Week 11: Photosynthesis
To-Do Date: Mar 27 at 12:00pmCartoon
In this cartoon, the young plant complains to his mother that breakfast is the same thing they've had every day- sunlight! Explain what plants do with sunlight and how it allows them to get away with not eating food.
Learning Objectives
By the end of next week, you should be able to:
-
- Compare and contrast consumers and producers; their source of organic molecules, their use of cellular respiration vs. photosynthesis
- Understand that organic molecules can be used for generating ATP vs. growth or repair
- the role of cell respiration and photosynthesis
- the ability to construct any type of subunit from sugar ( with added N--> amino acids; with added N=P--> nucleotides , with enough sugar--> fatty acids) and therefore macromolecules.
- Explain what happens to different wavelengths of light with different pigments
- the relationship between different wavelengths and their color and energy
- what determines the color of a pigment: absorbed vs reflected/transmitted wavelengths
- Write out the equation for photosynthesis.
- Describe the process of the light reaction and the main ingredients and products.
- How light energy is converted into chemical energy in the form of ATP
- How water is used to generate Hydrogens that end up on NADPH
- Describe the process of the Calvin Cycle
- What is the main product and what it can be used for
- What are ATP and NADPH used for in the Calvin Cycle
Study Guide Questions: Metacognition
Some of these questions will be used for your the short answer portion of your exam. The others will be converted into multiple choice questions.
1. Fill in the following chart
| Name of the stage | What goes in (reactants)? | What comes out? (products) | What's the purpose? (why are the products important?) | Where does it happen within a cell? |
|---|---|---|---|---|
2. Write out the equation for photosynthesis. The reactants on the left side of the arrow and products on the right side. Note: if something is produced in the light reaction, but used up in the Calvin Cycle and recycled, it shouldn't be put into this overall equation (ie NADPH). Energy is traditionally written over the arrow and not as one of the reactants.
3. Producers, like plants, are often called the ''base of the food chain''. Explain what this means in terms of cellular respiration, photosynthesis and the ability of organisms to use organic molecules for energy or to build other organic molecules. . Make sure to use the following vocabulary: producers, consumers, photosynthesis, cell respiration, organic molecules, 3 carbon sugar, glucose, amino acids, nucleotides, fatty acids, macromolecules, growth and repair.