LBL2Lecture11 - b Draw a circle around the item that is...

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Lesson Before Lecture (LBL) 2 Worksheet:  Cellular Respiration (~20 min) Read pgs. 163-164. When a molecule donates an electron, it is oxidized . When a molecule accepts an electron, it is reduced (i.e. the charge of the molecule is reduced). 1) Look at the equation for cellular respiration here and on bottom of page 164. Which statement below correctly describes the overall reaction? Explain why the wrong answers are wrong. a.Sugar is oxidized to carbon dioxide b.Oxygen is oxidized to water. c. Sugar is reduced to carbon dioxide d.Carbon dioxide is reduced to sugar. The electrons that are essential for cellular respiration come from the hydrogens. Electrons are an important source of energy! Molecules with potential to donate many electrons (i.e. hydrogens) are referred to as "high energy". 2) a. Draw boxes around the two items that have the potential to donate electrons.
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Unformatted text preview: b. Draw a circle around the item that is considered to be a "high energy" molecule. Review mitochondria (pgs 109-110, fig. 6.17) 3) In the space below draw a mitochondrion. Label the outer and inner membranes, the intermembrane space, and the matrix. (see additional instructions on website if you need help making drawing in word or inserting an image of a drawing YOU have made- using a drawing from a websource is not allowed) Read page. 166. 4) List the three stages of cellular respiration and identify the location in the cell or mitochondrion where these take place. O H HO H OH H OH H OH CH 2 OH H O O H O H C O O glucose oxygen water carbon dioxide sunlight reactants products C 6 H 12 O 6 + 6 O 2 ⇒ 6 CO 2 + 6 H 2 O + ATP...
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LBL2Lecture11 - b Draw a circle around the item that is...

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