Posted: November 23rd, 2015

Science Presentation

Science Presentation

PART One

Resource: Appendix A
Create an 8- to 12-slide Microsoft® PowerPoint® presentation addressing the following points:
Provide a picture of a cross section of a leaf and label the following parts:  epidermis, guard cells, stomata, spongy mesophyll, palisade parenchyma, phloem, and xylem.
Describe the leaf anatomy by discussing the functions of the above structures (from question #1). Explain how that anatomy is ideally suited for photosynthesis.
Provide a picture of a cross section of a root and label the following parts:  root cap, root apical meristem, zone of elongation, zone of maturation, root hairs, cortex, vascular tissue, ground tissue, endodermis, and the Casparian strip.
Describe the root anatomy (describe the functions of the structures in question #3) and how that anatomy is ideally suited for growth and absorption of water and minerals from the soil.
Copy and paste the table from Appendix A into your slideshow. Complete the table with the nutrient functions and signs of deficiency.
Format references consistent with APA guidelines.

PART TWO

Resources: This week’s readings
Write a 50- to 75-word response for each bulleted area:
Explain how CO2 enters leaves. What environmental factors control stomatal movement? How are these factors related to physical and chemical properties that control the opening and closing of stomata?
What are primary stages in the photosynthetic carbon reduction (PCR) cycle? Explain the role of each stage. Draw a diagram of the stages by utilizing drawing tools in Microsoft® Word to aid your explanation.
Explain how the ATP and NADPH produced by the photosynthetic electron transport chain are used in the PCR cycle.
What roles do light and Rubisco play in regulating the PCR cycle? Explain your answer.
Explain how cells release energy through glycolysis, respiration, and fermentation. Identify pathways in each stage. Describe each stage’s role in releasing energy.
What is the role of enzymes in degrading starch and sugar? Explain your answer.
Discuss some similarities and differences between respiration and fermentation.
Aerobic organisms are usually larger than anaerobic organisms. Suggest how this might be related to respiration

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