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CHEM 156 · Lec 1

Physical Biochemistry

Fall 2026Wollman, R.4 units

Seats, time, final and grades

Seats

Waitlist, 0 of 5 places taken.

90 of 90 enrolled, lecture and all discussions summed.

Meets

MTWF 10:00am-10:50am

Lecture only. You also attend a discussion, listed below.

Final

Tue 8 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 4 days ago.

Grades

3.31
predicted, all instructors · 932 grades

932 letter grades, everyone who has taught CHEM 156.

Read 42 minutes ago. This is a recent reading, not a live seat count.

Join the waitlist on the registrar (opens in a new tab) Sign in to watch for an opening

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Before you can enroll

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar limited until second pass

Any student attempting to save or sell a spot for another student is violating Student Conduct Code 102.23d and may be referred to the Office of the Dean of Students. Enrollment is limited to departmental majors on the priority and first enrollment passes. Any student may enroll on the second pass, space permitting.

This limit ends at an enrollment pass rather than on a date, and dibs does not hold the date second pass opens for Fall 2026, so it cannot say whether that pass has come. When it does, the registrar writes who may enroll then as “Any student may enroll on the second pass, space permitting.” So dibs cannot tell whether this class is open to you today, and it is not counting it as one you can take: your enrollment appointment on MyUCLA is what settles it.

Restrictions read 4 days ago. dibs re-reads these slowly because they rarely change; watch the section and it moves to every 6 hours.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

3 discussions, none open. The way in is the lecture's waitlist, at 0 of 5.

No discussion is open. 2 discussions have a waitlist with room. A place on one is not a seat: it is a queue the department may or may not clear.
  • Dis 1A

    R 9:00am-9:50am

    Nematiaram, F.

    Waitlist, 0 of 2 places taken.

  • Dis 1B

    R 12:00pm-12:50pm

    de Ocampo, H.

    Waitlist, 0 of 2 places taken.

  • Dis 1C

    R 3:00pm-3:50pm

    Montero, R.

    Closed.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: MTWF 10:00am-10:50am

Young Hall 2200

Grades

3.31
predicted, all instructors · 932 grades

Of the 4 other people in the grade record for CHEM 156, the 2 with the most grades: CLUBB, ROBERT THOMPSON at 3.06 over 375 grades and RODRIGUEZ, JOSE ALFONSO at 3.63 over 335 grades.

A range
52%
P/NP
<1%
D/F/W
2.8%

Full grade history for CHEM 156

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

dibs has not read this course’s reviews, so it cannot say what kind of work it sets. That is dibs not having looked. It is not a course without papers or exams, and the reviews linked below are the answer until dibs catches up.

Reviews for CHEM 156 Search the reviews for R. Wollman

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 6421F
  • 9422W
  • 7622S
  • 6322F
  • 11023S
  • 11924W
  • 10624S
  • 6624F
  • 6625W
  • 8325S
  • 8925F
Enrollment by term: 21F 64, 22W 94, 22S 76, 22F 63, 23S 110, 24W 119, 24S 106, 24F 66, 25W 66, 25S 83, 25F 89

Peak 119 · most recent 25F at 89

Seats over time

Same seat count, but the status moved and came back, the waitlist went 3 of 5 to 0 of 5, and the seat count moved and came back over about 2 months

1 time reopened
90 of 90 · no seats left in its discussions
17 Aug 15:079 Sep 05:041 Oct 19:02
dibs read 168 of the 512 hours its hourly record covers, 33%, and did not look in 344. dibs had no hourly record before 10 Sep, which is the other 573 of 1085 plotted.90 of 90 enrolled at the newest reading, 42 minutes ago, and no seats left in its discussions. Seats from 17 Aug 15:07 to 1 Oct 19:02, 90 to 90. dibs read 168 of the 512 hours its hourly record here covers, 33%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 344 hours dibs was keeping a record and did not reach this section. Nothing before 10 September at 12:00, where this section's record starts, has a read either way, which is 573 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 42 minutes ago.

Show the readings (27)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 19:02 90 90 waitlist 0 of 5 1 of 1
1 Oct 19:02 90 90 waitlist 0 of 5 13 of 40
30 Sep 04:12 90 90 waitlist 1 of 5 2 of 5
30 Sep 00:02 90 90 waitlist 2 of 5 2 of 5
29 Sep 20:32 90 90 waitlist 1 of 5 10 of 30
28 Sep 15:02 90 90 waitlist 2 of 5 5 of 15
28 Sep 01:02 90 90 waitlist 1 of 5 2 of 5
27 Sep 21:32 90 90 waitlist 2 of 5 2 of 4
27 Sep 18:12 90 90 waitlist 3 of 5 2 of 4
27 Sep 15:02 90 90 waitlist 2 of 5 5 of 15
27 Sep 01:12 90 90 waitlist 3 of 5 2 of 5
26 Sep 21:42 90 90 waitlist 4 of 5 9 of 28
25 Sep 18:12 90 90 closed 5 of 5 2 of 5
25 Sep 14:42 90 90 waitlist 4 of 5 2 of 4
25 Sep 11:32 90 90 closed 5 of 5 6 of 18
24 Sep 18:12 90 90 waitlist 4 of 5 2 of 5
24 Sep 14:42 89 90 open 4 of 5 4 of 11
24 Sep 04:12 90 90 waitlist 3 of 5 12 of 39
22 Sep 14:22 90 90 waitlist 4 of 5 19 of 59
20 Sep 04:12 90 90 closed 5 of 5 3 of 8
19 Sep 21:22 90 90 waitlist 3 of 5 2 of 4
19 Sep 18:02 90 90 closed 5 of 5 18 of 53
17 Sep 14:42 90 90 waitlist 3 of 5 8 of 24
16 Sep 15:52 90 90 waitlist 4 of 5 20 of 60
14 Sep 04:12 90 90 closed 5 of 5 39 of 491, 402 no hourly record
24 Aug 18:40 90 90 waitlist 4 of 5 no hourly record
17 Aug 15:07 90 90 waitlist 3 of 5 -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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