Biochemistry: Introduction to Structure, Enzymes, and Metabolism

Heather Tienson

Biochemistry: Introduction to Structure, Enzymes, and Metabolism

Chemistry and Biochemistry department

Heather Tienson

Add Review
from 77 users

Ratings

Bad
Overall 3.3
Good
Hard
Easiness of class 2.3
Easy
Heavy
Workload 2.3
Light
Not Clear
Clarity of professor 3.4
Clear
Not Helpful
Helpfulness of professor 3.3
Helpful
AD

Tags

  • Uses Slides
  • Is Podcasted
  • Appropriately Priced Materials
  • Tough Tests
  • Gives Extra Credit
  • Tolerates Tardiness
  • Participation Matters

Textbooks

iclicker+ student remote and REEF 6M Packaging
i-clicker
ISBN: 9781319149246
View on Amazon
Bruinwalk is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.

Grades

Fall 2017
25.3%
21.1%
16.9%
12.7%
8.4%
4.2%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Winter 2017
20.1%
16.8%
13.4%
10.1%
6.7%
3.4%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Spring 2017
23.6%
19.7%
15.8%
11.8%
7.9%
3.9%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Fall 2016
20.7%
17.2%
13.8%
10.3%
6.9%
3.4%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Winter 2016
31.6%
26.3%
21.1%
15.8%
10.5%
5.3%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Spring 2016
31.7%
26.4%
21.1%
15.8%
10.6%
5.3%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Fall 2015
22.2%
18.5%
14.8%
11.1%
7.4%
3.7%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Winter 2015
22.9%
19.1%
15.3%
11.5%
7.6%
3.8%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Spring 2015
20.2%
16.8%
13.5%
10.1%
6.7%
3.4%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Fall 2014
22.6%
18.8%
15.1%
11.3%
7.5%
3.8%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Winter 2014
22.0%
18.3%
14.6%
11.0%
7.3%
3.7%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Spring 2014
25.3%
21.1%
16.8%
12.6%
8.4%
4.2%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Fall 2013
20.4%
17.0%
13.6%
10.2%
6.8%
3.4%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Winter 2013
20.0%
16.7%
13.3%
10.0%
6.7%
3.3%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Spring 2013
25.5%
21.2%
17.0%
12.7%
8.5%
4.2%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

Fall 2012
25.8%
21.5%
17.2%
12.9%
8.6%
4.3%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

AD
AD
1 of 7

Reviews

Quarter Taken: Spring 2018 Submitted July 19, 2018 Grade Received: A

Just memorize her previous exams, and you can end up with an A

Quarter Taken: Spring 2018 Submitted July 4, 2018 Grade Received: A

I took this class while most of my friends took Professor Gober's class, which honestly really made me upset at times. I would hear how my friends would get As on his exams and how they were understanding what he was lecturing in class. I will say this though: although Tienson's class is significantly harder, the exams are less weighted because there are clicker, quiz, and homework points so it's not horrible (1 assignment throughout the whole quarter lol). Also if you take a look at the AAMC breakdown of the biochemistry section, you'll see that she did a really good job including everything that they test. As a lecturer however, I think she's okay. She says "um" a lot which started to really annoy me after a few weeks and I felt she could have been clearer about a lot of things. She also got sassy/short with people if they asked a stupid question or if people were being too loud/packing up. Anyway, everything that she does test on is outlined in her (optional) study questions (which are really lengthy but if you do them it's worth it!!!) and she doesn't really blindside you. Also discussion and LA review were actually surprisingly helpful. HER EXAMS ARE HARD!! Our final average was a D+ and in her email she was literally like "great job you guys" ???

Needless to say, her curve is generous af which almost makes up for it lol. I thought the first midterm was the easiest and obviously the final was pretty damn hard.

Grade breakdown:
30 points HW assignment
25 points clicker
100 points for 7 quizzes (3 worth 20 points, 2 worth 10, 2 online worth 10)
100 points MT 1
100 points MT 2
200 points final
(555 points total)
+maybe 10-15 points extra credit
A- was 82% ish and an A was probably 87%

I got an A by doing ~12% above average on each exam, 100% on the quizzes (I missed a few points on one but she gave an extra credit survey at the beginning of the quarter which can cover up to 10 quiz points I believe), 27/30 on the Pymol assignment, 23/25 on clickers (she only drops like 2 clicker scores even though the class is 4 lectures a week???), and I did all extra credit except This Quarter in Biochem bc I was like nah too much effort for 3 points.

TL;DR - Do the study questions on CCLE even though they are long, go to discussion (and maybe LA review if you can), DO EXTRA CREDIT. Alright but sometimes sassy professor, gives hard exams, but generous curve!!

Quarter Taken: Spring 2018 Submitted June 30, 2018 Grade Received: A-

Her curve is seriously generous. I scored 6% above the average on the first midterm, 2% below average on the second midterm, and 10% above average on the final. This was enough to get me an A minus in the class. It's important to get all the other easy points in the class. The extra credit she hands out really does help your grade. Spend a lot of time on Pymol for the Protein Assignment and try to take advantage of every extra credit opportunity. Another review said this earlier and it was that you can do average on the exams and still get an A if you do all the extra credit and it was true in my case. This class was not easy, and if you think it's easy you're doing it wrong. Be prepared to study so much for this class!!! Rewatch lectures, get your hands on past exams, pay attention to the study guides that she uploads. Good luck.

Quarter Taken: Winter 2018 Submitted April 21, 2018 Grade Received: A+

AVERAGE MIDTERM 1: 61/100
AVERAGE MIDTERM 2: 59/100
AVERAGE FINAL: (118/200) (59%)

FINAL SCORE: SOLID A

Her averages are usually pretty low.
There is SOOOO MUCH PARTIAL CREDIT AND EXTRA CREDIT!!
I studied for one day before each test and scored 62, 69, and 64, and got a solid A.
HOWEVER, I DID EVERY EXTRA CREDIT ASSIGNMENT. Some students don't bother with the CCLE extra credit surveys (totaled to 18 points in Winter 18), along with answering her 1-point extra credit survey on her final (I guess you could say this "wastes" about 10 minutes of your exam time, so it's up to you)

KEYS
YOU NEED TO AVERAGE 64 ON TESTS.
DO EVERY EXTRA CREDIT ASSIGNMENT (TOTAL 18 POINTS, THIS IS HUGE)
GET AT LEAST 30/35 ON PYMOL
GET 25/25 ON CLICKER

AVERAGE 64, OR A HIGH D IF YOU WANNA BE SAFE. YOU WILL SUCCEED.

TRUST ME, THE CURVE IS CRAZY.

DR TIENSON TOLD ME 42.2% OF MY CLASS GOT AT LEAST AN A-
AND SHE SAID IN FALL 17, EXACTLY 38% GOT AT LEAST AN A-

IF YOU WANT YOUR A, AVERAGE 64 BUT MAYBE AIM FOR A HIGH D ON EVERY EXAM.

DO THE EXTRA CREDIT

EASIEST CLASS

Quarter Taken: Winter 2018 Submitted April 6, 2018 Grade Received: A-

I really enjoyed taking 153A with Dr. Tienson... so much I'm taking 153B with her currently. If I were to give past-me a word of advice regarding Tienson's class, I would definitely stress the importance of the study questions. Those things are beyond important! Make sure you really understand the concept she's trying to ingrain in you because that's what she's going to be looking for in the exam. Make sure you get 100% on the in-class quizzes because those will be the easy points. Go to office hours whenever you can and do NOT underestimate the rigor of this class! The class is hard but not impossible! Good luck!

Quarter Taken: Fall 2017 Submitted March 31, 2018 Grade Received: A

Seems like my old post is getting buried, so I'm just reposting this again!

Selling 59 total past Midterm I, Midterm II, and Final exams for 30 dollars. The exams start from Spring 2012 and end at Winter 2016. Some exams have multiple forms. I got an A in this class just by doing all of these exams and Tienson's study questions. Tienson tends to have patterns in the types of questions she asks quarter to quarter. Contact me at [email protected] if interested.

Quarter Taken: Winter 2018 Submitted March 29, 2018 Grade Received: A

I am going to second anyone who has said that this class is TOUGH. I have heard horror stories from upperclassmen about this class, so I knew to take this class seriously from the start. With that being said, it's not impossible. You really just need to enter this class with the right mentality and *know* that you're going to do well. I'm not gonna lie, there were times that I felt so utterly defeated and didn't know if I would do well in this class. I was SHOCKED when I saw my final grade (believe me, I am so thankful for this class's curve because it is soooo generous) but it still took an unbelievable amount of hard work. Lemme break it down for ya.

LECTURES: Personally, I found her lectures to be quite helpful. Heather does a decent job at covering all the basic concepts in class, and I found the clicker Q's to be pretty helpful. However, she speaks waaaay too fast in class (I don't blame her because there is just so much material to cover), so I started to BruinCast every lecture after the first midterm, and I couldn't believe all the details that I missed during lecture!! I would highly recommend using BruinCast to extract all the key details from lecture because they show up again in study questions and exams.
DISCUSSION: Not mandatory. My TA wasn't amazing so I stopped going UNTIL I discovered Agape. BLESS HER SOUL. Her discussion sections were amazingly organized and helpful. She went over the discussion worksheets in such a methodical and organized fashion and related to the problems to the key concepts covered during lecture. I am forever indebted to her.
HOMEWORK: There is only one assignment (protein structure assignment using PyMOL) and I cannot stress the importance of starting early and checking your work! I spent a solid week on this assignment and still had to go to OH and check up with friends on how to do it. The assignment is worth 30 points, which contributes quite a bit to your final grade.
TEXTBOOK: Not required. Heather provides a PDF on CCLE. I never used it except for assigned reading to take the two online quizzes.
STUDY QUESTIONS: Do every single one of them. Aside from past exams, the study questions are the single best study tool that you have for this class. Do them the week that they're assigned! They pile on soooo quickly. Some weeks only have 20 questions, and others have 50 questions. You really don't wanna save all of them right before an exam because they are pretty time-consuming to go through.
QUIZZES: The in-class quizzes are a breeze because they're just memorization. You only get 5-10 minutes (depending on the quiz) at the beginning of class to do them, so know your stuff. Remember to brush up on the quiz content before midterms & finals because she expects you to know them for exams! There are two online quizzes on CCLE, which requires assigned textbook reading, so they're not as straightforward as the in-class ones. I think there are 110 points total for quizzes, but only 100 points count towards your grade, so there was some leeway if you forgot to study for one.
LA SESSIONS: I went to a weekly LA review session, which I didn't find that helpful. I did, however, attend all the review sessions before exams, and the LAs basically went over past exam questions, which was helpful!
EXAMS: Oh boy they were difficult... You can't just get away with memorization to do well on her exams. I didn't do so hot on the first midterm and had to reassess my studying habits. Some things that I did that helped me for subsequent exams: use BruinCast to get all the key details from lecture, start study questions EARLY, and take advantage of any practice midterms and final you can find. The final was significantly harder than the two midterms, so stay on top of the material! Also, I also am indebted to AK Lectures on YouTube- he goes over the key biochem concepts SO well!!

Some final words: if you're reading this at the beginning of the quarter, I BELIEVE IN YOU and you need to believe in yourself! Start your shit early because I know I did, and I still felt like I was pressed for time on studying. You can do anything you set your mind to. If you're reading this right after getting your midterm grades back, pick yourself back up because YOU GOT THIS. I got 68.5% on the first midterm and lost almost all hope in getting an A in the class, but I'm letting you know that is *still* possible. This class is difficult, but you get what you put in. Good luck, and GO BRUINS!

Quarter Taken: Winter 2018 Submitted March 28, 2018 Grade Received: A

Dr. Tienson does provide a lot of resources in this class for students to do well. Her study questions are very helpful since she's picky with her grading and likes you to answer things exactly the way she would answer them, so you need to familiarize yourself with the way she chooses to phrase things and also the concepts and ideas she likes and seems to repeat a lot and ask clicker questions on and emphasize during lecture because she's most likely going to want you to know those things for the exam. The material is not too difficult it's just very dense and she goes very fast in lecture. I found it very very helpful to relisten to every single lecture of hers, and take additional notes when I relistened to the lectures, it helped tremendously. After doing that I would start with the study questions. Don't fall too behind on those. Her practice exams are also helpful. Discussion sessions are not very helpful but the TA's and LA's themselves are so I would say go to office hours and review sessions as well as the LA weekly workshops. Repetition is really what gets you to succeed in the course, you have to really be familiar with the material. Also do the homework assignment ahead of time and the extra credit as well; don't leave things to the last minute with this class because it's time consuming and heavy enough as it is. That being said, an A is definitely manageable. Her curve is reasonable and generous and she does make it pretty clear what she expects you to know for the exams.

Quarter Taken: Winter 2018 Submitted March 27, 2018 Grade Received: A

My God this class was one of the most dense, time-consuming, life-draining classes I've taken yet. I'll try to break down the class in sections:
Tienson: Had better lecturers, I just couldn't pay attention to her during class but good thing Bruincast exists. I would sometimes relisten to some of the lectures and then it would make so much sense.

Grading: This class has 2 midterms, 1 final, couple quizzes, clickers, and a homework assignment. Pretty much got 100% on clickers, quizzes, and homework assignment. The first midterm was pretty bad as an average but I did well enough for an A. Same with the second midterm. The final was definitely really difficult but I did do above average.

Exams: The midterms are 50 min so you better hurry up. They reflect the questions on the study questions she posts weekly so just study those. The thing is, she's always behind so half the time, you wouldn't know what the hell the study questions were about because we haven't learned them yet. This is where TA office hours and Google really helped as I basically taught myself the material before Tienson got there in order to stay on top of the study questions.

TA: Without them, I definitely would not have gotten an A. Huge shoutouts to TAs Agape and Rachel. Take them if you can! Go to TA OH!

LAs: Didn't really utilize LAs or their workshops other than their review sessions before exams. They were alright but I found the TAs to be significantly better.

Final words: A lot of people kind of overhype this class to be "impossibly difficult". Don't get scared and already come into the class with a defeated mentality. About 20% of the class gets an A so it's not like this class is curved unfairly against students. The nature of biochemistry is just very dense and both mathematical and conceptual meaning there is no way to succeed in this class without buckling down and really grinding through problems and memorizing. Just as a reminder, you pre-meds should be preparing for this as it's going to be this dense and much faster in medical school for 2 years.

This class was by no means easy but was very interesting. I hated this class but at the same time I liked it. It's a very comprehensive class that encompasses basically all your lower division pre-reqs. I saw concepts from Chem 14A, B, C, D, CL, LS2 and LS3. Goodluck future students. Please try hard in this class. Don't pretend to "study" when you're actually just goofing off or passively skimming through study questions and then get salty that you didn't do well. You all have some degree of academic aptitude and discipline if you're a STEM major at UCLA. Use it.

Quarter Taken: Winter 2018 Submitted March 27, 2018 Grade Received: A

I need to start this review by saying her curve is SO GENEROUS. I got exactly average on the first midterm but was still able to pull an A in the class. While her study questions that pretty much everyone says are the most important thing, the best thing you can study for her midterms are her gradescope midterms. The study questions are a great way to know the concepts but a lot of times they are superfluous. The gradescope midterms tell you exactly what you should write for her tests. Also, since she posts her study questions that are really just an amalagamation of her past midterm questions, she obviously wouldn't put a lot of the same questions on the midterm or else her averages would be a lot higher, which is why you should put more emphasis on the gradescope midterms. For the final, since it was on Sunday, I didn't even have time to go over all the study questions not including after midterm two, so I just went through a bunch of past finals and I thought that was the best way to study and was a quicker way to solidify my concepts of stuff before final exam material. Even if you get past finals with a lot wrong answers, I think those were the best source of studying because since her final is much harder than her midterms, you can get familiar with the types of tricks and angles in which she asks different questions for the final. There ARE some patterns in her past finals. Unlike the previous review, her lectures along with her office hours aren't that helpful besides the clicker questions. It's a good idea to understand every single clicker question because they are a good way to understand big/important concepts. I didn't even bother bruincasting. The TAs Agape and Rachel saved my ass with the discussion worksheets along with the LA workshops which you should go every single week. I liked reading the textbook but I guess it wasn't completely necessary except for Michaelis-Menten which I think it's crucial to read that section in the textbook or else it's really difficult to understand that. Also, there's a word limit on some of her exam questions but honestly screw that because a lot of times they don't even take points off even if you go over the word limit, and if they do dock you, they only dock you one point at the most and that's better than just not writing enough. Lastly, I feel like this class was just disorganized because I didn't learn much from lecture, but instead felt like I had entire concepts shoved down my throat when going through her study questions.

1 of 7

Tags

  • Uses Slides
  • Is Podcasted
  • Appropriately Priced Materials
  • Tough Tests
  • Gives Extra Credit
  • Tolerates Tardiness
  • Participation Matters

Textbooks

iclicker+ student remote and REEF 6M Packaging
i-clicker
ISBN: 9781319149246
View on Amazon
ADS
Bruinwalk is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.

Report Review

Did this review contain...

There are errors in the report form.

Thank you for the report!

We'll look into this shortly.

It seems like you’re

using an ad blocker. :(


Bruinwalk is an entirely Daily Bruin-run service brought to you for free. We hate annoying ads just as much as you do, but they help keep our lights on. We promise to keep our ads as relevant for you as possible, so please consider disabling your ad-blocking software while using this site.

Thank you for supporting us!