Ochem 1 Study guides, Class notes & Summaries

In this concept, we will discuss one class of biological polymers called lipids or fats. You might be familiar with this class of biopolymers, which are found in butters and oils. We will discuss saturated and unsaturated fats, and what those terms mean for the molecule's structure as well as its properties at room temperature. 1. Which of the following is a source of lipids?

Week 7 Concepts: Biochemistry LIPIDS In this concept, we will discuss one class of biological polymers called lipids or fats. You might be familiar with this class of biopolymers, which are found in butters and oils. We will discuss saturated and unsaturated fats, and what those terms mean for the molecule's structure as well as its properties at room temperature. 1. Which of the following is a source of lipids?  Sugar, fruits, and bread  Water  Steaks  Butter and oils ...

Final- 20536 - CHEM 1B (Introductory Organic and Biochemistry) 2023/24/Final- 20536 - CHEM 1B (Introductory Organic and Biochemistry) 2023/24

In this section, we explore the rules of energy that we observe in the universe. We see many examples of these laws in action on a day-to- day basis. You will learn how to compare and contrast exothermic and endothermic reactions as well as the first and second laws of thermodynamics.

UNE Biochem 1005 Unit 2 exam graded A+ 1. Pyruvate dehydrogenase kinase catalyzes a reaction that results in which of the following? The phosphorylation and inactivation of E1 subunit (pyruvate dehydrogenase complex 1. Which of the following intermediates is an allosteric activator of pyruvate kinase? a. Fructose 1.6 bisphosphate 1. Which of the following is the initial second messenger in the signaling cascade initiated by glucagon? a. cAMP 1. Hereditary fructose intolerance in caused by a ...

Snake venom's poison is actually: a) A collection of digestive enzymes b) Repertory toxins c) Paralysis toxins and red blood cell poisons d) All of the above e) None of the above correct answers a) A collection of digestive enzymes. Pepsin requires ____________ to become active. a) Low pH b) Partial denaturation of a protein c) Zymogen activation d) All of the above e) None of the above correct answers d) All of the above. Which of the following is released by the small intestin...

Which of the following reactions is commonly used to replenish intermediates of the citric acid cycle? correct answer: glutamate --> ketoglutarate Which of the following statements is true regarding the activity of the ribonuceltide reductase? correct answer: The enzyme is required to convert nucleotides from the ribose form to the deoxyribose form required for DNA synthesis A Southern blot with a probe (denoted as XXXX in the figure) to DNA isolated from an individual who has both a ...

Control of Fatty Acid Synthesis vs. Oxidation correct answer: When Insulin is HIGH --> fatty acid synthesis occurs When Glucagon is HIGH --> lipolysis, fatty acid B-oxidation, ketogenesis occur **These never happen at the same time! Lipolysis correct answer: Process of releasing free fatty acids from triacylglycerols stored in the adipose IN THE FASTED STATE Steps of lipolysis correct answer: 1) Hormone Sensitive Lipase: activated by glucagon and epinephrine TAGs are hydroly...

1. Pyruvate dehydrogenase kinase catalyzes a reaction that results in which of the following? correct answer: The phosphorylation and inactivation of E1 subunit (pyruvate dehydrogenase complex 1. Which of the following intermediates is an allosteric activator of pyruvate kinase? correct answer: a. Fructose 1.6 bisphosphate 1. Which of the following is the initial second messenger in the signaling cascade initiated by glucagon? correct answer: a. cAMP 1. Hereditary fructose intoleranc...

Somatostatin reduces the secretion of both glucagon and insulin through which of the following mechanisms? a. Somatostatin activates an activator G-protein b. Somatostatin activates MAPK cascade c. Somatostatin activates an inhibitory G-protein d. Somatostatin uses Ca+2 as a downstream signal correct answer: c. Somatostatin activates an inhibitory G-protein Insulin mediated glucose uptake by muscle and adipose tissue is a result of which of the following mechanisms? a. Translocatio...