Online Biochemistry for Veterinary School: What Counts and What Doesn’t- The upper-division rule, the metabolism requirement, and how to choose a biochemistry course that VMCAS programs will actually accept
Biochemistry is the prerequisite that derails veterinary school applications most often at the final step. It sits at the end of the science prerequisite sequence — gated by organic chemistry, evaluated as upper-division coursework, and required at nearly every US veterinary college. By the time applicants reach biochemistry, they’ve completed two or three years of prerequisite work, invested significant tuition, and built their application timeline around getting this last course done. So when an admissions office rejects a biochemistry course as too low-level, missing metabolism content, or taken at the wrong institution type, it derails the entire application cycle.
The problem is that biochemistry has more acceptance restrictions than any other vet school prerequisite. The upper-division rule. The four-year institution rule. The metabolism content rule. The organic chemistry prerequisite-of-the-prerequisite rule. And the specific-course-rejection lists that some schools publish. This article walks through each of those rules, explains how to choose a biochemistry course that meets them, and shows how to verify acceptance before you enroll — not after you’ve already paid tuition.
| PrereqCourses.com offers online biochemistryCHEM 330 Biochemistry I is available through PrereqCourses.com’s partnership with Upper Iowa University — 3 credits, $675, self-paced with monthly enrollment, fully online. Upper Iowa University is regionally accredited by the Higher Learning Commission and grants the course at the 300-level on an official UIU transcript. This article explains how to verify the course meets each of your target vet schools’ biochemistry requirements before you enroll, and how to sequence it alongside the other prerequisites in your application. Enroll in CHEM 330 Biochemistry I or browse the full course catalog. |
Vet school biochemistry requirements look superficially simple — “one semester of biochemistry, three credit hours” — but the acceptance criteria are layered. Most rejections trace back to one of four specific rules. Understanding each rule and how strictly your target schools enforce it is the difference between completing biochemistry once and having to retake it.
The vast majority of US vet schools require biochemistry at the upper-division level — typically defined as 300/3000-level coursework or higher in the institution’s catalog. UC Davis is explicit on this point: all upper division courses must be completed at the upper division level at a four-year college. They may not be completed at a community college. Iowa State requires upper-level (junior or senior) course with organic chemistry as a prerequisite. Cornell requires at least 30 of 60 prerequisite credits to be upper-division at a four-year institution. This rule alone eliminates most community college biochemistry courses and many survey or introductory biochemistry courses that are labeled as 200-level. PrereqCourses.com’s CHEM 330 Biochemistry I is granted at the 300-level on the Upper Iowa University transcript, which satisfies this rule at programs that accept upper-division coursework from any regionally accredited four-year institution.
The biochemistry course must require organic chemistry as its own prerequisite. LSU states this directly: this course MUST have Organic Chemistry as a prerequisite. Biochemistry courses that do not require an understanding of Organic Chemistry are not approved. This rule exists because vet schools want to confirm that students have the chemistry foundation needed to understand metabolic pathways, enzyme kinetics, and protein structure at the level the DVM curriculum will demand. A biochemistry course that doesn’t require organic chemistry typically isn’t covering this material at the depth vet schools need. Verify the course description and prerequisites of any biochemistry course before enrolling — including PrereqCourses.com’s CHEM 330 — to confirm the organic chemistry prerequisite is listed and matches your target school’s expectations.
Iowa State requires biochemistry to be metabolic biochemistry and cannot be biochemistry of proteins and enzymes alone. UC Davis specifies biochemistry with metabolism — note the parenthetical: if the biochemistry course is offered in a two semester sequence, both may be needed to meet the content requirement. This is the rule most commonly missed by applicants. A one-semester biochemistry course that covers proteins, nucleic acids, and enzymes — but stops short of glycolysis, the citric acid cycle, oxidative phosphorylation, and lipid metabolism — will be rejected at metabolism-focused programs. Cornell specifies content explicitly: carbohydrates, lipids, and metabolism (glycolysis, citric acid cycle, oxidative phosphorylation, urea cycle, etc.). Always review the syllabus of any biochemistry course you’re considering and confirm metabolism content is included. If a target school like UC Davis requires a two-semester sequence for full content coverage, plan for both semesters.
Upper-division biochemistry must be taken at a regionally accredited four-year college or university. This is more restrictive than the rules for general chemistry or biology, which most vet schools accept from community colleges. UC Davis, Iowa State, Cornell, Penn, and Colorado State all enforce this. Community college biochemistry courses — even when labeled at the 200-level — are typically not accepted at competitive vet schools because the institution itself doesn’t grant upper-division credit. Upper Iowa University, which delivers PrereqCourses.com’s biochemistry course, is a regionally accredited four-year institution under the Higher Learning Commission, which satisfies this rule at programs that accept online coursework from accredited four-year institutions.
| The four-rule testBefore enrolling in any biochemistry course, verify all four:Course is listed at 300-level or higher (upper-division) in the institution’s catalogCourse catalog lists organic chemistry as a prerequisiteCourse covers metabolism — glycolysis, citric acid cycle, oxidative phosphorylation, lipid metabolismInstitution is a regionally accredited four-year college or university If any of these is missing, the course will be rejected at most competitive vet schools — even if a less-strict school might accept it. Plan to the strictest rule. |
The table below summarizes biochemistry requirements at a representative cross-section of US veterinary colleges. The credit hours look similar across schools, but the content rules vary materially. Always check the most current prerequisite page on each school’s website before enrolling — these requirements update periodically.
| Vet School | Credits & Level | Notable rules |
|---|---|---|
| UC Davis | Biochem with metabolism, upper division, 4-year college only | Two-semester sequence may be required for content |
| Cornell | One semester biochemistry, no lab required | Specific content: glycolysis, TCA cycle, oxidative phosphorylation, urea cycle |
| Iowa State | 3 sem cr, upper-level junior/senior, no lab | Must be metabolic biochemistry; OChem prerequisite required |
| Colorado State | Required; 10-year recency window | Must be within 10 years of matriculation |
| LSU | 3 semester credits, OChem as prereq | Has explicit rejection list for non-approved courses |
| Tufts (Cummings) | One semester from chem, biochem, or biology dept | Online courses require pre-approval from admissions |
| Penn Vet | Required; accepts online from accredited institutions | Most permissive policy among top programs |
| Kansas State | Within 6-year recency window for upper-division sciences | Online accepted from accredited institutions |
Three patterns to notice. First, biochemistry recency rules are stricter than for lower-division sciences — six years at Kansas State, ten years at Colorado State and LSU. Second, content rules vary: Cornell wants metabolism content; Tufts wants a chemistry, biochemistry, or biology department to be the home of the course. Third, the institution type matters more than for any other prerequisite — UC Davis’s prohibition on community college biochemistry is the single most common reason career-changer applicants find their planned course is unusable.
| Specific biochemistry courses LSU rejectsLSU publishes an unusual level of detail about which biochemistry courses are NOT approved. These are real, current examples from the LSU School of Veterinary Medicine prerequisite page:• BIOL 240 Elements of Biological Chemistry at American Public University• BIOL 40357 Biochemistry at UC San Diego Extended Studies• BIOL 2083 The Elements of Biochemistry (LSU’s own non-approved course) Both of the rejected online courses are likely advertised to vet school applicants as “biochemistry for prerequisites.” Both fail LSU’s organic-chemistry-prerequisite rule. The lesson: course titles that include the word “biochemistry” are not sufficient. Read the course description, prerequisites, and credit level before enrolling — and confirm directly with target schools. |
The following are the providers most commonly used by vet school applicants completing biochemistry online, with the structural details that matter for VMCAS acceptance.
PrereqCourses.com‘s biochemistry offering is CHEM 330 Biochemistry I, delivered through its partnership with Upper Iowa University. Three credits, $675, fully online, self-paced with monthly start dates. Upper Iowa University is a regionally accredited four-year institution under the Higher Learning Commission, and the course is granted at the 300-level on the official UIU transcript. Course design is assignment-based with included e-textbooks. The advantages for vet school applicants: monthly enrollment lets you start without waiting for a semester, self-paced scheduling fits around work or other prerequisites, and the cost is substantially lower than most four-year online biochemistry options. Verify the specific course description against each of your target schools’ rules — particularly the organic chemistry prerequisite and metabolism content — before enrolling.
UNE Online offers a four-credit online biochemistry course that is upper-division, lists organic chemistry as a prerequisite, and covers metabolism. UNE is regionally accredited and a four-year institution. The course is structured in semester-length terms, has instructor support, and the credits appear on an official UNE transcript. Caveat: a few schools (Oregon State has historically rejected UNE BB 350) require the higher-level BB 450 sequence. Verify the specific UNE course number your target schools accept before enrolling. Higher tuition than PrereqCourses.com but a useful alternative when a school requires a four-credit course specifically.
UC Berkeley Extension offers an online biochemistry course that is widely accepted, regionally accredited, and structured as a 6-month self-paced course. Berkeley’s name carries weight with admissions committees, and the upper-division designation is unambiguous. The trade-off is course depth — applicants have noted variable instructor quality, and the content rigor depends on the specific instructor assigned to the section.
Doane University’s online biochemistry is regionally accredited, semester-based, and upper-division. Widely used by post-bac applicants. NC State offers online biochemistry through its Office of Distance Education — upper-division, top-tier research institution, NC State transcript. Both are acceptable alternatives if your timeline is semester-based rather than self-paced.
UC Davis prohibits it explicitly. Iowa State, Cornell, and Penn all require biochemistry at a four-year institution. The handful of vet schools that may accept community college biochemistry typically still require it to be labeled upper-division — a designation most community colleges don’t grant. For career changers near a community college that offers biochemistry at the 200-level, the course will likely need to be retaken at a four-year institution, which adds an entire term to the prerequisite timeline.
| Schools to confirm online biochemistry acceptance with before enrolling• UC Davis — strict on four-year institution and metabolism content; may require two-semester sequence• Cornell — strict on metabolism content; verify your course covers TCA cycle and oxidative phosphorylation• Iowa State — verify upper-division designation and OChem prerequisite• LSU — confirm course is not on their non-approved list; check OChem prerequisite explicitly• Tufts (Cummings) — requires pre-approval from admissions for online courses• Oregon State — historically rejects UNE BB 350; requires BB 450-452 series Email each program directly with the specific course code and institution before you enroll. Save the written confirmation. |
Biochemistry has the deepest prerequisite chain of any vet school requirement. General chemistry must come before organic chemistry, organic chemistry must come before biochemistry, and biochemistry typically comes last in the science sequence. Career changers who plan this incorrectly — by trying to fit biochemistry earlier in their schedule, or by skipping the organic chemistry prerequisite — find themselves rejected from enrollment in the biochemistry course itself, or worse, completing a biochemistry course that the target vet school then refuses to count.
General chemistry is the entry point for the chemistry sequence. If your general chemistry was taken more than five years ago, refreshing it is the most leveraged decision in the entire prerequisite sequence — it sets up the organic chemistry success that determines whether biochemistry is even possible. PrereqCourses.com offers General Chemistry I and General Chemistry II with lab through Upper Iowa University with self-paced monthly enrollment.
While general chemistry is in progress, the foundational biology requirement and supporting prerequisites can run in parallel because none of them depend on the chemistry sequence. General Biology I, General Biology II with lab, microbiology, and statistics are all available through PrereqCourses.com. For working career changers, completing two of these per quarter while general chemistry is also in progress is realistic and shortens the total timeline by 9 to 12 months versus a strictly serial approach.
Once general chemistry is complete and recent, enroll in organic chemistry at an accredited online provider (UNE Online is the most common choice for vet applicants) or at a local community college if your target schools require an in-person lab. Plan for 15 to 20 hours per week of dedicated study. Most online organic chemistry is structured as a one-semester course; the full sequence (Organic I + Organic II) takes two semesters.
Biochemistry follows organic chemistry by one term at minimum. This is not a sequencing preference — it’s an enrollment requirement at most institutions, and it’s the rule that makes biochemistry the right answer at vet schools like LSU. The biochemistry course must explicitly require organic chemistry as a prerequisite. PrereqCourses.com’s CHEM 330 Biochemistry I is the option to consider for applicants targeting programs that accept online upper-division coursework from accredited four-year institutions, particularly when you want self-paced monthly enrollment rather than waiting for a semester start. UNE Online, UC Berkeley Extension, Doane, and NC State are the main semester-based alternatives, particularly when target schools require a four-credit course or a two-semester sequence.
Before VMCAS opens in May, email the admissions office of every school on your target list with the specific biochemistry course code, institution, credit hours, prerequisites, and a syllabus link if available. Ask for written confirmation that the course will count. This is the step that separates applicants who get accepted from applicants who get rejected on a technicality after the application has already been filed. For schools that publish non-approval lists (like LSU), verify your specific course is not on the list. VMCAS application materials are available through AAVMC.
For career changers, biochemistry is the prerequisite that most often determines whether the application cycle works or has to be delayed. Three principles apply specifically to non-traditional applicants returning to vet school after time in another field.
Career changers often try to fit biochemistry earlier in their sequence — sometimes because they’re eager to make visible progress on the upper-division coursework, sometimes because they see biochemistry as a single course rather than as the endpoint of a chemistry chain. This is the planning mistake that most often produces a wasted course. Even if you can enroll in biochemistry without organic chemistry (some institutions don’t enforce prerequisites strictly), the vet school admissions office will check whether your transcript shows organic chemistry completed before biochemistry. If not, the biochemistry won’t count.
The recency rule for biochemistry is stricter than for lower-division sciences. Kansas State enforces six years; Colorado State and LSU allow ten years. If your biochemistry was completed during an undergraduate degree more than a decade before matriculation, almost every vet school will require a retake. A career changer with old biochemistry on the transcript should plan the retake into the prerequisite sequence from the start, not discover the recency rule after applying.
Because biochemistry comes last in the science sequence, the year or two before you reach it can be used to complete every other accredited online prerequisite. Browse the PrereqCourses.com catalog to plan this sequence. By the time you enroll in biochemistry, all of the surrounding requirements should be complete or in progress — biology, general chemistry, microbiology, statistics — so that biochemistry can receive your full weight of attention.
Most US vet schools do not require a biochemistry lab. Cornell, Iowa State, and UC Davis all accept lecture-only biochemistry, which is why most online biochemistry providers — including PrereqCourses.com’s CHEM 330 Biochemistry I — don’t include a separate lab component. A handful of programs prefer a lab when available but don’t require it. Check each target school directly, but for most applicants, lecture-only is sufficient.
Usually not. Most accredited biochemistry providers list organic chemistry as a strict prerequisite, meaning organic chemistry must be completed before enrollment. Some institutions allow co-enrollment if you have completed Organic Chemistry I, but this varies. Even where co-enrollment is technically possible, vet schools evaluate your transcript by completion date — if biochemistry shows a completion date before organic chemistry, the prerequisite rule fails on review.
If your biochemistry course was offered through a biology, nutrition, or general studies department that doesn’t require organic chemistry, most competitive vet schools will not accept it. LSU explicitly lists this as a rejection criterion. The remedy is to retake biochemistry at a provider that does require organic chemistry — PrereqCourses.com’s CHEM 330, UNE, UC Berkeley Extension, and most four-year institution biochemistry courses meet this requirement.
CHEM 330 Biochemistry I is delivered self-paced through Upper Iowa University, with monthly enrollment start dates. Students can complete the course as quickly as their schedule allows. Plan for 15 to 20 hours per week of study time; at that pace, completion in a single quarter is realistic for most students. The self-paced format is the main differentiator from semester-based providers like UNE Online or UC Berkeley Extension.
Admissions committees evaluate the transcript — institution accreditation, course level, credit hours, and grade. When a course appears on an official transcript from a regionally accredited four-year institution like Upper Iowa University, the delivery format is not visible to the committee and isn’t a factor in evaluation. The relevant question is whether the course meets the four rules described earlier in this article. If it does, it counts; the pace at which it was completed isn’t part of the evaluation.
Online biochemistry is accepted at most US veterinary colleges when it meets four criteria: upper-division designation, organic chemistry as a prerequisite, metabolism content, and a regionally accredited four-year institution. PrereqCourses.com’s CHEM 330 Biochemistry I, delivered through Upper Iowa University, is granted at the 300-level on the official UIU transcript and is one of the most cost-effective options for vet school applicants completing biochemistry online. UNE Online, UC Berkeley Extension, Doane, and NC State are the main semester-based alternatives, particularly for applicants targeting programs that require a four-credit course or a two-semester sequence. Community college biochemistry is generally not accepted at competitive vet schools because the institution itself doesn’t grant upper-division credit.
Verify acceptance with target vet schools before you enroll in any biochemistry course. Save the written confirmation. This single step protects the entire investment of your prerequisite sequence.
Browse the PrereqCourses.com course catalog to view CHEM 330 Biochemistry I and the supporting prerequisites available through Upper Iowa University, and consult the AAVMC Veterinary Medical School Admissions Requirements (VMSAR) for the authoritative prerequisite list at each US veterinary college.
