Enzymes (a) speed up reactions that would otherwise occur much more slowly. (b) spur reactions that would otherwise never occur. (c) provide energy for anabolic but not catabolic pathways. (d) are consumed during the reactions they catalyze.

2. Enzymes A) have highest affinity for the substrate B) have highest affinity for the product C) have highest affinity for the transition state D) None of the above Briefly explain:

Write the structures for the molecule that best fits the answer to the following:a) the final products in anaerobic fermentationb) a coenzyme used in glycolysis (not ATP)c) the structure of the reaction intermediate in the reaction of ATP and bicarbonate

The hydrolysis of ATP has a large negative Delta G under standard conditions, but ATP is still stable in solution because: ○ A) ATP and water have a lower entropy than the products ○ B) The ATP phosphates are able to ionize O C) There is a substantial resonance stabilization ○ D) The hydrolysis reaction can absorb energy from its surroundings ○ E) The hydrolysis reaction has a large activation energy

Which of the following statements is true concerning thermodynamics of reactions within a cell? a) Spontaneous reactions always consume energy b) Unfavorable reactions can be coupled to nonspontaneous reactions c) Compartmentalization can be used to drive up the concentration of substrates to force a reaction to occur d) All important reactions are spontaneous

1) Describe the change of Cis-aconitate to Isocitrate. 2) Are enzymes changed during a reaction they catalyze?  3) What does "induced fit" mean when talking about enzymes

ATP works by A) donating energy B) none of these answers is correct C) donating two negative charges of the hydrolyzed phosphate D) adding ATP to other molecules, such as proteins

Beta oxidation occurs during the breakdown of _______for fuel a) Amino acids b) Lipids c) Glucose

9) The diagram below represents events involved as energy is ultimately released from food. Food molecule within digestive system xxx X-XX cool wat Food molecule outside of body x-xx XX-X A) 1 B) 2 The enzyme amylase will affect the breakdown of carbohydrates, but it will not affect the break- down of proteins. The ability of an enzyme molecule to interact with specific molecules is most directly determined by the (1) shapes of the molecules involved (2) number of molecules involved (3) sequence of bases present in ATP (4) amount of glucose present in the cell 6 A^XXXX X Which row in the table below best represents the chain of Xs and letters A and Bin the diagram? X-X-X-X-X-X-X A and B (1) nutrient antibodies (2) nutrient enzymes (3) hemoglobin wastes (4) hemoglobin hormones C) 3 In the human body, oxygen is absorbed by the lungs and nutrients are absorbed by the small intestine. In a single-celled organism, this absorption directly involves the (1) nucleus (2) chloroplasts Portion of…

You are studying a metabolic pathway and are trying to decide if it is an anabolic pathway or a catabolic pathway. Which of the following would help diagnose this problem? A) Look for common intermediates. B) Look for ATP-requiring steps. C) Look for enzymes under allosteric regulation. OD) All of the above. OE) None of the above.