Plant vacuoles must also maintain an optimum pH for its acid hydrolases. True False
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Plant vacuoles must also maintain an optimum pH for its acid hydrolases.
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- The optimal temperature for human amylase is very different than that from plants such as barley. What would you predict is the optimal temperature for human amylase in Celsius?With the aid of suitable diagram, discuss negative feedback by allosteric inhibition of the end-product. Give an example of this inhibition in glycolysis and explain the process.The conversion of pyruvate into oxaloacetate is an anaplterotic reaction to replenish citrus acid cycle metabolites that were used up during animalism. True or false
- Oxygen is toxic to anaerobic organisms primarily due to the fact that they lack the ability to express the enzymes needed to metabolize the toxic intermediates generated from oxygen utilization. true or falseOne of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency and the enzyme lacks zinc, it would be referred to as the: a. apoenzyme. b. coenzyme. c. holoenzyme. d. prosthetic group. e. substrate.TRUE or FALSE. Glucose in Phenylethyl Alcohol Agar (PEA) inhibits the growth of Gram negative bacteria by interfering with DNA synthesis.
- True or false Compared to nad+, electrons transferred to FAD lead to less proton translocatuon in the electronic transport chainTrue or False – During fermentation, pyruvic acid is reduced by FADH2 to free up FAD+ to keep glycolysis going.Seven tomato plants were treated with chlorogenic acid (and seven control plants were not treated) to determine if this acid influences the activity of the enzyme o-diphenol oxidase in their leaves which is normally 13 units. The enzyme activity data are presented below. Does this treatment affect enzyme activity? TREATED – 35, 45, 36, 11, 41, 29, 38
- All fermentative pathways: generate gas. regenerate NAD. shut down in the presence of oxygen. produce Lactic Acid as an end product.True or False a. Water is not a very good electron donor and requires solar energy to transfer electrons. True False b. Pyruvate carboxylase requires thiamine pyrophosphate as a coenzyme. True FalseThe TCA cycle is an example of __________. ○ catabolism ○ anabolism ○ lithotrophy ○ autotrophy