Readers ask: How Does The Antibiotic Sulfanilamide Inhibit Bacterial Growth Quizlet?


How does the antibiotic sulfanilamide inhibit bacterial growth?

By the 1940s sulfanilamide was a widely used drug. Sulfa drugs are bacteriostatic; i.e., they inhibit the growth and multiplication of bacteria but do not kill them. They act by interfering with the synthesis of folic acid (folate), a member of the vitamin B complex present in all living cells.

What is PABA quizlet?

PABA is an essential nutrient used by many bacteria in the synthesis of folic acid, a vitamin that fuctions as a coenzyme. Ions of iron, zinc, magnesium or calcium are examples of cofactors.

Which of the following best describes the process by which the bacteria are breaking down the glucose to produce lactic acid quizlet?

In Glycolysis: 2 molecules of ATP are used to break up glucose into 2 molecules of pyruvate, 4 ATP and 2 electron carrying NADH molecules. Then, pyruvate is converted to lactic acid, producing 2 NAD+, used as electron carriers.

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Which is the key difference between aerobic and anaerobic respiratory chains quizlet?

What is the main difference between aerobic respiration and anaerobic respiration? Aerobic respiration requires oxygen to proceed, but anaerobic respiration does not. How many ATP are generated in the electron transport chain? You just studied 15 terms!

What is the mechanism of sulfanilamide class antibiotics?

Sulfa drugs work by binding and inhibiting a specific enzyme called dihydropteroate synthase (DHPS). This enzyme is critical for the synthesis of folate, an essential nutrient.

What are the uses of sulfanilamide?

This medication is used to treat vaginal yeast infections. Sulfanilamide reduces vaginal burning, itching, and discharge that may occur with this condition. This medication is known as a sulfonamide antifungal. It works by stopping the growth of yeast (fungus) that causes the infection.

What type of inhibit is sulfanilamide?

Sulfanilamide is a competitive inhibitor of bacterial enzyme dihydropteroate synthetase. This enzyme normally uses para-aminobenzoic acid (PABA) for synthesizing the necessary folic acid. The inhibited reaction is normally necessary in these organisms for the synthesis of folic acid.

How does sulfanilamide act as an inhibitor?

Mechanism of Action The sulfonamides inhibit the bacterial enzyme dihydropteroate synthetase (DPS) in the folic acid pathway, thereby blocking bacterial nucleic acid synthesis. Sulfonamides substitute for PABA, preventing its conversion to dihydrofolic acid. Alone, this action is considered bacteriostatic.

Is sulfanilamide a base or acid?


Roles Classification
Chemical Role(s): Bronsted base A molecular entity capable of accepting a hydron from a donor (Br o nsted acid ). (via organic amino compound )
Application(s): drug allergen Any drug which causes the onset of an allergic reaction.
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Which of the following best describes the importance of the formation of ATP?

In a cell, a phosphate group is added to ADP to form ATP. Which of the following best describes the importance of the formation of ATP? It provides energy for the cell. The diagram shown represents the input and output of a process performed by the chloroplast of a cell.

What end product of fermentation causes the burning feeling?

Biology A Unit test 3

Question Answer
Which phrase about fermentation is correct takes place without oxygen
Which end product of fermentation causes the burning feeling in muscles that are working hard? lactic acid


Which process breaks down sugars to make ATP when oxygen is present quizlet?

Cellular respiration is a process that releases glucose /energy from sugars and other carbon based molecules to make ATP when oxygen /carbon dioxide is present.

What are the two main differences between fermentation and aerobic cellular respiration quizlet?

The differences are that Anaerobic leads to fermentation that produces lactic acid and ethanol which occurs only in the cytoplasm. Aerobic respiration transports pyruvate(acetyl-COA) to Mitochondria and produces a larger amount of ATP yield (36-28) whereas Anaerobic produces only 2 ATP.

What are the similarities between anaerobic and aerobic respiration?

Similarities: The similarities between aerobic and anaerobic respiration, is that they both use glucose as the starting molecule. This is called the substrate. In addition, both aerobic and anaerobic respiration produce ATP, however, aerobic respiration produces a lot more ATP compared to anaerobic respiration.

Which of the following is an important difference between aerobic and anaerobic respiration?

Aerobic Respiration Anaerobic Respiration
It can be found in the cytoplasm and the mitochondria. It can be found only in the cytoplasm.
Glucose breaks down into carbon dioxide and water. Glucose breaks down into ethyl alcohol, carbon dioxide, and energy.
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