BIOA02H3 Study Guide - Midterm Guide: Specific Dynamic Action, Ectotherm, Resting Metabolic Rate

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BIOA02H3 Full Course Notes

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Overview of cellular respiration: metabolism of glucose begins with glycolysis in which glucose is converted to pyruvate. Pyruvate is oxidized to produce acetyl-coa which then enters the krebs cycle, where pyruvate is converted into a series of intermediate compounds with the result being the production of 2 atp, fadh, and nadh. Fadh and nadh enters the etc which leads to the production of more atp. The use of energy for biosynthesis, maintenance, and external work is inefficiency, leading in the production of heat (metabolic heat: metabolic rate an animal"s rate of energy consumption. It can be measured directly as the amount of heat produced, or indirectly by looking at oxygen consumption and co2 production. Measuring metabolic rate with direct calorimetry: direct calorimetry measures heat production and is a direct measurement of metabolic rate. Lavoisier"s direct calorimetry involves placing an animal within a chamber that is in turn surrounded by a larger chamber full of ice.

Related Questions

Acetyl CoA is the beginning of a metabolic pathway that produces most of the NADH and FADH for ATP production. When you starve, which of the following will produce the most Acetyl CoA?

Protein, carbohydrates, and lipid metabolism all produce the same amount

Free Oxygen radicals

Protein metabolism

Lipid metabolism

Carbohydrates are broken down into glucose monomer and dimers. Glucose is converted to pyruvate and then to acetyl CoA. Acetyl CoA enters the citric acid cycle and is broken down to CO2 and in the process produces NADH & FADH2, which is utilized in the generation of ATP via the electron transport chain. Why does the cell go through this elaborate pathway to convert glucose to carbon dioxide and water and in the process generate ATP? Why not use a simpler and shorter mechanism to breakdown glucose?

1) The complete catabolism of glucose results in the generation of ___________ ATP.

	1.	29
	2.	100
	3.	20
	4.	50

2) The presence of _____________________ is a determinant factor on whether pyruvate continues its metabolism into the Krebs cycle.

3) As humans we breath in air that contains oxygen and breath out carbon dioxide . The oxygen we consume it is used in the metabolism of glucose in the ________________________.

electron transport chain as an acceptor of electrons

anaerobic respiration

citric acid cycle

4.conversion of pyruvate to acetyl-CoA

4) A glucose molecule can generate energy, but only if sufficient amount of energy is invested to initiate the chemical reactions that are involved in the catabolism of the glucose molecule.

True

False

5) The ___________________ of glycogen from individual/separate molecults of glucose is an ___________________ reaction.

	1.	breakdown, endergonic
	2.	breakdown, exergonic
	3.	synthesis, endergonic
	4.	synthesis, exergonic

BIOA02H3 Study Guide - Midterm Guide: Specific Dynamic Action, Ectotherm, Resting Metabolic Rate

BIOA02H3 Full Course Notes

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