Scatterplot Graph 

As with all spectrophotometric measurements, it is essential to use a blank.

 Lab 3 Results 

• Best way: Transcribe the whiteboard data into an Excel file or the tables in your results sheet document. This makes it easier to use for your subsequent assignments.
• Quick way: Take a photo of the whiteboard containing all results.

In reference to the experimental protocols, which of the following will be included in all experimental treatments (not including the blank)?

In this experiment you will be investigating the photosynthetic electron transport chain by analysing the reduction of a dye in the presence of six (6) different treatments.

If photosynthesis is occurring in chloroplasts under white (natural) light, what would you expect to observe when you set up your sample and expose it to white light (i.e. what change will be observed)?

 Prelab Activity 

What aspect of photosynthesis are we specifically measuring with these experiments?

In the following paragraph, please fill in the blanks with one of the terms in the following list, which are separated by commas.  Please note, the terms must be spelled exactly as shown, no punctuation marks or plural words are permitted, uppercase letters must not be used, you cannot use any word that is not listed.  The same word may be used more than once or not at all.

Aerobic respiration, anaerobic respiration, blood air threshold, blood oxygen threshold, decreasing, dive gas threshold, dive lactate threshold, heart rate, high, increasing, less than, low, metabolic rate, more than, oxidising, oxidative phosphorylation, oxygen, remaining constant, respiratory rate, water

The following graph shows the amount of gaseous oxygen in arterial blood, venous blood and alveoli of Emperor penguins undergoing a breath-hold dive.

During region 1, the penguin is/are existing oxygen supplies within their circulatory system, while you would expect the blood lactate levels are by an order of 0.5 mmol/litre/min.  This continues for about 5-6 minutes when the is reached, when the penguin takes on more when entering region 2.  During region 2, you can see blood lactate levels is/are by 0.5 mmol/litre/min for the remainder of the dive.  During region 2, you would expect blood oxygen levels to remain quite .  This same phenomenon was observed during the workshop, when the presenter’s dropped while holding his head underwater.

Please answer the following questions by choosing the correct response from the drop down menus:

Q1.  Following a typical aerobic exercise training program, we would not expect a professional athlete to display

Q2.  During a dive, we would expect heart rate to