Examine the Illustration Below

question 18

Multiple Choice

Examine the illustration below. Which statement best summarizes the contribution of Photosystem I (PSI) during photosynthesis?

• A)PSI provides the initial energy boost to the electrons on their way to Photosystem II (PSI
• I).
• B)PSI generates the excited electrons that initially accumulate within the thylakoid space and eventually drive ATP synthesis.
• C)PSI generates the high-energy electrons that are transported by NADPH to the Calvin cycle and will eventually reduce the carbon in CO₂.
• D)PSI regulates the transmembrane passage of protons through the thylakoid membrane.

Understand the basic principles of gas exchange and the role of diffusion in respiratory systems.

Identify the unique respiratory adaptations of various animals, including insects, aquatic animals, and mammals.

Explain the factors that affect gas exchange efficiency, including medium, temperature, and pressure.

Describe the structural features and functions of different respiratory systems (gills, lungs, tracheae).

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Definitions:

Insomnia

A common sleep disorder that involves difficulty falling asleep, staying asleep, or obtaining restorative sleep, leading to daytime impairments.

Night Terrors

Intense episodes of fear that occur during deep, non-REM sleep, often accompanied by screaming, thrashing, and a heightened state of arousal.

N3 Sleep

The third stage of non-REM sleep that is characterized by deep, restorative sleep and the presence of delta waves in brain activity.

REM Rebound

The phenomenon where there is an increased frequency and intensity of REM (Rapid Eye Movement) sleep after periods of REM sleep deprivation.