Why is the citric acid cycle called a cycle?

Why is the citric acid cycle called a cycle?

The citric acid cycle is called a cycle because the starting molecule, oxaloacetate (which has 4 carbons), is regenerated at the end of the cycle.

What is the process of ATP synthesis?

ATP synthesis involves the transfer of electrons from the intermembrane space, through the inner membrane, back to the matrix. The combination of the two components provides sufficient energy for ATP to be made by the multienzyme Complex V of the mitochondrion, more generally known as ATP synthase. …

What is Chemiosmosis What does it produce Where does it occur?

Chemiosmosis occurs in mitochondria during cellular respiration and in chloroplasts during photosynthesis. Both of these processes generate ATP.

What is Chemiosmosis in cellular respiration?

Chemiosmosis is the movement of ions across a semipermeable membrane bound structure, down their electrochemical gradient. An example of this would be the formation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis.

What distinguishes the citric acid cycle as a cycle?

The citric acid cycle is the second process of respiration which occurs within the mitochondria of the cell….Complete answer:

Glycolysis	Citric acid cycle
It occurs in both aerobic and anaerobic respiration.	It occurs in aerobic respiration only.
No carbon dioxide evolved.	Carbon dioxide evolved.

Which process occurs during the citric acid cycle?

The citric acid cycle, shown in —also known as the tricarboxylic acid cycle (TCA cycle) or the Krebs cycle—is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate—derived from carbohydrates, fats, and proteins—into carbon dioxide.

What are the different processes through which ATP is synthesized?

In general, the main energy source for cellular metabolism is glucose, which is catabolized in the three subsequent processes—glycolysis, tricarboxylic acid cycle (TCA or Krebs cycle), and finally oxidative phosphorylation—to produce ATP.

How is the synthesis of ATP in the electron transport chain of mitochondria similar to the synthesis of ATP in chloroplast?

How is the synthesis of ATP in the ETC of mitochondria similar to the synthesis of ATP in the chloroplasts? Oxygen serves as the final electron acceptor, keeping the electrons flowing through the electron transport chain so that ATP is continuously made.

What are the steps of chemiosmosis?

The four basic postulates of chemiosmosis are (1) that the membrane-located adenosine triphosphatase (ATPase) reversibly couples the translocation of protons across the membrane to the flow of anhydro-bond equivalents between water and the couple adenosine triphosphate (ATP)/(adenosine diphosphatase (ADP) + Pi); (2) …

What processes use chemiosmosis for ATP?

The production of ATP using the process of chemiosmosis in mitochondria is called oxidative phosphorylation. It is also the method used in the light reactions of photosynthesis to harness the energy of sunlight in the process of photophosphorylation.

What is Kimi osmosis?

In biology, chemiosmosis refers to the process of moving ions (e.g. protons) to the other side of the membrane resulting in the generation of an electrochemical gradient that can be used to drive ATP synthesis.

What is meant by oxidative phosphorylation?

Oxidative phosphorylation is the process in which ATP is formed as a result of the transfer of electrons from NADH or FADH 2 to O 2 by a series of electron carriers. This process, which takes place in mitochondria, is the major source of ATP in aerobic organisms (Figure 18.1).