Question

1. You expose a plant that contains chlorophyll a, chlorophyll b, and carotenoids to different wavelengths of light, then measure the level of resonance-energy transfer. Which of the following results would you expect?

   	a.	Oxygen production is highest upon exposure to yellow light
   	b.	Oxygen production is highest upon exposure to blue light
   	c.	Oxygen production is highest upon exposure to white light
   	d.	Oxygen production is highest upon exposure to green light
   	e.	Oxygen production is highest upon exposure to far red light

2. High levels of ATP will impact cellular respiration by:

   	a.	Decreasing rates of pyruvate processing to acetyl-CoA
   	b.	Increasing rates of glycolysis and the citric acid cycle by allosteric activation of enzymes
   	c.	Decreasing rates of glycolysis and the citric acid cycle by competitive inhibition of enzymes
   	d.	Decreasing rates of glycolysis and the citric acid cycle by allosteric inhibition of enzymes
   	e.	ATP levels do not impact the rates of cellular respiration pathways

3. When consumed, fatty acids provide more calories per gram than carbohydrates because:

   	a.	Fatty acids have a greater number of C-O bonds, where electrons are NOT shared equally
   	b.	Fatty acids are the most important form of chemical energy for all organisms
   	c.	Fatty acids have a greater number of C-O bonds, where electrons are shared more equally
   	d.	Fatty acids have a greater number of C-C and C-H bonds, where electrons are shared more equally
   	e.	Fatty acids are smaller molecules

Answer 1

Ans-1- the wavelength of light which corresponds to the blue is absorbed by the chlorophyll and shows maximum photosynthesis and oxygen production in this light.

So option B is correct

Ans-2- ATP is an allosteric inhibitor of pyruvate kinase and PFK-1, both are the regulatory enzymes of glycolysis. Hence ATP slowed down glycolysis.

Option D is correct

Ans-3- Fatty acids produces more energy upon oxidation because all the carbons are reduced in fatty acids.

Option D is correct