History for \'Lecture 8 Lecture 8 Assignment 9/10 (Calculated) : Wednesday, Sept

Question

History for 'Lecture 8 Lecture 8 Assignment 9/10 (Calculated) : Wednesday, September 26, 2018 2:45 PM : Wednesday, September 26, 2018 9:35 AM :1. An organism that carries out cellular respiration in its mitochondria: O may be any kind of cell. o may be a cell from a terrestrial (land) plant. is a bacterium. O may be a prokaryotic cell from the domain Archaea. 32. Which of the following is/are TRUE regarding redox reactions? (Select all that apply.) Redox reactions may involve the transfer of hydrogen ions (H+). A molecule that has gained H atoms is said to be reduced. Oxidizing agents accept electrons. If a molecule accepts electrons, it has been reduced. Reducing agents accept H atoms. Oxidizing agents accept Ht ions Instructional Guidance: This question assesses understanding of different ways of expressi 3. The gain of electrons is referred to as recuction 04. Which of these reactions summarizes the overal reactions of cellular respiration? MacBook FS

Explanation / Answer

1. Cellular respiration in mitochondria does not occur in every cell type because in bacteria or archea, there is no mitochondria so cellular respiration occurs in cytoplasm or with the help of mesosomes or across the plasma membrane. But in terrestrial or land plant, it occurs in mitochondria due to the presence of this membrane bound orgenelle.

2. True statements for Redox reactions-

a.If a molecule accepts electron, it has been reduced.

b.Oxidizing agents accept electrons.

c. A molecule that has gained H atom is said to be reduced.

*** Oxidation and reduction is not related with H+ ion.

3. The gain of electrons is referred to as Reduction.

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