Ch. 5 - Microbial Metabolism

Bauman - Microbiology with Diseases by Taxonomy 6th Edition

Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302당신이 사용하는 게 아니라요?교과서 변경

Bauman 6th Edition

Ch. 5 - Microbial Metabolism

문제 2

5장, 문제 2

Two ATP molecules are used to initiate glycolysis. Enzymes generate molecules of ATP for each molecule of glucose that undergoes glycolysis. Thus, a net gain of _________ molecules of ATP is produced in glycolysis.

검증된 단계별 안내

Understand that glycolysis involves an initial investment phase where 2 ATP molecules are used to start the process.

Recognize that during glycolysis, enzymes catalyze reactions that produce ATP molecules as the glucose molecule is broken down.

Identify the total number of ATP molecules produced during the payoff phase of glycolysis, which is typically 4 ATP molecules per glucose molecule.

Calculate the net gain of ATP by subtracting the ATP molecules used (2) from the ATP molecules produced (4) using the formula: \(\text{Net ATP} = \text{ATP produced} - \text{ATP used}\).

Conclude that the net gain of ATP molecules in glycolysis is the difference found in the previous step.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Glycolysis Overview

Glycolysis is the metabolic pathway that breaks down one glucose molecule into two pyruvate molecules, producing energy in the form of ATP and NADH. It occurs in the cytoplasm and does not require oxygen, making it a key step in cellular respiration.

ATP Investment and Payoff Phases

Glycolysis involves an initial investment phase where 2 ATP molecules are used to phosphorylate glucose, followed by a payoff phase where 4 ATP molecules are produced. The difference between ATP produced and ATP used determines the net ATP gain.

Net ATP Yield in Glycolysis

Although 4 ATP molecules are generated during glycolysis, 2 ATP molecules are consumed at the start, resulting in a net gain of 2 ATP molecules per glucose molecule. This net gain provides energy for cellular activities.

관련 실천

교과서 질문

Label the diagram below to indicate acetyl-CoA, electron transport chain, FADH2, fermentation, glycolysis, citric acid cycle, NADH, and respiration. Indicate the net number of molecules of ATP that could be synthesized at each stage during bacterial respiration of one molecule of glucose.

1246

views

교과서 질문

How do organisms control the rate of metabolic activities in their cells?

1585

views

교과서 질문

Indian tradition holds that storing water in brass pitchers prevents disease. Scientists have discovered that there is some truth in the tradition. The researchers collected river water samples and found fecal bacterial counts as high as 1 million bacteria per milliliter. However, they could detect no bacteria in the water after it had been stored for two days in traditional brass pitchers. Bacterial levels in plastic or earthenware containers remained high over the same period. How can brass, which is an alloy of copper mixed with zinc, make water safer to drink?

<IMAGE>

1231

views

교과서 질문

The initial catabolism of glucose occurs by glycolysis and/or the ________ and ________pathways.

1276

views

교과서 질문

For the phrase given below, indicate the type of metabolism referred to, using the following choices:

a. Anabolism only

b. Both anabolism and catabolism (amphibolic)

c. Catabolism only