Question

Which of the following pathways produce ATP during cellular respiration.

Check All That Apply

a) glycolysis

b) electron transport chains

c)Calvin cycle

d) Krebs cycle

e) preparatory reaction

Answer 1

Glucolysis

Krebs cycle

Electron transport chain

these are producing ATP during cellular respiration.

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients like sugars, proteins and fatty acids into adenosine triphosphate (ATP), and then releases the waste products. The reactions involved in respiration are catabolic reactions, which break large molecules into smaller ones and releasing energy.

Cellular respiration occurs in above four phases

Glycolysis:

In glycolysis glucose converted into pyruvate, which yield 2 ATP and 2 NADP

Preparatory reaction :

In this stage pyruvate converted into ACoA, 2 NADP formd and it transported to Electrn transport chain. No ATP formed in this reaction but NADH formed in reacction responsible for ATP production.

Krebs cycle:

series events occurs in this cycle, which yields 2 ATP , 6 NADP and FADH2

Electron transport chain :

Most importent step, which yields 34 Atp by the above NADP and FADPH2

total atp produced are 38 during cellular respiration.

Calvin cycle used the ATP to form glucose.It uses 18 ATP and 12 NADP to form one molicule of glucose. It is also known as dark reaction. It does not need light. It occurs in stroma.

In the C₄ plants, the Calvin cycle occurs in the bundle-sheath cells, in C₃ plants this occurs in the mesophyll cells.