Multiple Choice
Which of the following is a direct effect of the presence of lactose on the lac operon in E. coli?
3. Acids and Bases
Organic Chemistry Reactions
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Photosynthesis is an example of what type of chemical reaction?
A
Addition reaction
B
Elimination reaction
C
Substitution reaction
D
Oxidation-reduction reaction
Verified step by step guidance1
Understand the basic types of chemical reactions: Addition reactions involve combining two or more substances to form a single product. Elimination reactions involve the removal of a small molecule from a larger one, resulting in a double bond or ring formation. Substitution reactions involve the replacement of an atom or group in a molecule with another atom or group.
Recognize that photosynthesis is a complex process that converts light energy into chemical energy, primarily in the form of glucose, using carbon dioxide and water.
Identify the key chemical changes in photosynthesis: Carbon dioxide is reduced to glucose, and water is oxidized to oxygen. This involves the transfer of electrons, which is characteristic of oxidation-reduction (redox) reactions.
Understand that in a redox reaction, one substance is oxidized (loses electrons) and another is reduced (gains electrons). In photosynthesis, water is oxidized, and carbon dioxide is reduced.
Conclude that photosynthesis is an example of an oxidation-reduction reaction because it involves the transfer of electrons between molecules, leading to the formation of glucose and oxygen.
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