lizzyhearts
14.07.2020 •
Biology
In the active site of the enzyme lotzase, a mutation of lysine 132 toaspartic acid causes a loss of lotzase function. Lotzase is most catalytically active at pH 7. Which is the following is the best reason why this might occur?
a. a negative charge is needed for substrate binding.
b. a positive charge is needed for substrate binding.
c. a general acid is needed for catalysis to occur.
d. more than one of the following can be a good reason.
Solved
Show answers
More tips
- C Computers and Internet Connecting Your TV to Your Computer: Easy and Fast...
- L Leisure and Entertainment How to Make a Crab Trap in Just a Few Minutes...
- H Health and Medicine How Much Does Abortion Cost? Expert Answers and Insights...
- S Sport How to Build Arm Muscles? Effective Exercises and Tips...
- H Health and Medicine When can it be said that a person has a normal pulse?...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- F Family and Home Why Having Pets at Home is Good for Your Health...
- H Health and Medicine How to perform artificial respiration?...
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
Answers on questions: Biology
- B Biology Alpha particles used in the Gold foil experiments are Helium atoms that__? 1. Have no charge2.have no negative particle3.has lost all its neutrons4.have no positive charges...
- B Biology List 5 disorders that affect female reproductive system an discuss them...
- B Biology Which of the following organelles is less affected by a lipid solvent ? 1/mitochondrion ,2/ribosome, 3/lysosome ,4/plastid...
- B Biology Sa researcher in a protein lab, you analyze two different proteins for their shape and the amino acids they contain. your results show that the two proteins have exactly...
- B Biology In mechanism, photophosphorylation is most similar to a. substrate-level phosphorylation in glycolysis. b. oxidative phosphorylation in cellular respiration. c. carbon...
- B Biology How is photosynthesis similar in c4 plants and cam plants? a. in both cases, only photosystem i is used. b. both types of plants make sugar without the calvin cycle. c....
- B Biology Which of the following sequences correctly represents the flow of electrons during photosynthesis? a. nadph - o2 - co2 b. h2o - s nadph - calvin cycle c. h2o - photosystem...
- B Biology The light reactions of photosynthesis supply the calvin cycle with a. light energy. b. co2 and atp. c. h2o and nadph. d. atp and nadph....
- B Biology Which of the following statements is a correct distinction between autotrophs and heterotrophs? a. autotrophs, but not heterotrophs, can nourish themselves beginning with...
- B Biology Which of the following does not occur during the calvin cycle? a. carbon fixation b. oxidation of nadph c. release of oxygen d. regeneration of the co2 acceptor...
Ответ:
B. positive charge is needed for substrate binding
C. a general acid is needed for catalysis to occur
Explanation:
A mutation of lysine 132 toaspartic acid causes a loss of lotzase function as a result of the enzyme lotzase being most catalytically active at pH 7( neutral).
This condition is however achieved under conditions such as a positive charge being involved in the substrate binding and a general acid being involved in the catalytic process.
Ответ:
Flushing the toilet
Explanation:
The average household in the U.S. flushes the toilet at least 15-20 times per-day.