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2021-05-14

What are the steps in the carbon cycle?

What are the steps in the carbon cycle?

Photosynthesis, Decomposition, Respiration and Combustion. Carbon cycles from the atmosphere into plants and living things.

What are the 7 steps of cellular respiration in order?

Overview of the steps of cellular respiration. Glycolysis. Six-carbon glucose is converted into two pyruvates (three carbons each). ATP and NADH are made….

  • Glycolysis.
  • Pyruvate oxidation.
  • Citric acid cycle.
  • Oxidative phosphorylation.

What is the correct order of the stages of cellular respiration?

Ch. 9 Honors Biology Cellular Respiration

Question Answer
What is the correct sequence of stages of cellular respiration? glycolysis, Krebs Cycle, Electron Transport Chain
What is the correct equation for cellular respiration? C6H12O6 + 6 O2 –> 6 CO2 + 6 H2O
What are the products of cellular respiration? CO2, H2O, ATP

Which of the following is the first step in respiration?

glycolysis

Which is the correct order of events in glucose metabolism?

So, the correct answer is ‘Glycolysis, Krebs cycle, Electron transport chain’.

What is the order in metabolism in which glucose is broken down to energy?

Glycolysis is the first step in the breakdown of glucose to extract energy for cellular metabolism. Glycolysis consists of an energy-requiring phase followed by an energy-releasing phase.

What is the correct sequence of events in glycolysis?

The correct answer is (b) glycolysis, preparatory reaction, citric acid cycle, electron transport chain. Glycolysis consists of four stages.

What is the process of breaking down glucose called?

Cellular respiration is the process of extracting energy in the form of ATP from the glucose in the food you eat. In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis. In stage two, the pyruvate molecules are transported into the mitochondria.

What are the three ways of breakdown of glucose?

(i) Aerobic respiration takes place in the mitochondria in the presence of oxygen. Pyruvic acid is converted into carbon dioxide, and water thus releasing a lot of energy. (ii) Anaerobic respiration takes place in the cytoplasm in the absence of oxygen.

Does photosynthesis break down glucose?

In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process. Carbon dioxide and water are products of this reaction.

What are the key steps of glycolysis?

Figure 16.3. Stages of Glycolysis. The glycolytic pathway can be divided into three stages: (1) glucose is trapped and destabilized; (2) two interconvertible three-carbon molecules are generated by cleavage of six-carbon fructose; and (3) ATP is generated.

What are the 2 types of glycolysis?

Glycolysis occurs in both aerobic and anaerobic states. In aerobic conditions, pyruvate enters the citric acid cycle and undergoes oxidative phosphorylation leading to the net production of 32 ATP molecules.

Why is glycolysis split into 2 stages?

Glycolysis consists of two distinct phases. The first part of the glycolysis pathway traps the glucose molecule in the cell and uses energy to modify it so that the six-carbon sugar molecule can be split evenly into the two three-carbon molecules.

How many ATP are used in glycolysis?

two ATP

What are the irreversible steps of glycolysis?

3 irreversible steps in glycolysis: hexokinase; phosphofructokinase; pyruvate kinase. New enzymes are needed to catalyze new reactions in the opposite direction for gluconeogenesis. Additional needs for transport.

Why are three steps in glycolysis irreversible?

The final step of glycolysis is the conversion of PEP to pyruvate. The reason for this intricate process is both because the direct conversion of PEP to pyruvate is irreversible and because the cell must avoid a futile cycle in which pyruvate from glycolysis is immediately converted back to PEP.

What is the role of fructose-2 6-Bisphosphate?

Fructose-2,6-bisphosphate functions as a potent allosteric activator of PFK1, a rate-limiting enzyme of glycolysis. Therefore, TIGAR inhibits glycolysis, thereby redirecting cellular glucose metabolism to the pentose phosphate pathway shunt.