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BIO 181 Exam 2 – 2025/2026 | 90+ Verified Questions & Answers | Cell Respiration, Immune System, Digestion, DNA Replication & Photosynthesis | Arizona State University

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This comprehensive exam guide features over 90 expertly verified and graded questions and answers designed specifically for BIO 181 Exam 2, aligned with the 2025/2026 curriculum at Arizona State University. The document covers a wide range of key topics in molecular and cellular biology, structured to reflect actual exam content and question formats encountered by students. Core topics include: Cellular respiration: glycolysis, the citric acid (Krebs) cycle, mitochondrial functions, ATP synthesis Immune system function: lymphatic pathways, B and T cells, MHC protein presentation, inflammation response Digestive system and metabolism: nutrient absorption, enzyme function, pH regulation, insulin pathways Molecular biology: DNA replication (leading/lagging strands, primase, Okazaki fragments), transcription and translation, RNA splicing Photosynthesis: light reactions, Calvin-Benson cycle, thylakoid membrane structures, Rubisco This resource is ideal for: Undergraduate students in introductory biology courses (BIO 181 or equivalent) Pre-med, nursing, biomedical science, and life sciences majors Students preparing for cumulative exams, quizzes, or standardized testing involving core biological concepts It supports efficient self-study and test-readiness by consolidating key facts, definitions, and mechanisms into a format that mirrors real ASU assessments, making it an indispensable tool for academic success in foundational biology. Keywords: BIO 181, glycolysis, mitochondria, ATP, citric acid cycle, immune system, lymph nodes, MHC, digestion, insulin, DNA replication, Okazaki fragments, RNA transcription, protein synthesis, photosynthesis, Rubisco, codons, antibodies, tight junctions, cell metabolism

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Uploaded on
September 16, 2025
Number of pages
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Written in
2025/2026
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ASU BIO 181 Exam 2 2025/2026 Exam
Questions and Verified Answers |
Already Graded A+



Specifically in a cell where does Glycolysis occur? - 🧠 ANSWER

✔✔Cytoplasm


T/F The cell does not need ATP to survive. - 🧠 ANSWER ✔✔False


Where is carbon dioxide produced? - 🧠 ANSWER ✔✔Mitochondrial matrix


T/F The citric acid/Kreb's cycle breaks down carbohydrates into CO2. - 🧠

ANSWER ✔✔True


T/F FADH2 results as one of the products of the citric acid cycle. - 🧠

ANSWER ✔✔True

, Specifically where in a cell does the citric acid/Kreb's cycle occur? - 🧠

ANSWER ✔✔Mitochondrial Matrix


Glycolysis requires the investment of two_________ in order to obtain a

gross output of four ________ . - 🧠 ANSWER ✔✔ATP, ATP


Does gravity have a role in some part of the lymphatic fluid flow back to the

circulatory system? - 🧠 ANSWER ✔✔Yes


T/F Natural killer cells are part of the specific immune system. - 🧠 ANSWER

✔✔False


T/F You should have your appendix removed whenever possible. - 🧠

ANSWER ✔✔False


How does the lymph fluid return from the legs to the circulatory system? - 🧠

ANSWER ✔✔A one way valve pushing it up, with the help of muscles

contracting around it.

If a macrophage endocytoses (i.e., eats) an antigen it can digest it and

present it on a ______________ Major histocompatibility complex protein

to a ______________. - 🧠 ANSWER ✔✔Class II, Helper T Cell

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