Chapter 9, Problem 5Q

Assuming that a bird species living in hot climates has a mass of 45 grams, calculate the minimum glucose mass required to fly to a hill 125 meters above sea level? (The amount of changeinGibbsenergycorrespondingtotheoxidationof1.0molofGlucose(liquid) moleculeto carbon dioxide gas and water at 25 ° C is -2808 kJ.)

Relating free-energy change and emf?

2. Three-layer of wedding cake approximately weights 500grams has 425g carbohydrates, 50g fats and 25g protein. Calculate the total energy of food.

Measuring food consumption and excretion A 22g field mouse consumed 5g of mouse chow that had an energy content of 2Cal/g in 24hours andduring that time produced urine and feces with an energy content of 6Cal.a. What was the amount of energy that the mouse used that day?b. What is the field mouse’ mass specific metabolic rate in J/g*hr?

Absorbed from the intestines into the blood, nitrites (NO2-) interact with the hemoglobin of the blood and block its respiratory function, turning part of the hemoglobin (HbFe2+) into methemoglobin (HbFe3+), unable to transfer oxygen from the lungs to tissues. With the formation of a large amount of methemoglobin, oxygen starvation of tissues occurs, which can cause damage to the central nervous system. 10 to 20 % - of methemoglobin (HbFe3+) - asymptomatic cyanosis, 20 to 50% of methemoglobin (HbFe3+) -hypoxia develop, > 50% of methemoglobin (HbFe3+) - the person will die. The body weight of the average person is 60 kg. Blood mass averages 8% of a person’s body weight; blood density ρ = 1,050 g/cm3, the hemoglobin (Hb) content in it is 14 g per 100 ml. molecular weight of hemoglobin 65-68 kg/mol (use 68 kg/mol for calculation). Assume that 1 mole of hemoglobin reacts with one mole of nitrite ion to form 1 NO molecule: HbFe2+ + NO2- → HbFe3+ + NO will a 290 mg dose of sodium nitrite…

O2 consumed by an individual (CO2 exhaled in liters)/(O2 inhaled in liters). It is used as a measure of basal metabolic rate and can indicate which types of molecules are being used by a person to produce energy.  For glucose (C6H12O6), this value is 1 as the equation for the complete oxidation of glucose is: C6H12O6 + 6 O2 → 6 CO2  + 6 H2O If 4 of the CO2 molecules are produced by the citric acid cycle, which pathway or enzyme step is likely responsible for the production of the other 2 CO2 molecules produced during the complete oxidation of glucose by metabolism? a) Gluconeogenesis b) Glycolysis c) Beta Oxidation d) Urea Cycle

need help with energy levels

4. A particular food contains only fat, carbohydrates and protein and has a total of 388 Calories.If 40% of the total Calories comes carbohydrates and 25% of the total Calories comes fromprotein, how many grams of a) carbohydrates b) protein and c) fat are present in this food iteM?

Define the term Energy Transfer?