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 from sugars, and both must eliminate A wastes. Both the bacteria and rabbits get energy from sugars, but only rabbits need to eliminate wastes. B Both the bacteria and rabbits need nutrients, but only rabbits need water. Only rabbits need nutrients and water; the D bacteria do not need nutrients or water.

Autotrophic organisms such as plants, algae, blue green alga, and chemosynthetic bacteria are rarely mentioned in pathology because they do not cause disease in other types of living things. What is it about the metabolic machinery of autotrophs that makes them unlikely to cause disease in people?

Different enzymes that catalyze the same reaction, although may be found in different tissues, are known as Cofactors Apoenzymes Zymogens Isoenzymes

The main source of sugars that are consumed by organisms that carry out cellular respiration is: Animals Bacteria Fermentation Photosynthesis

In the discussion box below, list your answer to the question and justify your answer. Also describe your thought process to how you answered the question. Lactic acid bacteria primarily use lactose as an energy source, but they also can use glucose, although using glucose for energy is a less efficient process than using lactose. Suppose that lactic acid bacteria are added to two solutions: Solution A contains only lactose and solution B contains only glucose. Both solutions are initially at pH 7. What will likely happen in these two solutions? The pH of solution A will become alkaline faster than solution B The pH of solution B will become alkaline faster than solution A The pH of solution A will become acidic faster than solution B The pH of solution B will become acidic faster than solution A

Which of the following enzymes is responsible for breaking a1-4 glucose bonds and forming a1-6 glucose bonds? glycogen phosphorylase branching enzyme glycogen synthase debranching enzyme

Brown and Goldstein won the Nobel Prize for discovering the molecular basis of familial hypercholesterolemia (FH).  The key experiment that led to the breakthrough was that cells from FH patients responded to LDL by increasing cholesterol biosynthesis.   True or False

Why is there no blue color with Iodine when amylose reacts with saliva? Amylase in saliva causes the amylose chain to uncoil so Iodine is not trapped. Amylase in saliva reacts with iodine making it unable to complex with the amylose coil. Amylase in saliva causes the amylose chain to break into short chains and then into glucose which does not coil and so does not trap iodine. Amylase in saliva will replace the I2 in the amylose coil and so remove the color.

We eat foods containing sucrose (table sugar), lactose (milk sugar), and cellobiose (disaccharide of cellulose in plants). How many net moles of ATP per mole disaccharide do humans generate from the disaccharides sucrose, lactose, and cellobiose using the glycolytic pathway? Osucrose: 4 ATP; lactose: 2 ATP; cellobiose: 2 ATP Osucrose: 2 ATP; lactose: 4 ATP; cellobiose: 2 ATP Osucrose: 2 ATP; lactose: 2 ATP; cellobiose: 0 ATP sucrose: 6 ATP; lactose: 2 ATP; cellobiose: 0 ATP sucrose: 4 ATP; lactose: 4 ATP; cellobiose: 0 ATP

In living cells, true equilibrium is dangerous because if the rate of a forward reaction is equal to the rate of the reverse reaction, a wasteful cycle is produced during which the cell gains no new nutrients.  In this situation, the cell will eventually die.  Therefore, organisms have many ways of ensuring that reactions move only in the forward direction.  One of these means is control over reactant concentration. The Citric Acid Cycle is a series of reactions that occur in eukaryotic cell mitochondria which are essential for providing energy to living cells.  During one of these reactions, a molecule known as oxaloacetate is combined with acetyl coenzyme-A to produce citrate.  Normally, the concentration of oxaloacetate in mitochondria is very low.  If the cell is in need of more energy and the concentration of oxaloacetate increases, what will happen to the direction and of this reaction?  How do you suppose this affects the overall amount of energy product produced?