Your body stores energy in the form of fat and other organic molecules. When your body needs extra energy, it breaks apart the molecules of fat to release that energy (sometimes called "burning fat"). That energy is used to power cellular reactions or is lost as heat. The total amount of energy used by your body or lost as heat equals the amount of energy the molecules of fat originally stored before breaking apart.   This process is an example of the _________law of thermodynamics.   A. first B. second

select all of the processes from below which describe changes which are independent of the path by which the change occurs. the elevation increase experienced by a traveller travelling from Grand Isle, LA to Denver, Coloradothe work generated by the body of an athlete as it metabolizes the sucrose in a cube of sugarthe heat generated by the body of a student during a chemistry examthe work accomplished in burning a gallon of gasolinethe energy evolved when a cube of sugar is oxidized to CO2(g) and H2O(g)the latitude increase experienced by a traveller travelling from Baton Rouge, LA to Anchorage, Alaskathe number of rotations the earth undergoes over a specified period of time

Rabbits' intestines help in the digestion of cellulose, which is a time-consuming and complex process. To digest cellulose, rabbits require enzymes produced by bacteria living in their intestines. These bacteria break down the cellulose into simple sugars that rabbits can digest. Which of the following is an accurate statement about the survival needs of both rabbits and the bacteria that live in the rabbits' intestines? Both the bacteria and rabbits get energy A from sugars, and both must eliminate wastes. Both the bacteria and rabbits get energy from sugars, but only rabbits need to eliminate wastes. Both the bacteria and rabbits need nutrients, but only rabbits need water. Only rabbits need nutrients and water; the bacteria do not need nutrients or water.

Humans and some other animals use evaporative cooling to help regulate body temperature. Which statement regarding evaporative cooling is true? Evaporative cooling is possible because of the high heat capacity of liquid water. Evaporative cooling has a cost: the organism must ingest water and ions that are lost during sweating. Body temperature decreases during evaporative cooling because the water molecules with the greatest kinetic energy leave. the surface of the skin.

Each ATP molecule contains about 1% of the amount of chemical energy available from the complete oxidation of a single glucose molecule. Cellular respiration produces about 38 ATP from one glucose molecule. What happens to the rest of the energy in glucose? It is stored as fat. It is converted to heat. It is used to make water from hydrogen ions and oxygen. It is released as carbon dioxide and water It is converted to starch.

After a meal that contains carbohydrates, blood glucose levels usually rise gradually as carbohydrates are digested and the resulting monosaccharides are absorbed into the bloodstream. Suppose you run a test on a human with no lactase production. You would provide a dose (e.g., 25 grams) of lactose and measure changes in blood glucose levels over the next three hours. Predict how blood glucose levels would change from fasting to three hours. Justify your response using the results from the above simulation.

If there is a shortage of glucose in the body, the body then utilizes fats as a source of ATP. Though ATP production from the metabolism of fats is significantly higher than carbohydrates, lipid metabolism is harmful for the long run. What is the eventual number of ATP molecules produced during the metabolism of lipids and why is using lipids as the primary energy source harmful? Write brief sentences.

What is a kilocalorie (kcal)? O Unlike 1 food calorie, this is the amount of energy needed to raise 1 kilogram of water by 1 degree Celsius. O The amount of energy needed to raise 1 kilogram of water by 1 degree Celsius. It is equal to 1,000 food calories. The amount of energy needed to raise 1 kilogram of water by 1 degree Celsius. It is also the same thing as 1 food calorie. O The amount of energy needed to raise 1 pound of water by 1 degree Celsius. It is also the same thing as 1 food calorie.

In the lactase enzyme simulation you conducted in Part 1 of this Nutrition Lab, you found that enzyme activity is dependent upon the pH of the environment. Coffee has a pH of approximately 5.0. Suppose you added lactase to a cup of coffee with milk. Would glucose be produced? Addition of lactase to a mixture of coffee and milk would yield ______ glucose than addition of lactase to plain milk. more the same amount of less

Match the following terms with their definitions carbohydrate breaking with water synthesis energy carrier molecule hydrolysis energy storage molecule enzymes making ATP without using oxygen or Kreb's cycle aerobic proteins that do work fermentation to build ATP ultimate electron acceptor oxygen using oxygen