Please answer the following questions:

1.- What are the three metabolic stages of Cellular respiration?

2.- How many ATP molecules are produced by Cellular Respiration and by Fermentation?

3.- Where in the cell, Glycolysis and Fermentation take place?

4.- In which cellular organelle citric acid cycle and electron transport chain take place?

1-Define Photosynthesis.

2-Microscopic pores of leaf where gas exchange occurs is known as___________________________

3-Define a Chloroplasts.

4-Photosynthesis is divided into two phases: A_______________________________________________

B_______________________________________________

5-Define Photoautotrophs

6- How many chromosomes are found in human body cells?

7-Define the Cell cycle.

8- Name the Three Phases of Interphase.

9- Name the Five stages of Mitosis.

10- Define Cytokinesis.

 

 

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The three metabolic stages of Cellular respiration

Introduction

The three metabolic stages of cellular respiration are glycolysis, the Krebs cycle and electron transport chain (ETC). In this article, I will explain these three stages in detail and cover some important points about each one.

Glycolysis

The first stage of cellular respiration is glycolysis, the breakdown of glucose (a type of carbohydrate) to pyruvate. This occurs in the cytoplasm near the inner membrane. Glycolysis uses enzymes to split each glucose molecule into two molecules of pyruvate and one molecule of ATP; these three substances can then be used by other reactions within cells or exported out into the bloodstream for energy needs outside your body.

Glycolysis takes place in two steps: First, an enzyme called phosphofructokinase cleaves off one sugar from a cluster known as a fructose phosphate bond; then another enzyme called fructokinase combines this molecule with one from another fructose phosphate bond in order to produce 2 molecules of Fructose-6-phosphate (F6P).

Pyruvate oxidation and the Krebs cycle

In the second stage of cellular respiration, acetyl CoA is converted to pyruvate. The pyruvate is then oxidized in a series of reactions called the Krebs cycle. During this process, NADH is reduced to NAD and electrons are transferred from NADH to FADH2 (or other electron acceptors).

The final step in cellular respiration is oxidative phosphorylation: anaerobic metabolism uses ATP synthase as its “engine,” producing two molecules of ATP each second—the same amount produced by glycolysis alone!

Electron transport chain

The final stage of cellular respiration is the electron transport chain. This occurs in two stages: the first involves transfer of electrons from NADH to oxygen, and the second involves transfer from oxygen back to NADH.

The ETC is a series of proteins that transfer electrons from NADH through a series of enzymes (including cytochrome bf complex), which results in energy being released as ATP.

Takeaway:

In the process of cellular respiration, there are three metabolic stages: glycolysis, the citric acid cycle and oxidative phosphorylation. Each stage has its own role in the overall process of breaking down glucose into ATP (energy) for your cells to use.

Glycolysis is a type of cellular respiration that occurs in all living organisms and involves the conversion of glucose into pyruvate by means other than photosynthesis (see below). It also includes reactions that produce carbon dioxide as by-products; these reactions do not require oxygen or water. During glycolysis, one molecule of glucose combines with two molecules of water to form six molecules total including three NADH molecules and three FADH2 molecules which serve as electron acceptors during oxidative phosphorylation (OP).

Conclusion

All of the reactions in cellular respiration are important for energy generation and maintenance. In order to have a good understanding of this process, it is important that we understand what goes on inside a cell. Cells contain many different parts such as DNA, mitochondria and chloroplasts which are all involved in respiration.