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TLS Online TPP Program

#Question id: 10159

The ambient temperature exerts an important influence over Ω and the concentrations of CO2 and O2 around the active site of rubisco. Warmer environments have the effect of;  Find the incorrect one?

#Unit 6. System Physiology – Plant
  1. increasing the oxygenase activity of rubisco more than the carboxylase activity. The greater increase of KC for CO2 than of KO for O2 diminishes the W of rubisco
  2. The increase of [O2]/[CO2] decreases the vC/vO ratio; that is, the oxygenase activity of rubisco prevails over the carboxylase activity
  3. Increasing the stomatal aperture to conserve water, the stomatal closure the uptake of atmospheric CO2, thereby decreasing CO2 at the active site of rubisco

  4. warmer environments significantly limit the efficiency of photosynthetic carbon assimilation because the progressive increase in temperature tilts the balance away from photosynthesis (carboxylation) and toward photorespiration (oxygenation)

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TLS Online TPP Program

#Question id: 12607

#Unit 10. Ecological Principles

Which of the following lists of organisms is ranked in correct order from lowest to highest percent in production efficiency?
TLS Online TPP Program

#Question id: 12608

#Unit 10. Ecological Principles

The  amount of  chemical energy in  consumers? food that is  converted to  their own  new biomass during a  given time period is known as which of the following?
TLS Online TPP Program

#Question id: 12609

#Unit 10. Ecological Principles

Which of the following is an example of an ecosystem?
TLS Online TPP Program

#Question id: 12610

#Unit 10. Ecological Principles

If the Sun were to suddenly stop providing energy to Earth, most ecosystems would vanish. Which of the following ecosystems would likely survive the longest after this hypothetical disaster?
TLS Online TPP Program

#Question id: 12779

#Unit 10. Ecological Principles

Suppose you are studying the nitrogen cycling in a pond ecosystem over the course of a year. While you are collecting data, a flock of 100 Canada geese lands and spends the night during a fall migration. What could you do to eliminate error in your study as a result of this event?
TLS Online TPP Program

#Question id: 12780

#Unit 10. Ecological Principles

The producers in aquatic ecosystems include organisms in which of the following groups?