Which of the following statements correctly summarizes a redox reaction that occurs in photosynthesis?
1 point
1
Question 2
2.
Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet they are able to survive. Which of the following experimental approaches would be a reasonable way to detect the lack of photosystem II in these organisms?
1 point
1
Question 3
3.
The figure shows the absorption spectrum for chlorophyll a and the action spectrum for photosynthesis. Halobacterium has a photosynthetic membrane that appears purple. Its photosynthetic action spectrum is the inverse of the action spectrum for green plants. (That is, the Halobacterium action spectrum has a peak where the green plant action spectrum has a trough.) What wavelengths of light do the Halobacterium photosynthetic pigments absorb?
1 point
1
Question 4
4.
Which of the following statements correctly describes a reaction associated with photosystem II?
1 point
1
Question 5
5.
In chemiosmosis in mitochondria, protons flow from the intermembrane space into the matrix. In what direction do protons flow during chemiosmosis in chloroplasts?
1 point
1
Question 6
6.
Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of algae to different wavelengths of light. He added aerobic bacteria and then noted in which areas the bacteria congregated. He found that the largest groups were found in the areas illuminated by the red and blue light. This experiment helped to determine the relationship between which of the following parameters?
1 point
1
Question 7
7.
What is the primary function of the Calvin cycle?
1 point
1
Question 8
8.
If plants are grown in the light with CO2 containing a radioactive isotope of oxygen (18O), subsequent analysis will show that 18O incorporated in organic molecules first appears in
1 point
1
Question 9
9.
The NADPH required for the Calvin cycle is produced by which of the following metabolic reactions?
1 point
1
Question 10
10.
Which of the following best describes how oxygen gas is produced during photosynthesis?
2 points
2
Question 11
11.
On the diagram below, please draw NADPH and NADP entering and leaving the ETC of the photosystems, as well as ADP +P, and ATP in their correct locations for use.
3 points
3
Question 12
12.
a)The experiment below is set up to measure the rate of photosynthesis. The flask are spinach chads (the gray disks) and sodim bicarbonate (the white dots). There is a light shining on the flask (you just can't see it 😄 )
Volumetric measurements are taken by reading the syringe to show the volume of gas that is changing.
In a BRIEF paragraph, answer the following questions.It could be based on a lab you viewed, or another version, as long as it uses this set-up.
a) describe the independent and dependent variables that COULD be recorded using this set up.
b) using the variables you indicated in part a, describe what would be a good positive control group.