Biology 1009 Lab Discussion Questions
Lab 3 - Diffusion
- What is the point of the Closterium vacuole and carmine dye observations? IA
- What does heat have to do with diffusion?
- Do all particles diffuse at the same rate? I B& C
- Define disorder. Does greater uniformity mean more or less disorder?
- Whatıs osmotic pressure? IIA
- What significance does diffusion have for biology? II B & C
Lab 4 - Enzymes
- Compare and contrast the diagrams on page 50 with the one on page 51.
- How does an enzyme reduce the activation energy of a reaction?
- What is a standard curve?
- What are the variables and controls in the five experiments in this lab?
- Why are the tubes boiled in each exercise?
- Given what you know about amylase, predict an outcome for each experiment.
Lab 5 - Respiration
- What is the difference between respiration and breathing?
- What are the advantages and disadvantages of anaerobic respiration?
- What are the advantages and disadvantages of aerobic respiration?
- How do homeothermic and poikilothermic body temperatures vary with the
environmental temperature?
- How do homeothermic and poikilothermic respiration rates vary with the
environmental temperature?
- What are the advantages and disadvantages of homeothermy and poikilothermy?
Lab 6 - Photosynthesis
- Why are plants green (in terms of your Spec-20 results)?
- Why doesnıt chlorophyll in intact leaves fluoresce?
- Why does chlorophyll extract fluoresce red under ultraviolet light?
- What does the Rfıs of a substance measure?
- Is the Rf of a substance constant? Why?
- Why is it advantageous for a plant to have multiple photosynthetic pigments?
Lab 7 - Mitosis/Meiosis
- What are the results of mitosis and meiosis?
- What are the functions of meiosis and mitosis?
- What is the difference between homologous chromosomes and sister chromatids?
- What are the differences between meiosis I and mitosis?
- What are the differences between meiosis II and mitosis?
- Describe the life-cycle of a multicellular animal.
Lab 9 - Plant Biology Presentations
- Moss life-cycle
- Fern life-cycle
- Flower structure & flowering plant life-cycle
- Roots and stems (includes xylem and phloem)
- Leaves and twigs
- Fruit and pollen dispersal
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