Pyruvate decarboxylation - Study guides, Class notes & Summaries

Describe and explain the steps in the light dependent reaction of photosynthesis 1. Photoionisation: light reaches chlorophyll in psii, which is absorbed by an electron, which becomes excited and moves to a higher energy level. 2. The electron passes to a carrier protein in the thylakoid membrane, and is passed down a series of carrier molecules called an electron transfer chain. 3. As the electron moves down, energy is lost from the electron and is released as atp. 4. The loss of elect...

What is the proteome of the cell? correct answer: the full complex of proteins that can be produced using genetic material and post translational modifications What are some example of post translational modifications? correct answer: phosphorylation (signalling) GPI anchor (PM proteins) O-glycans (nuclear and cytosolic proteins) polyubiquitination (can induce protein degredation) How can you watch the purification of recombinant poly-His tagged GFP? correct answer: use Ni2+ immobili...

All of the compounds represent different metabolites of pyruvate except: A. Acetyl-CoA B. Alanine C. Glutamate D. Lactate E. Oxaloacetate C. Glutamate Signal transduction involving glucagon has which of the following as a second messenger? A. Ca^2+ B. cAMP C. cGMP D. calmodulin E. inositol triphosphate (IP3) #Examify | #OnlineExams | #TestPrep | #StudyResources | #AcademicSuccess | #ExamPreparation | #QuizTime | #LearningTools | #Education | #StudentSupport Examify | Smart Gra...

DAT Biology Final Exam Study Set 2024/2025 with Verified Q&A Carotenoids - CORRECT ANSWER-lipid derivatives, produce pigments in plants and animals , An accessory pigment, either yellow or orange, in the chloroplasts of plants. By absorbing wavelengths of light that chlorophyll cannot, carotenoids broaden the spectrum of colors that can drive photosynthesis. Porphyrins - CORRECT ANSWER-lipid derivatives, a group of light-sensitive, pigmented, ringed chemical structures that are requi...

Vitamin B1 (thiamine) - Deficiency - Impaired glucose breakdown p ATP depletion worsened by glucose infusion; highly aerobic tissues (eg, brain, heart) are affected first. In alcoholic or malnourished patients, give thiamine before dextrose to reduce risk of precipitating Wernicke encephalopathy. Diagnosis made by increase in RBC transketolase activity following vitamin B1 administration Vitamin A (retinol) - Excess - Acute toxicity—nausea, vomiting, vertigo, and blurred vision. Chronic t...

Medical Biochemistry Final Exam Questions With 100% Correct Answers Which product is formed due to the result of anaerobic glycolysis? - answerLactate - anaerobic glycolysis is the transformation of glucose to lactate when limited amounts of oxygen are available Which substrate is extracted from the microenvironment resulting in increased proliferation of cancer cells? - answerGlucose - one of the hallmarks of cancer cell development is the increased dependence on glucose to fuel aerobic ...

Medical Biochemistry Final Exam Questions With 100% Correct Answers Which product is formed due to the result of anaerobic glycolysis? - answerLactate - anaerobic glycolysis is the transformation of glucose to lactate when limited amounts of oxygen are available Which substrate is extracted from the microenvironment resulting in increased proliferation of cancer cells? - answerGlucose - one of the hallmarks of cancer cell development is the increased dependence on glucose to fuel aerobic ...

Medical Biochemistry Final Exam Questions With 100% Correct Answers Which product is formed due to the result of anaerobic glycolysis? - answerLactate - anaerobic glycolysis is the transformation of glucose to lactate when limited amounts of oxygen are available Which substrate is extracted from the microenvironment resulting in increased proliferation of cancer cells? - answerGlucose - one of the hallmarks of cancer cell development is the increased dependence on glucose to fuel aerobic ...

MCAT Biology Diagnostic Exam 1A Questions and Answers Define spontaneous reaction - Correct Answer️️ -exergonic Vmax is determined by - Correct Answer️️ -enzyme concentration What type of reaction most commonly creates polymers from macromolecules - Correct Answer️️ -dehydration synthesis Most common process by which enzyme activity is regulated - Correct Answer️️ - negative feedback loop In cellular respiration, what acts as the final electron acceptor if O2 is not avail...

Lehninger biochem test bank 1. Which of the following is not true of the reaction catalyzed by the pyruvate dehydrogenase complex? A) Biotin participates in the decarboxylation. B) Both NAD+ and a flavin nucleotide act as electron carriers. C) The reaction occurs in the mitochondrial matrix. D) The substrate is held by the lipoyl-lysine "swinging arm." E) Two different cofactors containing —SH groups participate. - ANS A 2. Which of the below is not required for the ox...