
335
in 25S
11 terms on record
Grade distribution
- A+ 1,228 · 18.4%
- A 1,580 · 23.7%
- A- 848 · 12.7%
- B+ 703 · 10.5%
- B 736 · 11.0%
- B- 421 · 6.3%
- C+ 303 · 4.5%
- C 306 · 4.6%
- C- 143 · 2.1%
- D+ 80 · 1.2%
- D 80 · 1.2%
- D- 40 · 0.6%
- F 127 · 1.9%
- P 18 · 0.3%
- NP 15 · 0.2%
- S 1 · 0.0%
- I 38 · 0.6%
- DR 1 · 0.0%
Grey bars are non-letter outcomes — P/NP, S/U, incompletes. They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
By instructor
| Instructor | Predicted | Raw | n | Terms | A range |
|---|---|---|---|---|---|
| LANNAN, RYAN | 3.30 | 3.30 | 4,674 | 9 | 57% |
| ELLIS GUARDIOLA, KAT | 3.31 | 3.31 | 1,124 | 2 | 48% |
| VAZQUEZ-SALAZAR, ALBERTO | 3.61 | 3.62 | 419 | 2 | 77% |
| CLARKE, STEVEN G | 2.92 | 2.89 | 200 | 1 | 37% |
| CLARKE, CATHERINE FREITAG | 2.92 | 2.89 | 200 | 1 | 37% |
| LEE, ANTHONY | 3.10 | 3.08 | 166 | 1 | 41% |
| GOBER, JAMES W | 3.31 | 3.31 | 12 small sample | 1 | 50% |
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department — so an instructor with a handful of students sits near the course mean rather than topping the list.
By term
- 22W 3.40 n=543
- 22S 3.38 n=499
- 22F 3.36 n=537
- 23W 3.24 n=556
- 23S 3.25 n=625
- 231 3.31 n=12
- 23F 3.22 n=661
- 24W 3.31 n=588
- 24S 3.12 n=693
- 24F 3.35 n=611
- 25W 3.41 n=595
- 25S 3.37 n=675