Biology 1406 Lab Exam 3 Objectives
EXERCISE 9 - PHOTOSYNTHESIS
1. Review all objectives, 1-7, page 117, and learn all terms in bold print in the text of Exercise 9.
2. Explain the summary equation for photosynthesis and the role of each substrate in the overall process.
3. Explain the role of carbon dioxide and light in photosynthesis.
4. Identify the colors of light absorbed and transmitted by the chloroplast extract. How does this relate to the process of photosynthesis?
5. Explain Experiment 1, page 117/118.
6. Explain Experiment 3, page 120/121 and how it demonstrates the influence of light for photosynthesis.
7. Explain Exercise 5, pages 123/124 and how it relates to the various wavelengths of visible light and the colors of light that are absorbed and transmitted by the chlorophyll extract and the colored filters. Why are some wavelengths (colors) absorbed while others are transmitted or reflected? Black and white are not colors. What do they represent as far as absorbed and reflected wavelengths of light are concerned?
8. Identify the most common pigments found in chloroplast extract. Which are accessory pigments? What is the role of accessory pigments?
9. Explain Exercise 6, pages 124/125, the process of paper chromatography and the basis for the separation of pigments.
10. Complete Exercise 7, pages 125/126. Identify all chloroplast parts and their functions using the model and electron micrograph on page 126.
11. Identify the locations of the light dependent and light independent reactions of photosynthesis.
12. Each student should complete, prior to lab or in lab, all activities, fill in all blanks in the unit, complete Pre-Lab questions, Post-Lab questions and any supplements provided by the instructor.
EXERCISE 10 - CELLULAR RESPIRATION
1. Review all objectives, 1-5, page 131, and learn all terms in bold print in the text of Exercise 10.
2. Explain the summary equation for aerobic cellular respiration.
3. Differentiate between aerobic and anaerobic respiration. Describe the role of alcoholic fermentation. How does fermentation differ from aerobic respiration.
4. Distinguish between the efficiency of aerobic and anaerobic alcoholic fermentation. Identify the locations of glycolysis and Kerb’s cycle.
5. Explain
explain Exercise IB and the consumption of O2 in aerobic respiration. Calculate O2 comsumption.
6. Explain the purpose of the volumeter, thermobarometer and KOH.
7. Explain Exercise II and how it demonstrates alcoholic fermentation. Recognize the relationship between fermentation, glucose, starch and amylase. Calculate the volume of gas produced using the formula, V=pr2h
8. Complete Exercise 4, pages 139/140. Review the ultrastructure of the mitochondrion and identify the following from electron micrographs; outer membrane, inner membrane, crista, intermembrane compartment and matrix. Be familiar with the parts and functions of the mitochondria from the model.
9. Each student should complete, prior to lab or in lab, all activities, fill in all blanks in the unit,
complete Pre-Lab questions, Post-Lab questions and any supplements provided by the instructor.
EXERCISE11 - MITOSIS
1. Learn objectives objective 1-4, page 143, and learn all terms in bold print in the text of Exercise 11.
2. Identify and explain the events of the stages of the cell cycle, page 147-152, identifying what happens in
each period of Interphase and each phase of Mitosis.
3. Be familiar with all figures in the text of Exercise 11. Omit figures 11.2 and 11.3.
4. In Exercise II identify the stages of mitosis and cytokinesis in plant cells as illustrated by the
Allum root tip.
5. Identify the stages and cellular structures of mitosis and cytokinesis in plant and animal cells as illustrated
in Exercises II and III using the Allum Root Tip and Whitefish Blastula slides.
6. Differentiate between mitosis and cytokinesis, and how mitosis and cytokinesis differ between plant and
animal cells.
7. Omit Exercises IV and V.
8. Each student should complete, prior to lab or in lab, all activities, fill in all blanks in the unit,
complete Pre-Lab questions, Post-Lab questions and any supplements provided by the instructor.
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